我的asp页面上有一个GridView。我想通过单击按钮来更改LinqDataSource。这是因为我有2个数据库视图,你必须能够看到其中一个视图,如你所愿。我的问题是,当我试图将GridView绑定到我的任何LinqDataSource时,什么都没有发生。
我的C#代码:
protected void Page_Load(object sender, EventArgs e)
{
this.Grid.DataSource = lqds_Grid1;
this.Grid.DataBind();
}
protected void Button1_Click(object sender, EventArgs e)
{
if (this.Grid.DataSource == lqds_Grid1)
{
this.Grid.DataSource = lqds_Grid2;
this.Grid.DataBind();
}
else
{
this.Grid.DataSource = lqds_Grid1;
this.Grid.DataBind();
}
}我的asp代码:
<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true"
CodeBehind="Default.aspx.cs" Inherits="AddressReporting._Default" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<asp:LinqDataSource ID="lqds_Grid1" runat="server"
ContextTypeName="AddressReporting.MobileGateway" EntityTypeName=""
OrderBy="AdrID, Country" TableName="BarcodeWithLocation">
</asp:LinqDataSource>
<asp:LinqDataSource ID="lqds_Grid2" runat="server"
ContextTypeName="AddressReporting.MobileGateway" EntityTypeName=""
OrderBy="AdrID, Country" TableName="BarcodeWithLocationSorted">
</asp:LinqDataSource>
<asp:GridView ID="Grid" runat="server" AllowPaging="True"
AutoGenerateColumns="False" Height="217px" Width="268px">
</asp:GridView>
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
</asp:Content>发布于 2012-10-31 16:01:37
这是因为加载了page_load方法(事件)工作时间页面,所以它不太正确,所以
protected void Page_Load(object sender, EventArgs e)
{
if(!isPostBack) {
this.Grid.DataSource = lqds_Grid1;
this.Grid.DataBind();
}
}你应该检查页面是否有回发
发布于 2012-10-31 15:58:32
首先,您可以尝试将数据源设置为null,然后再为其赋予新值,并且在分配新值之后,您可以调用datagrid的刷新方法来强制它重新绘制自身
this.Grid.DataSource = null;
this.Grid.DataSource = lqds_Grid1;
this.Grid.DataBind();
this.Grid.DataSource.Refresh();https://stackoverflow.com/questions/13153322
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