How To Make Custom Close Button As Efficient As Windows Close Button In C#,Winforms

CHAITANYA KIRAN KASANI

I Have A TextBox And Wrote TextBo1_Leave Event That When The TextBox Is Empty It Shows A Message 'TextBox Is Empty'And Focus Returns To The TextBox...I Had A Button 'Close' To Close The Form..For That I Had Wrote Button_Click Event To Close The Form 'this.Close();'..Now My Problem Is That When I Put The Cursor On The TextBox And makes The TextBox Empty And Try To Close The Form By Button Clicking..Then It Shows The Message 'TextBox Is Empty' And The Form Is Not Closing...But When I Click On 'x' Button Of The Form Then It Is Closing Without Asking Any Message..

Please Help Me To Make My Close Button As Efficient As Windows Close Button In C#, Winforms.

3 Replies

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nallya13y ago
Your requirement is to close the form after button click without asking for "Empty message" if u use above code it will also not also for any message and close the form as efficiently as windows close button,so why u want to cancel the event handler

Now My Problem Is That When I Put The Cursor On The TextBox And makes The TextBox Empty And Try To Close The Form By Button Clicking..Then It Shows The Message 'TextBox Is Empty' And The Form Is Not Closing...But When I Click On 'x' Button Of The Form Then It Is Closing Without Asking Any Message..

if u want to cancel event handler then u can refer:

http://stackoverflow.com/questions/91778/how-to-remove-all-event-handlers-from-a-control
CHAITANYA KIRAN KASANI13y ago
My Requirement Is Not That SHowing Message In The Label...My Requirement Is To Close The Form By Cancelling The EventHandler.
nallya13y ago
Try to use like this:

private void textBox1_Leave(object sender, EventArgs e)
{
if (textBox1.Text != null)
{
label1.Text = "textbox cant empty";
}
else
{
//Do Code u want
}
}

private void button1_Click(object sender, EventArgs e)
{
this.Close();
}