Want to show value in a text box after click event

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I have two textboxes.

I will calculate the values of two text box inputs then when I click on 3rd text box then the calculated value will be shown on the 3rd text box.

Can anyone please tell me how to do that?

You can only give me solution about that click event.

Posted 19-Oct-10 20:47pm

sazib

Updated 19-Oct-10 21:43pm

Dalek Dave

v2

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Dalek Dave 20-Oct-10 3:43am

Edited for Readability.

4 solutions

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Hiren solanki · Answer 1 · 2010-10-19T21:19:00

Solution 3

You need to use Js onFocus Event.

Suppose there are three textbox named,

TextBox1,TextBox2,TextBox3

Then write onFocus Event on TextBox3 Like.

<asp:textbox id="TextBox3" runat="Server" onfocus="javascript:focused(this)" xmlns:asp="#unknown" />

JavaScript

function focused(txt3)
{
var result = document.getElementById("TextBox1").value * document.getElementById("TextBox2").value;
            txt3.value = result;

}

[Additional answer]
You could use THIS[^]
[/additional answer] to count date difference.

and your'e done.

Please vote and Accept Answer if it Helped.

Posted 19-Oct-10 21:19pm

Hiren solanki

Updated 19-Oct-10 23:52pm

v2

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sazib 20-Oct-10 5:16am

Thanks for your reply.You solution works well for any values.But I have to work with dates. I've two text box startdate and enddate. I will input two date into two text box one is txtBoxStartDate and another one txtBoxEndDate. I want to show the duration of these two dates after I click on duration text box. Can you please tell me the whole procedure using javascript or jquery? I know the calculation in C# but as I'm a beginner of javascript,so I need your help.

Hiren solanki 20-Oct-10 5:19am

duration in minutes,seconds,hours... ???

sazib 20-Oct-10 5:48am

I need only days.nothing else.

Hiren solanki 20-Oct-10 5:53am

see my additional answer.

Rajesh Anuhya · Answer 2 · 2010-10-19T20:56:00

Solution 1

use the enter event of the textbox ..

use the below code

<pre lang="cs">private void textBox3_Enter(object sender, EventArgs e)
       {
           textBox3.Text = Convert.ToString (Convert.ToInt32(textBox1.Text) + Convert.ToInt32(textBox2.Text));
       }

Posted 19-Oct-10 20:56pm

Rajesh Anuhya

Updated 19-Oct-10 21:19pm

v3

Comments

Hiren solanki 20-Oct-10 3:05am

Question is from asp.net, and it doesn't support _enter event.

Rajesh Anuhya 20-Oct-10 3:06am

ohhh.., am sorry i just confused,,

sazib 20-Oct-10 4:09am

Thanks for your ans. It's not working the way I need to.I've two text box startdate and enddate. I want to show the duration of these two dates after I click on duration text box. I know the calculation but I don't know how to automatically put the duration value after just a single click on duration textbox.

Rajesh Anuhya 20-Oct-10 6:04am

hi "madhukk" .., why u edited my answers as "OnTextChanged" instead of "Enter" event(which i write).., is there any specific reason?????????

Mohd Wasif · Answer 3 · 2010-10-19T23:59:00

do it on blur like it drag a button and on button click write ur code:

textBox3.Text = Convert.ToString (Convert.ToInt32(textBox1.Text) + Convert.ToInt32(textBox2.Text));

and
onload event of page write this

protected void Page_Load(object sender, EventArgs e)
{
Button1.Visible = false;
string handler = ClientScript.GetPostBackEventReference(this.Button1, "");
TextBox2.Attributes.Add("onblur", handler);
}

Rounak Hasan · Answer 4 · 2010-10-19T21:08:00

Solution 2

http://www.codeproject.com/KB/cs/TextBox_subclassing.aspx[^] try this link...............otherwise u can use javascript to implement this............

Posted 19-Oct-10 21:08pm

Rounak Hasan

Want to show value in a text box after click event

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