ctrl + a for selecting all text in textbox

Question

3.00/5 (2 votes)

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i have found this for selecting all the text in textbox by pressing ctrl+a for selecting all the text in textbox

C#

private void textBox3_KeyPress(object sender, KeyPressEventArgs e)
        {
             if (e.KeyChar == '\x1')
            {
                ((TextBox)sender).SelectAll();
                e.Handled = true;
            }

        }

but the problem is i have many textbox in my data entry form. so i want to reduce the code. i have to write this code for every keypress event of textbox.
how can i do? writing one code for many textbox for selecting?
sorry for my bad english

Posted 8-Nov-12 2:43am

shaikh-adil

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Comments

ZurdoDev 8-Nov-12 8:47am

Call me crazy but doesn't Ctrl+A always select all in a textbox. You don't need to write code for it.

shaikh-adil 8-Nov-12 8:52am

i want ctrl + a in my software. so i want so i asked

ZurdoDev 8-Nov-12 8:55am

But textboxes do it without you needing to write code.

jim lahey 8-Nov-12 9:00am

I said this too. there's a wheel out there already but it needs reinventing for some reason.

shaikh-adil 8-Nov-12 9:00am

no sir i am doing my project in windows form and in windows form textbox doesnt do it automatically

jim lahey 8-Nov-12 9:07am

Yes it does, I just tried it myself.

ZurdoDev 8-Nov-12 9:07am

Then something is broken. They do select all by default.

shaikh-adil 8-Nov-12 9:13am

i am using vs 2010 and in win xp i dont know how you can do this shortcut. It is not available here. Is it was there so why i didint try that?

3 solutions

Solution 1

You can simply assign this handler to the KeyPress event of any TextBox you need. You've done the hard work by casting the sender parameter.

One question though, do you really need to do this? Ctrl + a is select all just about everywhere..

Posted 8-Nov-12 2:48am

jim lahey

Comments

shaikh-adil 8-Nov-12 8:53am

yup sir. i want this. but i dont think there isnt any solution

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

MT_ · Accepted Answer · 2012-11-08T02:58:00

Solution 3

If you really need to handle the Ctrl+A, you wire key press event of text box to one event handler as shown below in form load.

C#

textBox1.KeyPress += new KeyPressEventHandler(CommonKeyPress);
textBox2.KeyPress += new KeyPressEventHandler(CommonKeyPress);

Then your function below should work great !

C#

private void CommonKeyPress(object sender, KeyPressEventArgs e)
{
  if (e.KeyChar == '\x1')
  {
    ((TextBox)sender).SelectAll();
    e.Handled = true;
  }
}

Milind

Posted 8-Nov-12 2:58am

MT_

Updated 8-Nov-12 22:08pm

v2

Comments

shaikh-adil 8-Nov-12 9:03am

awsome way of wiring dude.
Thanx for helping.
+5

MT_ 8-Nov-12 9:05am

Glad it helped. Couldnt see the vote :(! If it helped, do mark it answer...Milind

bbirajdar 8-Nov-12 9:10am

Never mind.. I will vote for the answer. It seems perfect to me +5

shaikh-adil 8-Nov-12 9:23am

No overload for 'CommonKeyPress' matches delegate 'System.EventHandler' THIS ERROR IS COMMING???

MT_ 9-Nov-12 0:46am

You got it working or still issue ?

MT_ 8-Nov-12 9:07am

Do upvote if it helped..Thanks

shaikh-adil 8-Nov-12 9:08am

vote
Lolz sorry i am from my handset so i cant vote now.
Deffinetly Will do it from my pc
:)

shaikh-adil 9-Nov-12 3:58am

i had wired up the event in form load sir.
But that error is comming can you suggest some more step. Plz help

MT_ 9-Nov-12 4:09am

No worries. Check the updated solution. My bad, little wrong event handler name. I have tested this code and its working now. Cheers - Milind

shaikh-adil 9-Nov-12 9:47am

thank you sir
thank you very much for helping

shaikh-adil 10-Nov-12 1:04am

sir one more question if i have diffrent diffrent method which will run for only one event. For example i have a method ex. Validating event of all the textbox. Then can i decrease code?
I have validation() validation1() and validation2() this will run on diffrent textbox but on same event ex. Textbox1Mousehover textbox2 mousehover textbox3mousehover so how can i do to decrease the code lenght

sariqkhan 10-Nov-12 1:51am

nice one
+5

sariqkhan · Accepted Answer · 2012-11-08T02:48:00

C#

public void select all()
{
   if (e.KeyChar == '\x1')
            {
                ((TextBox)sender).SelectAll();
                e.Handled = true;
            }
}

private void textBox3_KeyPress(object sender, KeyPressEventArgs e)
        {
          selectall();
        }

private void textBox2_KeyPress(object sender, KeyPressEventArgs e)
        {
          selectall();
        }

private void textBox4_KeyPress(object sender, KeyPressEventArgs e)
        {
          selectall();
        }

ctrl + a for selecting all text in textbox

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ctrl + a for selecting all text in textbox

3 solutions

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