Member Avatar for costavo

i am editing a devolped solution the problem is that check boxes are need in the datagrid but data is viewed in the datagrid without checkbox which exist but not viewed

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  • Latest Post Latest Post by kapil.goyal

Dani AI

Generated

Brief diagnosis and focused checklist based on the symptom and the replies from and .

Common causes (check in this order)

  • Confirm the CheckBox is inside an ItemTemplate (not only an EditItemTemplate). Edit templates render only when the row is in edit mode.
  • Confirm the CheckBox has runat="server" if it is intended to be a server control.
  • Verify no Visible="false" on the column (TemplateColumn/TemplateField) or on the CheckBox itself, either in markup or set in code-behind (Page_Load, ItemDataBound, etc.).
  • If AutoGenerateColumns="true" is being used, TemplateColumns may not be applied as expected. Set AutoGenerateColumns="false" and declare columns explicitly.
  • If columns are added dynamically, ensure they are recreated on every postback before calling DataBind() (dynamic controls must be recreated early in the page lifecycle).
  • Inspect the rendered HTML (view source / browser dev tools) to see if input type="checkbox" exists but is hidden by CSS (display:none, visibility:hidden, width/overflow, or a z-index issue).
  • Check for any ItemDataBound/ItemCreated handlers that may hide or remove the CheckBox at runtime.

Small VB.NET example (DataGrid TemplateColumn + ItemDataBound)

<asp:DataGrid id="dg" runat="server" AutoGenerateColumns="False">
  <asp:TemplateColumn>
    <ItemTemplate>
      <asp:CheckBox ID="chkSelect" runat="server" />
    </ItemTemplate>
  </asp:TemplateColumn>
</asp:DataGrid>
Protected Sub dg_ItemDataBound(sender As Object, e As DataGridItemEventArgs) _
    Handles dg.ItemDataBound
  If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then
    Dim chk As CheckBox = CType(e.Item.FindControl("chkSelect"), CheckBox)
    If chk IsNot Nothing Then chk.Visible = True
  End If
End Sub

Relevant documentation: DataGrid Class and TemplateColumn Class.

Recommended Answers

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Member Avatar for nikkiH

Um, what?
Can you form that question a little better?

Member Avatar for kapil.goyal

in which template u hav taken the checkboxes in datagrid .if u take them in ItemTemplate then set visible attribute to false

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