how to pass the control to unfilled textbox

Question

0.00/5 (No votes)

See more:

i have 50 textboxes in a page. i set validators also.
When user forgets to fill the first textbox and clicks button at the bottom of the page i need the control should pass to the unfilled textbox.
how to code for that?

Posted 13-Mar-13 20:08pm

sukumari1

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)

Anurag Sinha V · Answer 1 · 2013-03-13T20:22:00

Solution 1

Hi,

On button click event, you can add the below code:

C#

if(string.IsNullorEmpty(TextBox1.Text))
{
TextBox1.Focus();
}

-Regards

Posted 13-Mar-13 20:22pm

Anurag Sinha V

Comments

sukumari1 14-Mar-13 2:30am

i have more number of texboxes. What i want is to validate a page. If validators are true, the control should go to the textbox or dropdown

Anurag Sinha V 14-Mar-13 2:35am

Hi,

Didnot understand what are you trying to say here.
Can you be more precise?

sukumari1 14-Mar-13 6:08am

i have 25 textboxes on top of page and remaining at the bottom. Finally if user clicks submit button which is at the bottom i want to display "some fields are missing" if user forgets anything. i set reqd field validator, it's working but user wont be aware of that since the missing field is at the top of the page. So i want to display below the submit button "some fields are missing". i tried giving page.Isvalid still not working.

Anurag Sinha V 14-Mar-13 6:37am

Hi, I understood your scenario.

The required field validators will actually show their text besides the textbox itself, to which they are applied.

So I suggest, in this case, you may remove all the required field validators and call a Javascript function on the Submit button click.Check whether the textboxes are filled and display an alert or write the error message on to a label near to the submit button.Something like this:
<script text="javascript">
function CallMe()
{
var x=document.getElementById("id of textbox").value;
if(x=="" || x== null)
{
alert("Some stuffs are missing");
}
}

You can call this Javascript function from the C# code behind on the button click as below:

protected void button_click()
{
Page.RegisterStartupScript(this.GetType(),"alert","CallMe();",true);
}

The reason why I have chosen Javascript to do this cause it will do client side validation and your app will not have to go to the server or any postback.

Hope it helps.

-Anurag

Anurag Sinha V 14-Mar-13 6:39am

Ahh, the code aint visible properly in the comment section.I am writing the above code in another solution below.
Have a look at it and try.

Anurag Sinha V · Answer 2 · 2013-03-14T00:44:00

Client side code:

JavaScript

<script type="text/javascript">

function CallMe()
{
var x= document.getElementById("id of textbox").value;
if(x=="" || x==null)
{
alert("Some stuffs are missing");
}
}
</script>

Then you can call this Javascript code from your C# code behind as below:

C#

protected void button_click(object sender, EventArgs e)
{
Page.RegisterStartupScript(this.GetType(),"alert","CallMe();",true);
}

Hope it helps.

-Anurag