How to handle unique constraint exception in datatable while adding record in C#

Question

I have added unique constraint to datatable like this

DataTable dtemp
private void TempTable() 
{
 dtemp = new DataTable(\"Temp\");
 dtemp.Columns.Add(new DataCo         


        

Answer 1

This is not a SQLException. Change your handling to be more specific around the exception. If you can't resolve that - change it to a regular Exception.

private void GetTable()
    {
        try
        { 
            dtemp.Rows.Add(mTable.TableID,mTable.Capacity);
        }
        catch(Exception ee)
        {                
            MessageBox.Show("Exception: " + ee.Message);
        } 

I would avoid using exceptions in this scenario. This is really a bad pattern. It is especially painful to debug when you have all exceptions turned on. A better practice is to check if the record exists, then add if it doesn't.

Think of exceptions as edge cases for unexpected events - not regular coding practices.