Thread: How to use Character

How to use Character counter in ASP.Net?

I am working on one live project where I am using Asp.net as front end. I have created one text box whose maximum length is 500. I use regular expression for validation if lengths of character in text bow go over 500. But it is very lengthy process. I would like to show a counter whose value is decremented from 500 whenever key press event occurred on text box.

You have to use label with width correctly set to display a lesser space besides the textbox. After doing this allocate the text of the label with the length of the textbox length as follows:

key press event
{
l1.Text = TextB1.Text.Length;
or
l1.Text = (500 - Convert.ToInt32(TextB1.Text.Length)).ToString();
}