CODEWITHSUNDEEP
c#visual-studio-2010textbox
rj tubera
rj tubera

Reputation: 757

TextBox that Gets the value of another TextBox VISUAL C#

Is It possible that if I create two TextBoxes.

When the first TextBox is modified from input, the second text box is set to be read only and its value will update depending on what you had written in the first text box.

It's like when I am posting here in stackoverflow there is also a read only area that follows what I'm typing (The preview window). :)) Thanks!!!

Upvotes: 1

Views: 7576

Answers (3)

Saber Amani
Saber Amani

Reputation: 6489

If it's win-form application, it's so simple. try this :

    private void txtFirstTextBox_TextChanged(object sender, EventArgs e) {
        if (string.IsNullOrEmpty(txtFirstTextBox.Text)) {
            txtSecondTextBox.Clear();
            return;
        }
        txtSecondTextBox.Text = txtFirstTextBox.Text;
    }

hope this help.

Upvotes: 1

Justin Niessner
Justin Niessner

Reputation: 245389

Since there is already a WPF Solution and you didn't specify which you are using, I'll go ahead and post a WinForms solution.

Luckily, this is relatively simple in WinForms as well. You simply wire a TextChanged event handler for the first text box which updates the text of the second:

private void textBox1_TextChanged(object sender, EventArgs e)
{
    textBox2.Text = ((TextBox)sender).Text;
}

Upvotes: 0

Kevek
Kevek

Reputation: 2554

I should note: This is a solution if you're using WPF for your UI.

Yes that's easily possible if you have, for example the first textbox:

<TextBox x:Name="FirstBox"/>

You can bind to this text box's content via:

<TextBox x:Name"SecondBox" Text="{Binding ElementName="FirstBox", Path="Text", UpdateSourceTrigger=PropertyChanged}" IsEnabled="False"/>

And when the first text box changes, the second one should follow suit. This is all handled automatically for you via binding, it connects to the Text property on the TextBox named "FirstBox". This second TextBox is disabled by setting the IsEnabled property to "False"

Upvotes: 0

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