asp.net – 以编程方式将Textbox TemplateField列添加到GridView

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如何从代码后面向GridView添加TextBox列?

解决方法

使用 TemplateField并将TextBox添加到ItemTemplate / EditItemTemplate.
  1. <ItemTemplate>
  2. <asp:TextBox ID="TxtFirstName" runat="server" Text='<%# Bind("FirstName") %>'></asp:TextBox>
  3. </ItemTemplate>

您可以在aspx上绑定它,如上例或GridView.RowDataBound中所示:

  1. Private Sub GridView1_RowDataBound(ByVal sender As Object,ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
  2. Select Case e.Row.RowType
  3. Case DataControlRowType.DataRow
  4. Dim dr As DataRow = DirectCast(DirectCast(e.Row.DataItem,DataRowView).Row)
  5. Dim TxtFirstName As TextBox = DirectCast(e.Row.FindControl("TxtFirstName"),TextBox )
  6. TxtFirstName.Text = dr("FirstName").ToString
  7. End Select
  8. End Sub

编辑:这是一个关于如何动态添加TemplateField的简单示例:

  1. Protected Sub Page_Load(ByVal sender As Object,ByVal e As EventArgs) Handles MyBase.Load
  2. If Not IsPostBack Then
  3. Dim txtColumn As New TemplateField
  4. txtColumn.ItemTemplate = New TextColumn
  5. Me.GridView1.Columns.Add(txtColumn)
  6. End If
  7. End Sub
  8.  
  9. Class TextColumn
  10. Implements ITemplate
  11.  
  12. Public Sub InstantiateIn(ByVal container As System.Web.UI.Control) Implements System.Web.UI.ITemplate.InstantiateIn
  13. Dim txt As New TextBox
  14. txt.ID = "MyTextBox"
  15. container.Controls.Add(txt)
  16. End Sub
  17. End Class

http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.templatefield.templatefield.aspx

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