Create a requiredfieldvalidator dinamically from javascript

Hi Samanta,

 

You are already creating textboxes (input boxes) from javascript right ?

 

So create one more label next to it with Red color and hide it.

 

 

As per my assumption you are adding input boxes to a container control like div right ?

 

Then on a button click call a javascript function which will then loop through all input boxes in that div and it the searched input box is blank then unhide the label next to it which has same name prefix RQ. and use return false in function so next code wont execute.

 

Hope it helps.

Thanks. 

Hello Samanta, Try below code

 

Dear sir,

 

I am adding input control by javascript.

 

 

 

Try with below code:

 

TextBox txt = new TextBox();

txt.ID = "DynaTextbox";

 

RequiredFieldValidator rfv = new RequiredFieldValidator();

rfv.ErrorMessage = "Error is for Textbox Control";

rfv.BorderColor = Color.Red;

rfv.ControlToValidate = "DynControl";

 

pnl.Controls.Add(txt); // Add textbox to panel

pnl.Controls.Add(rfv); // Add RequiredFieldValidator to panel

 

Go through below link if you want to implement through javascript:

 

http://www.c-sharpcorner.com/UploadFile/manas1/displaying-dynamic-error-message-in-Asp-Net-custom-validator/