Hide Specific Auto-Generated Columns

[Brett]

I am auto-generating my columns, however I want to hide the "ID" column.  Can this be done without specifically defining the column ?

[Shinu]

Hi,

You can hide the AutoGeneratedColumns in the ColumnCreated event as shown below.

CS:

 protected void RadGrid1_ColumnCreated(object sender, GridColumnCreatedEventArgs e)
    {
        if (e.Column is GridBoundColumn)
        {
            GridBoundColumn col = (GridBoundColumn)e.Column;
            if (col.UniqueName == "ID")
            {
                col.Visible = false;
            }
        }
    }

Thanks
Shinu.

[Brett]

Thanks Shinu, works great!

[Liza]

Hi!! I hope you can help me!!

I was trying to do what you said before but, I always got the same error:

Error de servidor en la aplicación '/GP'.

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Colección modificada; puede que no se ejecute la operación deenumeración.

Descripción:Excepción no controlada al ejecutar la solicitud Web actual. Revise elseguimiento de la pila para obtener más información acerca del error y dónde seoriginó en el código.

Detalles de la excepción:System.InvalidOperationException: Colección modificada; puede que no seejecute la operación de enumeración.

Error de código fuente:

Se ha generado una excepción no controlada durante la ejecución de la solicitud Web actual. La información sobre el origen y la ubicación de la excepción pueden identificarse utilizando la excepción del seguimiento de la pila siguiente.

Seguimiento de lapila:

[InvalidOperationException: Colección modificada; puede que no se ejecute la operación de enumeración.]   System.Web.UI.ControlCollectionEnumerator.MoveNext() +8648494   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +143   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19   System.Web.UI.WebControls.WebControl.RenderContents(HtmlTextWriter writer) +10   Telerik.Web.UI.RadCompositeDataBoundControl.RenderContents(HtmlTextWriter writer) +46   Telerik.Web.UI.RadGrid.RenderContents(HtmlTextWriter writer) +56   Telerik.Web.UI.RadGrid.Render(HtmlTextWriter writer) +174   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25   Telerik.Web.UI.ControlRenderer.Render(HtmlTextWriter writer) +84   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19   System.Web.UI.Control.Render(HtmlTextWriter writer) +10   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19   System.Web.UI.UpdatePanel.RenderChildren(HtmlTextWriter writer) +238   System.Web.UI.Control.Render(HtmlTextWriter writer) +10   System.Web.UI.UpdatePanel.Render(HtmlTextWriter writer) +35   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25   Telerik.Web.UI.PreControlToAjaxify.Render(HtmlTextWriter writer) +112   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19   System.Web.UI.Control.Render(HtmlTextWriter writer) +10   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25   Telerik.Web.UI.ControlRenderer.Render(HtmlTextWriter writer) +84   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19   System.Web.UI.Control.Render(HtmlTextWriter writer) +10   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19   System.Web.UI.UpdatePanel.RenderChildren(HtmlTextWriter writer) +238   System.Web.UI.Control.Render(HtmlTextWriter writer) +10   System.Web.UI.UpdatePanel.Render(HtmlTextWriter writer) +35   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25   Telerik.Web.UI.PreControlToAjaxify.Render(HtmlTextWriter writer) +112   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19   System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +163   System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +32   System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +51   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99   System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +40   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19   System.Web.UI.Control.Render(HtmlTextWriter writer) +10   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19   System.Web.UI.Page.Render(HtmlTextWriter writer) +29   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25   Telerik.Web.UI.RadAjaxControl.RenderPageInAjaxMode(HtmlTextWriter writer, Control page) +640   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +256   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19   System.Web.UI.Page.Render(HtmlTextWriter writer) +29   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1266

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Información de versión: Versión de Microsoft .NETFramework:2.0.50727.3053; Versión ASP.NET:2.0.50727.3053 

thanks!!