Error trapping of datasource control

Hello,

I encountered an interesting situation. I have a gridview and a sqldatasource. It has delete function. When I delete a record an error of foreign key violation is raised. I would like to trap this error and give a user friendly message to the user.

If I use ADO.Net I can use Try/Catch, but it seems there is no way to do the same thing using datasource. Anyone knows?

Thank you,

J

void CustomersGridView_RowDeleted(Object sender, GridViewDeletedEventArgs e)
 {
// Display whether the delete operation succeeded.
if(e.Exception ==null)
 {
 Message.Text ="Row deleted successfully.";
 }
else
 {
 Message.Text ="An error occurredwhile attempting to delete the row.";
 e.ExceptionHandled =true;
 }
 }

Take a look@.MSDNhttp://msdn2.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.rowdeleted.aspx

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Hosam,

Thank you for the reply. It helps, but I would like to get more specific message and give users a friendly message based on that. That is, how can I know the exception is raised due to foreign key violation specifically for example?

Or is there any way to trap the error message passed by a stored procedure?

Thank you,

J

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What about check forConstraintException

http://msdn2.microsoft.com/en-us/library/system.data(VS.71).aspx

http://msdn2.microsoft.com/en-us/library/system.data.constraintexception(VS.71).aspx

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That is a good suggestion. I will read them.

By the way, thinking for a little time your previous answer does not make sense. The exception is handled after row is ALREADY deleted?

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But note that if this exception was thrown nor record will be deleted as the constraint will prevent this.

So if the exception exists no records actually deleted.

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Thank you, Hosam.

I tested with detailsview's inserted event, but it did not work. However, what you were saying makes sense as well. I will look into details. If I find more new things, I wll post it here. Thank you.

J