textbox focus out validation using custom validator

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I need to validate text box using validation controls. When i enter some text and the focus is out it should display a custom validator message stating whether the entered text is valid or not. i have written the code in textchanged event and i have created a custom validator with control to validate as textbox. i am setting the error message and color of the message as per my requirement in textchanged event.

Posted 2-Dec-10 19:19pm

MathewPV

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Ankur^\m/ 3-Dec-10 1:30am

So what is the question?

MathewPV 3-Dec-10 1:33am

i want to display the custom validator after performing post back in textbox textchanged event

2 solutions

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Ankur^\m/ · Answer 1 · 2010-12-02T19:39:00

You said you have created a Custom Validator to validate the TextBox. Why do you need textchanged event then?

You can easily achieve this using JavaScript. Write code to check the values in onblur event of the TextBox. Something like this:

XML

<asp:TextBox ID="TextBox1" runat="server" onblur="return validateData();"></asp:TextBox>

JavaScript

function validateData()
{
    //write validation code here.
}

Hope this helps!

sujeet101 · Answer 2 · 2010-12-02T20:07:00

Solution 2

write your validator code on the Leave event of textbox,and if validation failed keep the focus on that textbox(textbox1.focus();)

Posted 2-Dec-10 20:07pm

sujeet101