Hide GridView Columns In ASP.NET

This example shows how to Hide GridView Columns in normal mode in asp.net and set them to visible when gridview is in edit mode. I am hiding the ID column when gridview loads and setting this column to visible when user clicks on the edit link button.

For this i am using ObjectDataSource to populate the grid and hiding columns in RowDataBound Event.

<asp:GridView ID="GridView1" runat="server"

              AutoGenerateColumns="False"

              DataSourceID="ObjectDataSource1"

              OnRowDataBound="GridView1_RowDataBound"

              OnRowEditing="GridView1_RowEditing">

<Columns>

<asp:CommandField ShowEditButton="true"/>

<asp:TemplateField HeaderText="ID">

<ItemTemplate>

<asp:Label ID="lblID" runat="server" Text='<%#Eval("ID")%>'/>

</ItemTemplate>

<EditItemTemplate >

<asp:TextBox ID="txtID" Visible="true" runat="server"

             Text='<%#Eval("ID")%>'/>

</EditItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Name">

<ItemTemplate>

<asp:Label ID="lblName" runat="server" Text='<%#Eval("Name")%>'/>

</ItemTemplate>

<EditItemTemplate >

<asp:TextBox ID="txtName" Visible="true" runat="server"

             Text='<%#Eval("Name")%>'/>

</EditItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Location">

<ItemTemplate>

<asp:Label ID="lblLocation" runat="server" 

           Text='<%#Eval("Location")%>'/>

</ItemTemplate>

<EditItemTemplate >

<asp:TextBox ID="txtLocation" Visible="true" runat="server"

             Text='<%#Eval("Location")%>'/>

</EditItemTemplate>

</asp:TemplateField>

</Columns>

</asp:GridView>

<asp:ObjectDataSource ID="ObjectDataSource1" runat="server"

                      InsertMethod="Insert"

                      OldValuesParameterFormatString="original_{0}"

                      SelectMethod="GetData"

                      TypeName="DataSet1TableAdapters.TestTableAdapter"

                      UpdateMethod="UpdateQuery">

<InsertParameters>

<asp:Parameter Name="ID" Type="Decimal" />

<asp:Parameter Name="Name" Type="String" />

<asp:Parameter Name="Location" Type="String" />

</InsertParameters>

<UpdateParameters>

<asp:Parameter Name="Name" Type="String" />

<asp:Parameter Name="Location" Type="String" />

<asp:Parameter Name="ID" Type="Decimal" />

</UpdateParameters>

</asp:ObjectDataSource>

We need to write following code to hide columns in RowDataBound event

C# CODE

---

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        //Check whether gridview is in edit mode or nor 
        if (GridView1.EditIndex >= 0)
        { return; }
        //Check row state of gridview whether it is data row or not
        if ((e.Row.RowState == DataControlRowState.Normal
        || e.Row.RowState == DataControlRowState.Alternate)
        && (e.Row.RowType == DataControlRowType.DataRow
        || e.Row.RowType == DataControlRowType.Header))
        {
            //Now set the visibility of cell we want to hide to false 
            e.Row.Cells[1].Visible = false;
        }
    }

    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {
        GridView1.EditIndex = e.NewEditIndex;
        GridView1.DataBind();
    }

VB.NET

---

Protected Sub GridView1_RowDataBound(sender As Object, e As GridViewRowEventArgs)
 'Check whether gridview is in edit mode or nor 
 If GridView1.EditIndex >= 0 Then
  Return
 End If
 'Check row state of gridview whether it is data row or not
 If (e.Row.RowState = DataControlRowState.Normal OrElse e.Row.RowState = DataControlRowState.Alternate) AndAlso (e.Row.RowType = DataControlRowType.DataRow OrElse e.Row.RowType = DataControlRowType.Header) Then
  'Now set the visibility of cell we want to hide to false 
  e.Row.Cells(1).Visible = False
 End If
End Sub

Protected Sub GridView1_RowEditing(sender As Object, e As GridViewEditEventArgs)
 GridView1.EditIndex = e.NewEditIndex
 GridView1.DataBind()
End Sub

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