文档建议反馈控制台
首页
学习
活动
专区
圈层
工具
MCP广场
文章/答案/技术大牛
发布
社区首页 >问答首页 >如何通过HtmlTableRow显示以前隐藏的jQuery？

问如何通过HtmlTableRow显示以前隐藏的jQuery？
EN

Stack Overflow用户
提问于 2015-06-27 17:00:42
回答 4查看 156关注 0票数 2

我有一个四行的HtmlTable。前两行(“列标题”行和常规数据行)始终显示。如果用户选择一个"+“按钮，则应该添加另一个按钮，然后再添加一个按钮(最多四行)。

两个“休眠”行是在C#中创建的，但最初是通过将其高度设置为0来“隐藏”的(无论如何，这就是目的)：

代码语言：javascript
复制
boxIndex2 = new TextBox()
{
    CssClass = "finaff-webform-field-input",
    Width = TEXTBOX_WIDTH,
    Height = 0,
    ID = "boxIndex2foapalrow3"
};
cellColIndex2.Controls.Add(boxIndex2);

注意:这只是HtmlTableRow中六个“文本框”中的一个；它们的高度都设置为0。

这部分起作用：

​

​

正如您所看到的，第三行和第四行是短的，但不是不可见的/隐藏的。单击"+“按钮可以使它们达到完全高度：

​

​

...and再次选择"+“按钮”充气“最后一个缩略行：

​

​

我为此使用的jQuery是：

代码语言：javascript
复制
$(document).on("click", '[id$=btnAddFoapalRow]', function (e) {
    var textboxHeight = 15;
    if ($('[id$=boxIndex2foapalrow3]').height() === 0) {
        $('[id$=boxIndex2foapalrow3').height(textboxHeight);
        $('[id$=boxFund2foapalrow3').height(textboxHeight);
        $('[id$=boxOrg2foapalrow3').height(textboxHeight);
        $('[id$=boxAccount2foapalrow3').height(textboxHeight);
        $('[id$=boxActivity2foapalrow3').height(textboxHeight);
        $('[id$=boxAmount2foapalrow3').height(textboxHeight);
    }
    else if ($('[id$=boxIndex3foapalrow4]').height() === 0) {
        $('[id$=boxIndex3foapalrow4').height(textboxHeight);
        $('[id$=boxFund3foapalrow4').height(textboxHeight);
        $('[id$=boxOrg3foapalrow4').height(textboxHeight);
        $('[id$=boxAccount3foapalrow4').height(textboxHeight);
        $('[id$=boxActivity3foapalrow4').height(textboxHeight);
        $('[id$=boxAmount3foapalrow4').height(textboxHeight);
    }
});

那么，在选择"add a row“("+")按钮之前，如何使这些行完全不显示呢？

我已经尝试了我所能想到的一切，让Web部件上的两行“开始生活”不可见，然后以编程方式将它们可视化。

我试过：

将它们的可见属性设置为false (C#代码隐藏)，然后使用各种客户端/jQuery代码来显示它们。我尝试了以下jQuery (JavaScript?)方法：

代码语言：javascript
复制
.toggle()
.show()
.slidedown()

...like so：

代码语言：javascript
复制
/* This is supposed to make the rows visible, but is not yet working... */
$(document).on("click", '[id$=btnAddFoapalRow]', function (e) {
    if ($('[id$=foapalrow3]').not(":visible")) {
        alert('reached the foapalrow3 not visible branch');
        //$('[id$=foapalrow3]').slideDown();
        //$('[id$=foapalrow3]').toggle();
        $('[id$=foapalrow3]').show();
    }
    else if ($('[id$=foapalrow4]').not(":visible")) {
        alert('reached the foapalrow4 not visible branch');
        $('[id$=foapalrow4]').slideDown();
    }
});

...but这些都不起作用。我在上面的代码中看到了“到达foapalrow3不可见分支”警报。

那么，我是否需要走一条完全不同的路径，例如使这些单独的一行表，并使这些表可见？也就是说，单击"+“按钮使具有第二数据行(第三行总体)的表可见，单击该按钮再次使第三数据行(第四行)可见？或者怎么做？

更新

在jmoreno的请求/建议下，这里是HTML，如“查看源”所示：

代码语言：javascript
复制
<button id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_btnAddFoapalRow" type="button">+</button>
    <table border="2">
        <tr>
            <td width="88px" style="text-align:center;"><span class="dplatypus-webform-field-label">Index</span></td>
            <td width="88px" style="text-align:center;"><span class="dplatypus-webform-field-label" style="text-align:center;">Fund</span></td>
            <td width="88px" style="text-align:center;"><span class="dplatypus-webform-field-label" style="text-align:center;">Organization</span></td>
            <td width="88px" style="text-align:center;"><span class="dplatypus-webform-field-label" style="text-align:center;">Account</span></td>
            <td width="88px" style="text-align:center;"><span class="dplatypus-webform-field-label" style="text-align:center;">Activity</span></td>
            <td width="88px" style="text-align:center;"><span class="dplatypus-webform-field-label" style="text-align:center;">Amount</span></td>
        </tr>
        <tr>
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$ctl130" type="text" class="dplatypus-webform-field-input" style="width:88px;" /></td>
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$ctl132" type="text" class="dplatypus-webform-field-input" style="width:88px;" /></td>
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$ctl134" type="text" class="dplatypus-webform-field-input" style="width:88px;" /></td>
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$ctl136" type="text" class="dplatypus-webform-field-input" style="width:88px;" /></td>
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$ctl138" type="text" class="dplatypus-webform-field-input" style="width:88px;" /></td>
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$ctl140" type="text" class="dplatypus-webform-field-input" style="width:88px;" /></td>
        </tr>
        <tr id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_foapalrow3">
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxIndex2foapalrow3" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxIndex2foapalrow3" class="dplatypus-webform-field-input" style="height:0px;width:88px;" /></td>
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxFund2foapalrow3" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxFund2foapalrow3" class="dplatypus-webform-field-input" style="height:0px;width:88px;" /></td>
             <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxOrg2foapalrow3" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxOrg2foapalrow3" class="dplatypus-webform-field-input" style="height:0px;width:88px;" /></td>
             <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxAccount2foapalrow3" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxAccount2foapalrow3" class="dplatypus-webform-field-input" style="height:0px;width:88px;" /></td>
             <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxActivity2foapalrow3" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxActivity2foapalrow3" class="dplatypus-webform-field-input" style="height:0px;width:88px;" /></td>
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxAmount2foapalrow3" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxAmount2foapalrow3" class="dplatypus-webform-field-input" style="height:0px;width:88px;" /></td>
        </tr>
        <tr id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_foapalrow4">
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxIndex3foapalrow4" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxIndex3foapalrow4" class="dplatypus-webform-field-input" style="height:0px;width:88px;" /></td>
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxFund3foapalrow4" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxFund3foapalrow4" class="dplatypus-webform-field-input" style="height:0px;width:88px;" /></td>
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxOrg3foapalrow4" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxOrg3foapalrow4" class="dplatypus-webform-field-input" style="height:0px;width:88px;" /></td>
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxAccount3foapalrow4" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxAccount3foapalrow4" class="dplatypus-webform-field-input" style="height:0px;width:88px;" /></td>
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxActivity3foapalrow4" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxActivity3foapalrow4" class="dplatypus-webform-field-input" style="height:0px;width:88px;" /></td>
            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxAmount3foapalrow4" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxAmount3foapalrow4" class="dplatypus-webform-field-input" style="height:0px;width:88px;" /></td>
        </tr>
    </table>

...and是如何在服务器端C#中创建的所有内容( HtmlTable及其行、单元格和内容)：

代码语言：javascript
复制
private void GenerateSection5()
{
    HtmlTable tblSection5 = null;

    var headerLabel = new Label
    {
        CssClass = "dplatypus-webform-field-label",
        Text = "<h2>FOAPAL / Payment Amount Information</h2>"
    };
    this.Controls.Add(headerLabel);

    AddVerticalSpace();

    tblSection5 = GetSection5Table();
    if (null != tblSection5)
    {
        this.Controls.Add(tblSection5);
    }

    AddVerticalSpace();
    var totalLabel = new Label
    {
        CssClass = "dplatypus-webform-field-label",
        Text = "Total: "
    };
    this.Controls.Add(totalLabel);
    boxSection5Total = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input"
    };
    this.Controls.Add(boxSection5Total);

    AddVerticalSpace();
}

private HtmlTable GetSection5Table()
{
    const int TEXTBOX_WIDTH = 88;
    const String CELL_WIDTH = "88px";
    foapalHTMLTable = new HtmlTable();
    foapalHTMLTable.Border = 2;

    // Create Row 1
    var row1 = new HtmlTableRow();

    var cellColTitle1 = new HtmlTableCell();
    cellColTitle1.Width = CELL_WIDTH;
    cellColTitle1.Style.Add("text-align", "center");
    row1.Cells.Add(cellColTitle1);
    var cellColTitle2 = new HtmlTableCell();
    cellColTitle2.Width = CELL_WIDTH;
    cellColTitle2.Style.Add("text-align", "center");
    row1.Cells.Add(cellColTitle2);
    var cellColTitle3 = new HtmlTableCell();
    cellColTitle3.Width = CELL_WIDTH;
    cellColTitle3.Style.Add("text-align", "center");
    row1.Cells.Add(cellColTitle3);
    var cellColTitle4 = new HtmlTableCell();
    cellColTitle4.Width = CELL_WIDTH;
    cellColTitle4.Style.Add("text-align", "center");
    row1.Cells.Add(cellColTitle4);
    var cellColTitle5 = new HtmlTableCell();
    cellColTitle5.Width = CELL_WIDTH;
    cellColTitle5.Style.Add("text-align", "center");
    row1.Cells.Add(cellColTitle5);
    var cellColTitle6 = new HtmlTableCell();
    cellColTitle6.Width = CELL_WIDTH;
    cellColTitle6.Style.Add("text-align", "center");
    row1.Cells.Add(cellColTitle6);

    var indexStr = new Label
    {
        CssClass = "dplatypus-webform-field-label",
        Text = "Index"
    };
    cellColTitle1.Controls.Add(indexStr);
    var fundStr = new Label
    {
        CssClass = "dplatypus-webform-field-label",
        Text = "Fund"
    };
    fundStr.Style.Add("text-align", "center");
    cellColTitle2.Controls.Add(fundStr);
    var orgStr = new Label
    {
        CssClass = "dplatypus-webform-field-label",
        Text = "Organization"
    };
    orgStr.Style.Add("text-align", "center");
    cellColTitle3.Controls.Add(orgStr);
    var accountStr = new Label
    {
        CssClass = "dplatypus-webform-field-label",
        Text = "Account"
    };
    accountStr.Style.Add("text-align", "center");
    cellColTitle4.Controls.Add(accountStr);
    var activityStr = new Label
    {
        CssClass = "dplatypus-webform-field-label",
        Text = "Activity"
    };
    activityStr.Style.Add("text-align", "center");
    cellColTitle5.Controls.Add(activityStr);
    var amountStr = new Label
    {
        CssClass = "dplatypus-webform-field-label",
        Text = "Amount"
    };
    amountStr.Style.Add("text-align", "center");
    cellColTitle6.Controls.Add(amountStr);
    foapalHTMLTable.Rows.Add(row1);

    btnAddFoapalRow = new HtmlButton();
    btnAddFoapalRow.Attributes["type"] = "button";
    btnAddFoapalRow.InnerHtml = "+"; 
    btnAddFoapalRow.ID = "btnAddFoapalRow";
    this.Controls.Add(btnAddFoapalRow);

    // Create row 2
    foapalrow2 = new HtmlTableRow();

    var cellColIndex1 = new HtmlTableCell();
    cellColIndex1.Width = CELL_WIDTH;
    foapalrow2.Cells.Add(cellColIndex1);
    var cellColFund1 = new HtmlTableCell();
    cellColFund1.Width = CELL_WIDTH;
    foapalrow2.Cells.Add(cellColFund1);
    var cellColOrg1 = new HtmlTableCell();
    cellColOrg1.Width = CELL_WIDTH;
    foapalrow2.Cells.Add(cellColOrg1);
    var cellColAccount1 = new HtmlTableCell();
    cellColAccount1.Width = CELL_WIDTH;
    foapalrow2.Cells.Add(cellColAccount1);
    var cellColActivity1 = new HtmlTableCell();
    cellColActivity1.Width = CELL_WIDTH;
    foapalrow2.Cells.Add(cellColActivity1);
    var cellColAmount1 = new HtmlTableCell();
    cellColAmount1.Width = CELL_WIDTH;
    foapalrow2.Cells.Add(cellColAmount1);

    boxIndex1 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH
    };
    cellColIndex1.Controls.Add(boxIndex1);
    boxFund1 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH
    };
    cellColFund1.Controls.Add(boxFund1);
    boxOrganization1 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH
    };
    cellColOrg1.Controls.Add(boxOrganization1);
    boxAccount1 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH
    };
    cellColAccount1.Controls.Add(boxAccount1);
    boxActivity1 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH
    };
    cellColActivity1.Controls.Add(boxActivity1);
    boxAmount1 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH
    };
    cellColAmount1.Controls.Add(boxAmount1);

    foapalHTMLTable.Rows.Add(foapalrow2);

    // Row 3
    foapalrow3 = new HtmlTableRow();
    foapalrow3.ID = "foapalrow3";

    var cellColIndex2 = new HtmlTableCell();
    cellColIndex2.Width = CELL_WIDTH;
    foapalrow3.Cells.Add(cellColIndex2);
    var cellColFund2 = new HtmlTableCell();
    cellColFund2.Width = CELL_WIDTH;
    foapalrow3.Cells.Add(cellColFund2);
    var cellColOrg2 = new HtmlTableCell();
    cellColOrg2.Width = CELL_WIDTH;
    foapalrow3.Cells.Add(cellColOrg2);
    var cellColAccount2 = new HtmlTableCell();
    cellColAccount2.Width = CELL_WIDTH;
    foapalrow3.Cells.Add(cellColAccount2);
    var cellColActivity2 = new HtmlTableCell();
    cellColActivity2.Width = CELL_WIDTH;
    foapalrow3.Cells.Add(cellColActivity2);
    var cellColAmount2 = new HtmlTableCell();
    cellColAmount2.Width = CELL_WIDTH;
    foapalrow3.Cells.Add(cellColAmount2);

    boxIndex2 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH,
        Height = 0,
        ID = "boxIndex2foapalrow3"
    };
    cellColIndex2.Controls.Add(boxIndex2);

    boxFund2 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH,
        Height = 0,
        ID = "boxFund2foapalrow3"
    };
    cellColFund2.Controls.Add(boxFund2);

    boxOrganization2 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH,
        Height = 0,
        ID = "boxOrg2foapalrow3"
    };
    cellColOrg2.Controls.Add(boxOrganization2);

    boxAccount2 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH,
        Height = 0,
        ID = "boxAccount2foapalrow3"
    };
    cellColAccount2.Controls.Add(boxAccount2);

    boxActivity2 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH,
        Height = 0,
        //Visible = false, <= this does work
        ID = "boxActivity2foapalrow3"
    };
    cellColActivity2.Controls.Add(boxActivity2);

    boxAmount2 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH,
        Height = 0,
        ID = "boxAmount2foapalrow3"
    };
    cellColAmount2.Controls.Add(boxAmount2);
    foapalHTMLTable.Rows.Add(foapalrow3);

    // Row 4
    foapalrow4 = new HtmlTableRow();
    foapalrow4.ID = "foapalrow4";

    var cellColIndex3 = new HtmlTableCell();
    cellColIndex3.Width = CELL_WIDTH;
    foapalrow4.Cells.Add(cellColIndex3);
    var cellColFund3 = new HtmlTableCell();
    cellColFund3.Width = CELL_WIDTH;
    foapalrow4.Cells.Add(cellColFund3);
    var cellColOrg3 = new HtmlTableCell();
    cellColOrg3.Width = CELL_WIDTH;
    foapalrow4.Cells.Add(cellColOrg3);
    var cellColAccount3 = new HtmlTableCell();
    cellColAccount3.Width = CELL_WIDTH;
    foapalrow4.Cells.Add(cellColAccount3);
    var cellColActivity3 = new HtmlTableCell();
    cellColActivity3.Width = CELL_WIDTH;
    foapalrow4.Cells.Add(cellColActivity3);
    var cellColAmount3 = new HtmlTableCell();
    cellColAmount3.Width = CELL_WIDTH;
    foapalrow4.Cells.Add(cellColAmount3);

    boxIndex3 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Height = 0,
        Width = TEXTBOX_WIDTH,
        ID = "boxIndex3foapalrow4"
    };
    cellColIndex3.Controls.Add(boxIndex3);

    boxFund3 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH,
        Height = 0,
        ID = "boxFund3foapalrow4"
    };
    cellColFund3.Controls.Add(boxFund3);

    boxOrganization3 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH,
        Height = 0,
        ID = "boxOrg3foapalrow4"
    };
    cellColOrg3.Controls.Add(boxOrganization3);

    boxAccount3 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH,
        Height = 0,
        ID = "boxAccount3foapalrow4"
    };
    cellColAccount3.Controls.Add(boxAccount3);

    boxActivity3 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH,
        Height = 0,
        ID = "boxActivity3foapalrow4"
    };
    cellColActivity3.Controls.Add(boxActivity3);

    boxAmount3 = new TextBox()
    {
        CssClass = "dplatypus-webform-field-input",
        Width = TEXTBOX_WIDTH,
        Height = 0,
        ID = "boxAmount3foapalrow4"
    };
    cellColAmount3.Controls.Add(boxAmount3);

    foapalHTMLTable.Rows.Add(foapalrow4);

    // Add more rows if necessary (up to 6, if that's the limit? Or create a method that will add another one, no matter how many are required)

    return foapalHTMLTable;
}

更新2

@Jon :正如我在您运行的示例中所看到的，您的代码确实有效。然而，我对它的执行仍然不起作用。我将此代码添加到项目的*.ascx文件中。

CSS

代码语言：javascript
复制
<style>
/* Hide the FOAPAL rows */
.inputTable tr:nth-child(n + 3) {display:none;} 
/* Standardize input width */
.inputTable input[type="text"] {width: 88px;}
</style>

jQuery

代码语言：javascript
复制
$(".expander").click(function () {
    alert("expander click entered - remove this alert after seeing it");
    $('.inputTable').find('tr:hidden:first').show();
});

但是，单击按钮时没有看到警报，尽管我将类(“扩展器”)添加到"+“按钮中，如下所示：

C#

代码语言：javascript
复制
btnAddFoapalRow = new HtmlButton();
btnAddFoapalRow.Attributes["type"] = "button";
btnAddFoapalRow.InnerHtml = "+"; 
btnAddFoapalRow.ID = "btnAddFoapalRow";
btnAddFoapalRow.Attributes["class"] = "expander"; // <= This is how to do it, right?

所以，我补充说：

代码语言：javascript
复制
$(document).on("click", '[id$=btnAddFoapalRow]', function (e) {
    alert("btnAddFoapalRow click entered - remove this alert after seeing it");
    $('.inputTable').find('tr:hidden:first').show();
});

...and将最后两行(第3行和第4行)设置为不可见，如下所示：

代码语言：javascript
复制
foapalrow3.Visible = false;
. . .
foapalrow4.Visible = false;

...but，虽然我现在开始只看到一行，但是当混合"+“按钮时，附加的行没有展开/添加/可视化；是否需要将属性”显示“设置为"none"，或者？？

注意:我已经将表设置为使用"inputTable“类，如下所示：

代码语言：javascript
复制
foapalHTMLTable = new HtmlTable();
foapalHTMLTable.Attributes["class"] = "inputTable";

两个类都出现在呈现的HTML (“查看源”)中，如下所示：

代码语言：javascript
复制
<button id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_btnAddFoapalRow" type="button" class="expander">  
+</button><table border="2" class="inputTable">

...so我不知道问题出在哪里。应该可见的最后一行(第二行)的Textboxes如下所示：

代码语言：javascript
复制
boxAmount1 = new TextBox()
{
    CssClass = "dplatypus-webform-field-input",
    Width = TEXTBOX_WIDTH
};
cellColAmount1.Controls.Add(boxAmount1);

表示为“不可见的”的...whereas是这样的(将高度设置为0，这只是部分工作)：

代码语言：javascript
复制
boxIndex2 = new TextBox()
{
    CssClass = "dplatypus-webform-field-input",
    Width = TEXTBOX_WIDTH,
    Height = 0,
    ID = "boxIndex2foapalrow3"
};
cellColIndex2.Controls.Add(boxIndex2);

表的呈现HTML属于以下类：

代码语言：javascript
复制
<table border="2" class="inputTable">
                        <tr>
                            <td width="88px" style="text-align:center;"><span class="dplatypus-webform-field-label">Index</span></td>
                            <td width="88px" style="text-align:center;"><span class="dplatypus-
webform-field-label" style="text-align:center;">Fund</span></td>

更新3

试图以这种方式纠正问题：

代码语言：javascript
复制
//foapalrow3.Visible = false;
foapalrow3.Attributes["display"] = "none";
. . .
//foapalrow4.Visible = false;
foapalrow4.Attributes["display"] = "none";

...also不起作用(这让我回到了表的原始外观--前两行正常，最后两行可见，但“高度挑战”)。

更新4

我甚至试过这个：

(a)在表中添加一个ID：

代码语言：javascript
复制
foapalHTMLTable.ID = "foapalhtmltable";

(b)当"+“按钮被捣碎时，找到桌子并对其采取行动：

代码语言：javascript
复制
$(document).on("click", '[id$=btnAddFoapalRow]', function (e) {
    alert("btnAddFoapalRow click entered - remove this alert after seeing it");
    //$('.inputTable').find('tr:hidden:first').show();
    $('[id$=foapalhtmltable]').find('tr:hidden:first').show();
});

...but，唉！尽管我大概是这样隐藏着行的：

代码语言：javascript
复制
foapalrow3.Attributes["display"] = "none";
foapalrow4.Attributes["display"] = "none";

.(如前所述)，它仍然不起作用。我需要“边界崩溃”(请参阅o.k.w的答案夏尔)吗？

更新5

我确实注意到，在"foapalrow3“或"foapalrow4”的“查看源”中没有"display:none“--当我用如下代码设置它时，为什么Heckle和Jeckle没有：

代码语言：javascript
复制
foapalrow3.Attributes["display"] = "none";
foapalrow4.Attributes["display"] = "none";
javascript
c#
jquery
html-table
htmltable-control
EN

回答 4

Stack Overflow用户

回答已采纳

发布于 2015-07-08 04:23:37

你可以做所有的客户端。构建整个服务器端的表，不要做任何花哨的事情。

使用CSS隐藏除前2行之外的所有内容：

代码语言：javascript
复制
.inputTable tr:nth-child(n + 3) {display:none;}

现在使用jQuery来显示第一个隐藏行(我已经将click作为一种习惯，可以随意使用on)：

代码语言：javascript
复制
$(".expander").click(function(){
    $('.inputTable').find('tr:hidden:first').slideDown();
});

注意，我已经给按钮一个类expander和表一个类的inputTable

使用html的示例：

​

代码语言：javascript
复制
$(".expander").click(function(){
    $('.inputTable').find('tr:hidden:first').show();
});
代码语言：javascript
复制
/* Hide the rows */
.inputTable tr:nth-child(n + 3) {display:none;} 
/* Standardize input width */
.inputTable input[type="text"] {width: 88px;}
代码语言：javascript
复制
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<button id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_btnAddFoapalRow" type="button" class="expander">+</button>
<table border="2" class="inputTable">
                        <tr>
                            <td width="88px" style="text-align:center;"><span class="dplatypus-webform-field-label">Index</span></td>
                            <td width="88px" style="text-align:center;"><span class="dplatypus-webform-field-label" style="text-align:center;">Fund</span></td>
                            <td width="88px" style="text-align:center;"><span class="dplatypus-webform-field-label" style="text-align:center;">Organization</span></td>
                            <td width="88px" style="text-align:center;"><span class="dplatypus-webform-field-label" style="text-align:center;">Account</span></td>
                            <td width="88px" style="text-align:center;"><span class="dplatypus-webform-field-label" style="text-align:center;">Activity</span></td>
                            <td width="88px" style="text-align:center;"><span class="dplatypus-webform-field-label" style="text-align:center;">Amount</span></td>
                        </tr>
                        <tr>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$ctl130" type="text" class="dplatypus-webform-field-input" style="width:88px;" /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$ctl132" type="text" class="dplatypus-webform-field-input" style="width:88px;" /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$ctl134" type="text" class="dplatypus-webform-field-input" style="width:88px;" /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$ctl136" type="text" class="dplatypus-webform-field-input" style="width:88px;" /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$ctl138" type="text" class="dplatypus-webform-field-input" style="width:88px;" /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$ctl140" type="text" class="dplatypus-webform-field-input" style="width:88px;" /></td>
                        </tr>
                        <tr id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_foapalrow3">
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxIndex2foapalrow3" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxIndex2foapalrow3" class="dplatypus-webform-field-input"  /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxFund2foapalrow3" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxFund2foapalrow3" class="dplatypus-webform-field-input"  /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxOrg2foapalrow3" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxOrg2foapalrow3" class="dplatypus-webform-field-input"  /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxAccount2foapalrow3" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxAccount2foapalrow3" class="dplatypus-webform-field-input" /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxActivity2foapalrow3" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxActivity2foapalrow3" class="dplatypus-webform-field-input"  /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxAmount2foapalrow3" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxAmount2foapalrow3" class="dplatypus-webform-field-input"  /></td>
                        </tr>
                        <tr id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_foapalrow4">
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxIndex3foapalrow4" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxIndex3foapalrow4" class="dplatypus-webform-field-input" /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxFund3foapalrow4" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxFund3foapalrow4" class="dplatypus-webform-field-input"  /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxOrg3foapalrow4" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxOrg3foapalrow4" class="dplatypus-webform-field-input"  /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxAccount3foapalrow4" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxAccount3foapalrow4" class="dplatypus-webform-field-input"  /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxActivity3foapalrow4" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxActivity3foapalrow4" class="dplatypus-webform-field-input"  /></td>
                            <td width="88px"><input name="ctl00$ctl24$g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33$ctl00$boxAmount3foapalrow4" type="text" id="ctl00_ctl24_g_5f3fedca_19f7_4bc3_b84e_efbef0c48a33_ctl00_boxAmount3foapalrow4" class="dplatypus-webform-field-input" /></td>
                        </tr>
                    </table>

​

奖金：一些CSS nth-子信息

更新

将表保留为服务器端，不试图隐藏任何内容--，因此移除所有foapalrow3.Attributes["display"] = "none";、foapalrow3.visible = false;等。我的回答中的CSS为您完成了隐藏行的工作，因此服务器端不需要做任何事情来隐藏行。

只需重复检查，inputTable作为类添加到表中，expander作为类添加到按钮中。

添加类的替代版本是

代码语言：javascript
复制
foapalHTMLTable.Attributes.Add("class","inputTable");

foapalrow4.Attributes["display"] = "none";什么也不做的原因是因为没有html display属性，您可能希望更改条目style属性，因为display是CSS样式的一部分。

票数 2
EN

Stack Overflow用户

发布于 2015-06-27 17:04:51

我建议使用CSS将显示设置为none，而不是更改高度(正如您注意到的那样)。然后在单击+时阻止。

下面是一个jsFiddle，其中on移除隐藏行的css类。

但基本上，它是<tr class="hide-rows">，css是.hide-row {display: none;}，jsQuery使用.hasClass和.removeClass来在单击按钮时删除类。

我还要指出，您已经过度使用内联样式和属性，希望这只是因为您试图解决问题。我做了一个替代版本，我使用了nth-of类型，td、span和输入元素都是基于表中的一个类进行样式设计的。

票数 2
EN

Stack Overflow用户

发布于 2015-06-27 17:10:50

假设所有行都是相同的，您可以尝试在隐藏表中使用模板行，在添加新行时使用jQuery选择器获取该行，如下所示

代码语言：javascript
复制
var newRow = $("#my_template_row").clone();

参见jQuery克隆引用- https://api.jquery.com/clone/

然后，可以将克隆的行附加到可见表中。

票数 2
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/31091241

复制
相关文章

相似问题

领券

腾讯云开发者

扫码关注腾讯云开发者

扫码关注腾讯云开发者

领取腾讯云代金券

热门产品

热门推荐

更多推荐

Copyright © 2013 - 2026 Tencent Cloud. All Rights Reserved. 腾讯云 版权所有 

深圳市腾讯计算机系统有限公司 ICP备案/许可证号：粤B2-20090059 粤公网安备44030502008569号

腾讯云计算（北京）有限责任公司 京ICP证150476号 |  京ICP备11018762号

问题归档专栏文章快讯文章归档关键词归档开发者手册归档开发者手册 Section 归档