CODEWITHSUNDEEP
c#winformstextbox
Sercan Kucukdemirci
Sercan Kucukdemirci

Reputation: 97

how to make a textBox change its height when the number of lines change

i made usercontrol with two textboxses. one of them is multiline and other textbox is single line which stays at bottom of multiline textbox. i want to change multiline textbox's height based on number of lines of content and stick single line textbox to this multiline textbox visually(no spacing between two textboxes).

Upvotes: 0

Views: 897

Answers (1)

TaW
TaW

Reputation: 54453

Is this what you are looking for?

SizeF size;
private void textBox1_TextChanged(object sender, EventArgs e)
{
    using (Graphics G = textBox1.CreateGraphics())
        size = G.MeasureString("Xy_", textBox1.Font, 999);

    textBox1.Height = (int)(textBox1.Lines.Count() * size.Height + 5);
    textBox2.Top = textBox1.Bottom - 1;
}

The using line really could and should be moved to the Form constructor.. Depending on your font and Borders you want to adapt the two correction numbers..

Upvotes: 1

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