c# - Syntax error while trying to update some column of a table -


i have written c# code update column of table of sql server. name of table "finalfee". when trying execute code showing syntax error. why happening?

sqlconnection con23 = new sqlconnection(configurationmanager.connectionstrings["connectionstring"].connectionstring);                     con23.open();     sqlcommand cmd10 = new sqlcommand("update finalfee set amountpaid='" + t26 + "',discountamount='" + t30 + "',grandamount='" + t27 + "',balanceamount='"+t28+"' admno='"+textbox56.text+"')", con23);                         cmd10.executenonquery();

remove last ')' in command.

sqlcommand cmd10 = new sqlcommand("update finalfee set amountpaid='" + t26 + "',discountamount='" + t30 + "',grandamount='" + t27 + "',balanceamount='"+t28+"' admno='"+textbox56.text+"'", con23);

you should using parameters.

edit:

remove ')' here: admno='"+textbox56.text+"')"


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