Link button won't keep properties

[Michael]

Hello,

I have a LinkButton in a CommandItemTemplate in a RadGrid. I need to set the visibility of this button to false when the user is not authorized to use certain functionality. I do an authorization check in the Page_load method, and set the visibility to false. this works fine. However when the user clicks on one of the column headers(to sort) the button then shows back up. This doesn't happen to two other columns that I also set the visibility on to false. Is there some grid property I need to set to make this work?

ASP.NET:

<

 

CommandItemTemplate>

 

 

<div class="commandItemButtons">

 

 

<asp:LinkButton ID="addButton" runat="server" CommandName="InitInsert">

 

 

<img class="padding" alt="Add Acronym" src="../App_Themes/Default/TelerikControls/Grid/add.png" />Add Acronym</asp:LinkButton>

 

 

</div>

 

 

</CommandItemTemplate>

 

C#:

 

//Makes a reference to the addButton on the Page

 

 

LinkButton addButton = (WebUtilities.FindControl(acronymRadGrid, "addButton") as LinkButton) ;

 

 

//Administrators get to see all of the columns as well as the add button

 

 

if (WebUtilities.IsAdmin(User)) {

 

addButton.Visible =

true;

 

 

foreach (GridColumn column in acronymRadGrid.Columns) {

 

column.Visible =

true;

 

}

}

 

//Regular users only get to see the Acronym and Description columns

 

 

else {

 

addButton.Visible =

false;

 

 

foreach (GridColumn column in acronymRadGrid.Columns) {

 

 

if (column.HeaderText != "Acronym" && column.HeaderText != "Description") {

 

column.Visible =

false;

 

}

}

}

Thanks,

-Mike

[Daniel]

Hello Michael,

Please test the following approach:

ItemCreated event handler (C#)

protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
{
    GridCommandItem item = e.Item as GridCommandItem;
    if (item != null)
        (item.FindControl("myLinkButton") as LinkButton).Visible = false;
}

ItemCreated event handler (VB)

Protected Sub RadGrid1_ItemCreated(ByVal sender As Object, ByVal e As GridItemEventArgs)
    Dim item As GridCommandItem = TryCast(e.Item, GridCommandItem)
    If item <> Nothing Then
        (TryCast(item.FindControl("myLinkButton"), LinkButton)).Visible = False
    End If
End Sub

<CommandItemTemplate>
    <asp:LinkButton ID="myLinkButton" runat="server" Text="ClickMe"></asp:LinkButton>
</CommandItemTemplate>

Regards,
Daniel
the Telerik team

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[Michael]

Daniel,

Thanks for your quick reply. Everything works.

-Mike