how select all text in textbox

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Hello All

i have windows App
some text boxs
i tab between textbox by this code

private void AstTxt_KeyDown(object sender, KeyEventArgs e)
  {
     if (e.KeyCode == Keys.Enter)
      {
         AltTxt.Focus();

       } 
   }

but i want when go next text box
select data in this textbox not delete it

Posted 17-Mar-15 10:02am

ramadan2

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Sergey Alexandrovich Kryukov 17-Mar-15 16:37pm

TextBox? Which one? Full type name, please.
—SA

2 solutions

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macika123 · Accepted Answer · 2015-03-17T10:12:00

Solution 1

Hello,
try the following:

private void AstTxt_KeyDown(object sender, KeyEventArgs e)
  {
     if (e.KeyCode == Keys.Enter)
      {
         AltTxt.Focus();

         AltTxt.SelectionStart = 0;
         AltTxt.SelectionLength = AltText.Text.Length;

       } 
   }

Posted 17-Mar-15 10:12am

macika123

v2

Comments

ramadan2 17-Mar-15 16:20pm

thanx dear

macika123 17-Mar-15 16:24pm

You're welcome ;-)!

Afzaal Ahmad Zeeshan · Accepted Answer · 2015-03-17T10:16:00

TextBox, under Focus[^] event doesn't delete the text inside it. It just changes the focus from other controls, to this one.

Secondly, to select entire text inside the TextBox, you can use the Selection (SelectionStart[^] and SelectionLength[^]) properties, to enter the characters that you want to select in the current selection; read more on MSDN links. Since you want to select all of them, try this,

C#

// Set the focus
AltText.Focus();

// Since beginning; zeroth character
AltTxt.SelectionStart = 0;
// Upto the last character.
AtlTxt.SelectionLength = textbox.Text.Length;

Above code would select the text from the control when you're inside it. There is no code to delete it, so it won't delete anything from the TextBox.