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Disable a Hyperlink in a gridview

Posted on 2010-09-10
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Last Modified: 2012-05-10
Hello All,
How can I disable <asp:HyperLinkField control in a gridview based on a session["role"].
Thanks
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Question by:Star79
  • 2
3 Comments
 
LVL 30

Accepted Solution

by:
MlandaT earned 500 total points
ID: 33648575
Option 1:
<asp:TemplateField HeaderText="Link">
    <ItemTemplate>
      <asp:HyperLink ID="myHyperLinkControl" Runat="Server" Enabled='<%# (session["role"] = "Admin") %>' />
    </ItemTemplate>
</asp:TemplateField>  

Option 2:
1. Convert the column into a templatecolumn (I assume here that you eventually give the hyperlink control an ID of 'myHyperLinkControl')
2. Use the RowDataBound event
3. In rowdatabound event, find the control and do what you want with it

  Sub CustomersGridView_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)

    If e.Row.RowType = DataControlRowType.DataRow Then
   
         dim myLink as HyperLink = e.Row.FindControl("myHyperLinkControl")
        if myLink isnot nothing then
             myLink.Enabled = (session["role"] = "Admin")
        end if
       
    End If
   
  End Sub
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Author Comment

by:Star79
ID: 33648773
Hello,
Without converting into template column can we do this?
Thanks
0
 
LVL 30

Expert Comment

by:MlandaT
ID: 33648852
In the RowDataBound event above... you can just use this syntax:

dim myLink as HyperLink = e.Row.Cells(indexOfTheHyperLinkColumn).Controls(0)
if myLink isnot nothing then
     myLink.Enabled = (session["role"] = "Admin")
end if

NOTES:
indexOfTheHyperLinkColumn based on the position of the column in the gridview. First index is 0.
Please just check whether the HyperLink control is Controls(0) or otherwise Controls(1)... dont remember which is which
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