count the characters in textbox

Question

hi!
in my textbox control i give maxlength=150. and bottom of the control i take label. when user enter the characters into textbox, the label shows the values decrement by 1 upto 0. at the same time user erase the characters this time increment by 1 upto 150.
please give a code to do this.
thanks

Hirendra Sisodiya · Answer

you can use 'length' property of textbox.text..simple.... thankyou

Vasanth · Answer

In web  Please add below attributes for the textbox event  onkeypress onkeyup onkeydown onPaste [ Javascript ] function CheckLength(txtmaxLen) { try { if(txt!= null) { var iLength = txt.value.length if (iLength { //Display the remaining characters document.getElementById(' ').innerHTML = maxLen - iLength +  are remaining characters.; } else { txt.value = txt.value.substring(0 maxLen); return false; } } } catch(e) { return false; } } Please mark as answer if its help out.

Jaish Mathews · Answer

Hi Should be used JavaScript. Here small sample. But need to handle additional things if needed ie. any special character handlings. aspx JavaScript function HandleKeyUp(ctlr) { var label = $get(statusLabel); var length = ctlr.value.length label.innerText = You reached  + length +  characters; } CodeBehind if (!IsPostBack) { TextBox1.Attributes.Add(onkeyup HandleKeyUp(this);); }

Deepak Arora · Answer

hi ajay private void textBox1_TextChanged( object sender EventArgs e) { label1.Text = Convert .ToInt32((textBox1.MaxLength) - (textBox1.Text.Length)).ToString(); } If answer is helpful plz mark it as accepted answer......Thank u

Deepak Arora · Answer

hi ajay private void textBox1_TextChanged( object sender EventArgs e) { label1.Text = Convert .ToInt32((textBox1.MaxLength) - (textBox1.Text.Length)).ToString(); } If answer is helpful plz mark it as accepted answer......Thank u

Deepak Arora · Answer

hi ajay private void textBox1_TextChanged( object sender EventArgs e) { label1.Text = Convert .ToInt32((textBox1.MaxLength) - (textBox1.Text.Length)).ToString(); } If answer is helpful plz mark it as accepted answer......Thank u

ajay raju · Answer

hi! Mathews mainly i used web. (also give a code for windows)

ajay raju · Answer

hi! krishna prasad It is not working.

krishna prasad · Answer

Hai ajay.... It's pretty easy.i assume u know all the basics....first pull up a text box(say textbox1) from toolbox and set it's maximum length to 150 in it's properties.next pull up a label(say label1) from toolbox.....In the textchnaged event of textbox(i.e)double click the textbox and write the following line label1.Text = textbox1.Text.Length.ToString(); Hope your requirement is satisfied.. Any doubts feel free to ask.. ---------------------------------------------------------------------------------------------------------------- If someway my answer helped u don't forget to mark it as accepted answer......Thank u

Jaish Mathews · Answer

Web or Windows?