Grid View for ASP.NET Web Forms - How to add a column if the AutoGenerateColumns property is set to true

This example demonstrates how to add a column to the grid when the AutoGenerateColumns property is enabled.

Overview

When the AutoGenerateColumns property is set to true, handle the DataBound event to add a column to the Grid View control. Before you add a column, check whether this column already exists to avoid duplicate columns.

<dx:ASPxGridView ID="ASPxGridView1" runat="server" AutoGenerateColumns="True" 
    KeyFieldName="CategoryID" ondatabound="ASPxGridView1_DataBound">
</dx:ASPxGridView>

protected void ASPxGridView1_DataBound(object sender, EventArgs e) {
    if (grid.Columns.IndexOf(grid.Columns["CommandColumn"]) != -1)
        return;
    GridViewCommandColumn col = new GridViewCommandColumn();
    col.Name = "CommandColumn";
    // ...
    grid.Columns.Add(col);
}

Files to Review

• Default.aspx (VB: Default.aspx)
• Default.aspx.cs (VB: Default.aspx.vb)

More Examples

• Grid View for ASP.NET MVC - How to add a column if the AutoGenerateColumns property is set to true

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