.NET TextBox - Handling the Enter Key

user_92023 0
Viewed 57008

What is definitively the best way of performing an action based on the user's input of the Enter key (Keys.Enter) in a .NET TextBox, assuming ownership of the key input that leads to suppression of the Enter key to the TextBox itself (e.Handled = true)?

Assume for the purposes of this question that the desired behavior is not to depress the default button of the form, but rather some other custom processing that should occur.

textbox winforms .net
5 Answers

In cases you want some button to handle Enter while program is executing, just point the AcceptButton property of the form to the button.

E.g.: this.AcceptButton = StartBtn;

user_53035070

Set the KeyPress event like this:

this.tMRPpart.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.tMRPpart_KeyPress);

Then you can perform actions including detecting the 'enter' key in the event -

private void tMRPpart_KeyPress(object sender, KeyPressEventArgs e)
{
    // force any lower case characters into capitals
    if (e.KeyChar >= 'a' && e.KeyChar <= 'z')
        e.KeyChar -= (char)32;

    // If user presses return, tab to next tab stop
    if (e.KeyChar == (char)Keys.Return)
    {
        if (sender is Control)
        {
            // Move to next control
            SelectNextControl((Control)sender, true, true, true, true);
        }
    }
}

In my case I wanted the application to tab to the next field if the user pressed enter.

user_103542660
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