How to use the TextBox control in WinForms?

6 months ago

2 minutes

Using the TextBox control in WinForms is very easy. Simply drag the TextBox control onto the form in the design interface, then customize the TextBox control by changing properties such as text content, font style, size, color, etc.

In code, you can manipulate a text box by using the properties and methods of the TextBox control, such as:

Set the content of the text box:

textBox1.Text = "Hello World";

Obtain the content of the text box:

string text = textBox1.Text;

Clear the text box content.

textBox1.Text = "";

Make the text box read-only.

textBox1.ReadOnly = true;

Set the maximum length of the text box:

textBox1.MaxLength = 10;

Add an event handler, such as triggering an event when the text in the text box changes.

textBox1.TextChanged += TextBox1_TextChanged;

private void TextBox1_TextChanged(object sender, EventArgs e)
{
    // Do something when text in TextBox changes
}

By using the above methods, basic operations and event handling for the TextBox control can be achieved.