Custom Error Message in Hyperlink field of the Griview

Question

hi Experts I have the following code on my gridview in an aspx page

<asp:HyperLinkField DataNavigateUrlFields="ProposalPath" DataTextField="ProposalPath" DataTextFormatString="View Proposal" Target="_blank" />
<asp:BoundField DataField="ProposalPath" HeaderText="ProposalPath" ReadOnly="True" SortExpression="ProposalPath" Visible="False" />

I have binded the gridview to a sql datasource and when the user clicks the hyperlink field in the gridview a document would open if its a valid url .If it is a invalid url the error message would pop up saying
"Cannot find file: url ,Make sure the path or internet address is correct."

My Requirement is to amend the error message to a custom error message by using some script or any way possible.

Please Suggest .

Thank you

Suthish Nair · Answer

use the onclick event of hyperlink and call a java script method (window.open) which will open an .aspx page having the logic to check the file exists or not. remember to pass the file name to .aspx page.

karthik v · Answer

thank you suthish. that worked out pretty good.