c# - Is it possible to textchanged event to occur only when textBox is focused? -


i have method this. 

    public void checkemployee()     {             connectionstringsettings myconnectionstring = configurationmanager.connectionstrings["librarysystem.properties.settings.libraryconnectionstring"];             using (sqlconnection mydatabaseconnection = new sqlconnection(myconnectionstring.connectionstring))             {                 mydatabaseconnection.open();                 using (sqlcommand mysqlcommand = new sqlcommand("select * employee employeeid = '" + employeeidtextbox.text + "' ", mydatabaseconnection))                 using (sqldatareader sqlreader = mysqlcommand.executereader())                 {                      if (sqlreader.read())                     {                         string employeeid = sqlreader.getint32(0).tostring();                         string name = sqlreader.getstring(1);                         string address = sqlreader.getstring(2);                          employeeidtextbox.text = employeeid;                         nametextbox.text = name;                         addresstextbox.text = address;                     }                 }             }      }

and have write code this.

private void employeeidtextbox_textchanged(object sender, eventargs e) {     checkbook();     nametextbox.clear();     addresstextbox.clear(); }  private void nametextbox_textchanged(object sender, eventargs e) {     checkbook();     employeetextbox.clear();     addresstextbox.clear(); }

the problem nametextbox_textchanged triggers when input in employeeidtextbox because method gets value database , display nametextbox.

is possible nametextbox_textchanged occur when nametextbox focused? , vice versa.

thank :)

off top of head, try ignoring textchanged event if nametextbox not focused - this:

private void nametextbox_textchanged(object sender, eventargs e) {     if (nametextbox.isfocused)     {         checkbook();         employeetextbox.clear();         addresstextbox.clear();     } }

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