How do I disable textbox in C#

Question

1.00/5 (2 votes)

See more:

Hi! This is Atta Ur Rahman. I have Two Question. First one is to disable textbox. in form i have radio Button "Male" and "Female". and a textbox " Husband Name" and Husband NIC". when I check "Male" button. I want to disable both the texboxes of husband name and husband nic.
Another question is this, i want to allow the texboxes only alphabets.

What I have tried:

i tried to allow the numeric in tex boxes but i don't know how to not allow the numerics.

private void txbxralativenic_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (!char.IsDigit(e.KeyChar) && e.KeyChar != '-' && !char.IsControl(e.KeyChar))
            {
                e.Handled = true;
            }
            if (txbxralativenic.Text.Length > 14 && !char.IsControl(e.KeyChar))
            {
                e.Handled = true;
            }
        }

Posted 11-Feb-17 2:49am

Atta Ur Rahman Pak

Updated 11-Feb-17 3:24am

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Peter Leow · Accepted Answer · 2017-02-11T03:22:00

Solution 1

If textBox1 is the text box for husband name and radioButton1 is the radio for male option, then

private void radioButton1_CheckedChanged(object sender, EventArgs e)
{
	textBox1.Enabled = !radioButton1.Checked;
}

For the next question, check this out: User Input Validation in Windows Forms[^]

Posted 11-Feb-17 3:22am

Peter Leow

Comments

Atta Ur Rahman Pak 11-Feb-17 11:55am

Thank You sir. My Problem Solved....

Karthik_Mahalingam 11-Feb-17 13:57pm

if solved, please close this post by clicking "Accept Answer"

OriginalGriff · Accepted Answer · 2017-02-11T03:24:00

Solution 2

Try:

C#

MyTextBox.Enabled = false;

For numeric only input, I wouldn't use a TextBox - you can do it, but it's a bit of a PITA because you have to prevent Pasting as well as keyboard entry.
Instead, I'd suggest you use a NumericUpDown control - it will only allow numbers, and allows you to set a maximum and minimum value as well.

Posted 11-Feb-17 3:24am

OriginalGriff

Comments

Atta Ur Rahman Pak 11-Feb-17 11:55am

Thanks Sir.