C# Syntax Error in INSERT INTO statement C# - 


if (txtusername.text != "")         {             string q = "insert info(username) values ('" + txtusername.text.tostring() + "')";             dosomething(q);             txtusername.text = "";         }         else         {             messagebox.show("please complete neccessary information");         }         if (txtpassword.text != "")         {             string = "insert info(password) values ('" + txtpassword.text.tostring() + "')";             dosomething(a);             txtusername.text = "";          }         else         {             messagebox.show("please complete neccessary information");         }  private void dosomething(string q) {     try     {         cn.open();         cmd.commandtext = q;         cmd.executenonquery();         cn.close();      }     catch (exception e)     {         cn.close();         messagebox.show(e.message.tostring());     } }

every time run show error. dont know how fix it. code should record data put in textbox ms access database. plz helpp

presumably, you've initialized cn somewhere doing like

cn = new sqlconnection();

you need pass connection string database constructor:

cn = new sqlconnection("your connection string here");

or set sometime later, before connect:

cn.connectionstring = "your connection string here";

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