How Do I Disabled The Textbox After Selecting Particular Value From Combobox

Question

1.00/5 (1 vote)

See more:

C#

private void cmbWinLoss_SelectedIndexChanged(object sender, EventArgs e)
{
  if (cmbWinLoss.selectedvalue == "-")
  {
      cmbLossTo.Enabled = false;
      cmbLossReason.Enabled = false;
      txtDetailsLosRsn.Enabled = false;
  }
  else
  {
      cmbLossTo.Enabled = true;
      cmbLossReason.Enabled = true;
      txtDetailsLosRsn.Enabled = true;
  }
}

but it is not working give me solution

Posted 4-Nov-14 0:53am

Member 11205380

Updated 4-Nov-14 1:25am

DamithSL

v2

Add a Solution

Comments

Rob Branaghan 4-Nov-14 7:03am

Are you populating your combobox dynamically?
If you have then I think you want to look at SelectedItem, rather than value?

ZurdoDev 4-Nov-14 10:23am

All you have to do is debug it and you'll see the problem.

1 solution

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)

BillWoodruff · Answer 1 · 2014-11-04T01:10:00

Solution 1

C#

private void cmbWinLoss_SelectedIndexChanged(object sender, EventArgs e)
{
    cmbLossTo.Enabled =
        cmbLossReason.Enabled =
            txtDetailsLosRsn.Enabled =
                (! (cmbWinLoss.SelectedItem.ToString() == "-"));
}

Posted 4-Nov-14 1:10am

BillWoodruff

Updated 4-Nov-14 2:27am

v2

Comments

Alan N 4-Nov-14 7:41am

I bet that gives a compiler warning about "possible unintended reference comparison" and I'm sure you meant to cast SelectedItem to string. Literal string pooling by the compiler or string interning by the CLR will usually ensure that the references are equal but it isn't something that should be relied upon.

BillWoodruff 4-Nov-14 8:28am

I agree with you, Alan, it's better practice to not rely on object => string implicit conversion. Interesting that ReSharper doesn't flag this one. Code changed, thanks.