asp.net/ sql how can i save the text in Server.GetLastError() to DB when it has single quotes inside the string? -

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i have below code , find text value represented in server.getlasterror contains single quotes , breaks sql insert code.

exception ex = server.getlasterror();  stringbuilder thebody = new stringbuilder();         thebody.append("error message: " + ex.tostring() + "\n");  server.clearerror();  try     {         string ssql = "insert pmisweberr values ('" + thebody.tostring() + "', getdate())";          using (system.data.sqlclient.sqlconnection con = star.global.getconnection())         {             system.data.sqlclient.sqlcommand cmd = new system.data.sqlclient.sqlcommand(ssql, con);             cmd.commandtype = system.data.commandtype.text;             cmd.executescalar();         }     }     catch (exception exe) {         response.redirect("~/default.aspx?err="+ exe.message.tostring() );     } 

    string ssql = "insert pmisweberr values (@errval, getdate())";      using (system.data.sqlclient.sqlconnection con = star.global.getconnection())     {         system.data.sqlclient.sqlcommand cmd = new system.data.sqlclient.sqlcommand(ssql, con);         cmd.commandtype = system.data.commandtype.text;         cmd.parameters.addwithvalue( "@errval", thebody.tostring() );         cmd.executescalar();     }

you should use parameters in sql statements. not handle cases such strings single-quotes, helps protect against sql injection attacks.


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