Textbox focus on keypress

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I am developing calculator program.As like windows calcultor on press its textbox get focused and cause to input. In code it dont get focused on key press.
I need manually click on textbox and then It take input from keyboard.

C#

private void onKeyPress(object sender, KeyPressEventArgs e)
      {
          if (!char.IsControl(e.KeyChar) &&  char.IsDigit(e.KeyChar) &&(e.KeyChar != '.'))
          {
              e.Handled = true;
          }

          // only allow one decimal point
          if ((e.KeyChar == '.') && ((sender as TextBox).Text.IndexOf('.') > -1))
          {
              e.Handled = true;
          }
         txtResult.text = e.keyChar;
      }

still it dont get focus on keypress.

Posted 16-Jun-15 18:45pm

Sarita S

Updated 18-Jun-15 21:44pm

v2

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Comments

Ralf Meier 17-Jun-15 1:03am

For my understanding :
You don't press a key inside the TextBox ... you press a Button and after this you want to have the Focus on the TextBox ?

2 solutions

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Abhishek Vats · Answer 1 · 2015-06-16T18:59:00

Solution 1

please call a function followed by onkeypress Attribute, Something like this:

or alternately:

function myFunction()
{
textbox1.focus();
}

Posted 16-Jun-15 18:59pm

Abhishek Vats

Santosh K. Tripathi · Answer 2 · 2015-06-16T19:04:00

Solution 2

if your calculator program in a web page then write java script function.

JavaScript

$(document).ready(function () {
 textbox1.focus();
 });

for window application this link may be useful.

http://stackoverflow.com/questions/6597196/how-to-put-focus-on-textbox-when-the-form-load[^]

Posted 16-Jun-15 19:04pm

Santosh K. Tripathi

Updated 16-Jun-15 19:06pm

v2

Comments

Sarita S 17-Jun-15 1:12am

It is windows form application.