如何导出到pdf、word、excel文件

Question

我使用ASP.net MVC 3，我有这两个需求。首先，在我的应用程序中创建发票。我想导出数据到pdf，word，excel文件。我下载了itextsharp，有人能告诉我，除了ui到pdf、word和excel文档中的数据，还有其他的替代方法吗？第二，我需要在单击“打印”按钮后打印文档。如何将打印机与导出文档中的“打印”按钮连接？

Answer 1

你可以用一个片段。

This one很棒。看一看。

这是使用的一个例子：

<asp:GridView ID="GridView1" runat="server"
  AutoGenerateColumns = "false" Font-Names = "Arial"
  Font-Size = "11pt" AlternatingRowStyle-BackColor = "#C2D69B" 
  HeaderStyle-BackColor = "green" AllowPaging ="true"  
  OnPageIndexChanging = "OnPaging" >
 <Columns>
  <asp:BoundField ItemStyle-Width = "150px" DataField = "CustomerID"
  HeaderText = "CustomerID" />
<asp:BoundField ItemStyle-Width = "150px" DataField = "City"
  HeaderText = "City"/>
<asp:BoundField ItemStyle-Width = "150px" DataField = "Country"
  HeaderText = "Country"/>
<asp:BoundField ItemStyle-Width = "150px" DataField = "PostalCode"
  HeaderText = "PostalCode"/>
 </Columns>
</asp:GridView>

以C#为例

protected void btnExportPDF_Click(object sender, EventArgs e)
{
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition",
 "attachment;filename=GridViewExport.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
GridView1.AllowPaging = false;
GridView1.DataBind();
GridView1.RenderControl(hw);
StringReader sr = new StringReader(sw.ToString());
Document pdfDoc = new Document(PageSize.A4, 10f,10f,10f,0f);
HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
pdfDoc.Open();
htmlparser.Parse(sr);
pdfDoc.Close();
Response.Write(pdfDoc);
Response.End(); 
}

excel示例的C#

protected void btnExportExcel_Click(object sender, EventArgs e)
{
Response.Clear();
Response.Buffer = true;

Response.AddHeader("content-disposition",
"attachment;filename=GridViewExport.xls");
Response.Charset = "";
Response.ContentType = "application/vnd.ms-excel";
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);

GridView1.AllowPaging = false;
GridView1.DataBind();

//Change the Header Row back to white color
GridView1.HeaderRow.Style.Add("background-color", "#FFFFFF");

//Apply style to Individual Cells
GridView1.HeaderRow.Cells[0].Style.Add("background-color", "green");
GridView1.HeaderRow.Cells[1].Style.Add("background-color", "green");
GridView1.HeaderRow.Cells[2].Style.Add("background-color", "green");
GridView1.HeaderRow.Cells[3].Style.Add("background-color", "green");  

for (int i = 0; i < GridView1.Rows.Count;i++ )
{
GridViewRow row = GridView1.Rows[i];

//Change Color back to white
row.BackColor = System.Drawing.Color.White;

//Apply text style to each Row
row.Attributes.Add("class", "textmode");

//Apply style to Individual Cells of Alternating Row
if (i % 2 != 0)
{
    row.Cells[0].Style.Add("background-color", "#C2D69B");
    row.Cells[1].Style.Add("background-color", "#C2D69B");
    row.Cells[2].Style.Add("background-color", "#C2D69B");
    row.Cells[3].Style.Add("background-color", "#C2D69B");  
}
}
GridView1.RenderControl(hw);

//style to format numbers to string
string style = @"<style> .textmode { mso-number-format:\@; } </style>"; 
Response.Write(style);
Response.Output.Write(sw.ToString());
Response.Flush();
Response.End();
}