Question

The title is a little vague. I have a form with several textboxes that require user input. The input is all numerical. This is a touchscreen application, so when the textbox gets focus, a “numberpad” form is displayed for the user to input the number. The user’s input is displayed on the “numberpad” form.

The question: How do I get that input to be set as the text property of the calling textbox?

I know I could pass some int value then use a big switch statement when the value is to be passed, but there are around 30 textboxes. Any ideas?

Answer 1

In your NumberPad form, have a property that is your result:

public int Result { get; private set; }

When the user hits the button to save the data, assign the value and set the DialogResult for the form:

private void btnSave_Click(object sender, EventArgs e)
{
    Result = // whatever
    DialogResult = DialogResult.OK;
}

In the calling form, check the result and only process if it is OK (in other words, the NumberPad was saved and not cancelled):

NumberPad pad = new NumberPad();
if (pad.ShowDialog() == DialogResult.OK)
{
    txtBox.Text = pad.Result.ToString();
}