c# - Update query updates all records except the name -


i stuck issue updating. when open windows form developed in c# using sql, update updates fields not name. tell me did wrong?

here code

    public void cc()     {         cbbname.items.clear();          sqlcommand cmd = new sqlcommand();         cmd.commandtype = commandtype.text;         cmd.commandtext = "select * bkhurdata";         db.exenonquery(cmd);          datatable dt = new datatable();         sqldataadapter da = new sqldataadapter(cmd);         da.fill(dt);         foreach (datarow dr in dt.rows)         {             cbbname.items.add(dr["name"].tostring());         }     }      private void bkhurupdate_click(object sender, eventargs e)     {         sqlcommand cmd = new sqlcommand();         cmd.commandtype = commandtype.text;         cmd.commandtext = "update bkhurdata set name='" + tbbpname.text + "',details='" + tbbpdetails.text + "',price='" + tbbpprice.text + "',size='" + tbbpsize.text + "', quantity ='"+tbbpquantity.text+"' name = '" + tbbpname.text + "'";         db.exenonquery(cmd);          tbbpname.text = "";         tbbpdetails.text = "";          tbbpprice.text = "";         tbbpsize.text = "";         tbbpquantity.text = "";           cc();          messagebox.show("updated successfully");     }

you updating name name equals tbbpname.text not change name row updating.

private string originalname; public void cc() {     cbbname.items.clear();      sqlcommand cmd = new sqlcommand();     cmd.commandtype = commandtype.text;     cmd.commandtext = "select * bkhurdata";     db.exenonquery(cmd);      datatable dt = new datatable();     sqldataadapter da = new sqldataadapter(cmd);     da.fill(dt);     foreach (datarow dr in dt.rows)     {         cbbname.items.add(dr["name"].tostring());         originalname =  dr["name"].tostring()     } }  private void bkhurupdate_click(object sender, eventargs e) {     sqlcommand cmd = new sqlcommand();     cmd.commandtype = commandtype.text;     cmd.commandtext = "update bkhurdata set name='" + tbbpname.text + "',details='" + tbbpdetails.text + "',price='" + tbbpprice.text + "',size='" + tbbpsize.text + "', quantity ='"+tbbpquantity.text+"' name = '" + originalname+ "'";     db.exenonquery(cmd);      tbbpname.text = "";     tbbpdetails.text = "";      tbbpprice.text = "";     tbbpsize.text = "";     tbbpquantity.text = "";       cc();      messagebox.show("updated successfully"); }

please note should use sqlparameters , not build query string.


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