Textbox character length check

Question

3.00/5 (1 vote)

See more:

For textbox in c#, how to I get textbox to wait unti im finished typing all the characters before checking the count? If I have a condition to check if a variable length is less than 6 and issue a message if it is, i want to wait until i input all the characters before checking, rather than issuing the message after every character.

What I have tried:

Textbox character length check

Posted 8-Apr-19 8:55am

Ajvilar

Updated 9-Apr-19 7:49am

Add a Solution

3 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)

Gerry Schmitz · Answer 1 · 2019-04-08T09:20:00

It's simpler to wait until "submit" to check "all" fields and show only 1 or 2 top messages, instead of trying to control "focus".

You can post errors in a message area from OnLostFocus and the like (so user can "go back"), but anything more requires "programming" (keyboard, mouse, "touch", activate / deactivate, etc.).

**Nirav Prabtani** · Answer 2 · 2019-04-08T18:51:00

You should use client side validation for same.

You can check onblur event for the length of a characters inserted into the textbox.

HTML

<input type="text" onblur="return myFunction()">

Script

JavaScript

function myFunction(){

var iCount = $("#txtValue").val();

if(iCount > 6){

return true;

}else{

alert("Your alert message");
return false;
}

}

Or

You can set validation on button click event also instead of blur or textchanged event.

If you are using server side textbox (asp:) then set AutoPostBack = False

Ajvilar · Answer 3 · 2019-04-09T07:49:00

Solution 3

Thank you! Your script option worked for me.

Posted 9-Apr-19 7:49am

Ajvilar

Textbox character length check

3 solutions

Solution 1

Solution 2

Solution 3

Add your solution here

Preview 0