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I share my question, I have a numericUpDown and I want what to write a number, if this is greater than 10 digits block or disable writing. Below I leave an example of what I've been up to now, but that's where I "get".

Thank you in advance for your opinions.

private void nudNumSeguro_ValueChanged(object sender, EventArgs e)
{
     if(this.Text.Length == 10)
     {

     }
}

c#

asked by Lorenzo Molina 14.03.2018 в 22:57

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1 answer

Error executing react-native run-android Error creating foreign key of a table

score 1 · Accepted Answer

You can check it in the event KeyPress : if the length is greater than or equal to 10 and it is not a control character (to allow deletion) the key is canceled:

private void numericUpDown1_KeyPress(object sender, KeyPressEventArgs e)
{
    e.Handled = ((NumericUpDown) sender).Text.Length >= 10
                && !char.IsControl(e.KeyChar);
}