Call Keypress Event in C#.net windows Application...

Question

Hi frnd's... Can anyone say how to call a keypress event of a textbox in a button click event in windows application ... Tks in adv... G.Sam...

Mohit Kumar Tayal · Answer

If i am not wrong than you must want to call keypresseventhandler for each character in the textbox. then you can call this method in a for loop with passing argument as sender same as caller and keypresseventargs as new keypresseventargs(char c) by providing char c the value of currently iterating character. example : textbox id :textbox1 button id :button1 private void button1_Click(object sender, EventArgs e) { if (textBox1.Text != "") { foreach (char c in textBox1.Text.ToCharArray()) textBox1_KeyPress(sender, new KeyPressEventArgs(c)); } } private void textBox1_KeyPress(object sender, KeyPressEventArgs e) { MessageBox.Show("hello"); } now one point is this code for keypresseventhandler also run on every time when you press a key when you are in textbox1 focus. You can disable this by deleting delegate entry from the code on behond the initializecomponent. Also one solution is that you choose this method textbox1_Key_Press(object sender,KeyPressEventArgs e) by typing manually not by double clicking it in event property dialog box for the textbox.

Niradhip Chakraborty · Answer

You can call the keypress events in following way for textbox. Say my textbox id is txtZip. Here inside keypress event I am validating whether the input string is digit or not. Now my question is why do you want to call keypress events in button function,then what is the meaning of keypress. If you really want to call some function in button click event, then write a separate function and call it inside button click event private void txtZip_KeyPress( object sender, KeyPressEventArgs e) { if ( char .IsDigit(e.KeyChar) || char .IsControl(e.KeyChar)) { e.Handled = false ; } else { e.Handled = true ; } }

Call Keypress Event in C#.net windows Application...

Answers (2)