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Gopal Rao
Mumbai, Maharashtra, India
Passcode:
Exception handling in asp.net c# with example
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Note 
It has try block ,Catch block ,finally(optional) block
  1. type all the code inside try block if any error occured the catch block code will run.Handle the error in catch block occording to your need.
  2. If no error in try block the catch block will not run.
  3. finally block codes will run after run the try block code .codes inside the finally block must run,not like catch block.
  4. codes should be run ,if you type the codes inside the finally block.
Syntax
	function()
	       {
	           try
	           {
	              //statements
	           }
	           catch
	           {
	               //statements
	           }
	           finally
	           {
	               //statements
	           }
	       }
Example
	public DataSet dalReportSear(boAddCds date)
	       {
	           try
	           {
	               string datestring = date.dt.Date.ToString("yyyy-MM-dd");
	               conn.Open();
	               SqlCommand cmd = new SqlCommand("select * from cdMove where issuedOn='" + datestring + "'", conn);
	               SqlDataAdapter da = new SqlDataAdapter(cmd);
	               DataSet ds = new DataSet();
	               da.Fill(ds);
	               return ds;
	           }
	           catch (Exception ex)
	           {
	               throw ex;
	           }
	           finally
	           {
	               conn.Close();
	           }
	       }
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