how to restrict the length of entries in text box to its width

Question

c#: By default text box accepts n number of entries,

I want to restrict the entries to its width

Is there any property in text box through which i can achive this,

Answer 1

No, to do this you will have to calculate the maximium number of characters they can enter by the text box width manually I'm afraid. You'll also have to take into consideration the font and font size too

Answer 2

default it accepts only 32767 of chars.

You can set the MaxLength property of the textbox in the textbox property

Hope you are using windows forms

Answer 3

You could compute the width of the text to be drawn and if it exceeds the textbox width then return.

HERE you can find a great example.

Answer 4

Assuming WinForms, try this:

private bool textExceedsWidth;

private void textBox1_KeyDown(object sender, KeyEventArgs e)
{
    textExceedsWidth = false;

    if (e.KeyCode == Keys.Back)
        return;

    Size textSize = TextRenderer.MeasureText(textBox1.Text, textBox1.Font);

    if (textBox1.Width < textSize.Width)
        textExceedsWith = true;
}

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
    if (textExceedsWidth)
        e.Handled = true;
}