please provide the code ........

Hi

you can set Autopostback = true for second textbox and write code in ontextchanged event of second textbox


Thanks

R D Patel

Srinunelli, if this helps please login to Mark As Answer. | Alert Moderator

Hi Srinunelli,
Try This:

 <form id="form1" runat="server">

    <div>

          SecuredMarks  <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>

        <br />

      TotalMarks  <asp:TextBox ID="TextBox2" runat="server" AutoPostBack="True" 

            ontextchanged="TextBox2_TextChanged"></asp:TextBox>

        <br />

     Percentage   <asp:TextBox ID="TextBox3" ReadOnly="true" runat="server" Width="295px"></asp:TextBox>

    

    </div>

    </form>

protected void TextBox2_TextChanged(object sender, EventArgs e)

    {

        TextBox3.Text = Convert.ToDecimal(100* decimal.Parse(TextBox1.Text) / decimal.Parse(TextBox2.Text)).ToString();

    }

Click Mark As Answer if it works for you

Thanks,
Sanjay

Srinunelli, if this helps please login to Mark As Answer. | Alert Moderator

Hi Srinunelli,
After you enter data in textbox2 press tab or click any other control.You need to come-out of that control.
Do appropriate validation as per requirement.

Thanks,
Sanjay

Srinunelli, if this helps please login to Mark As Answer. | Alert Moderator

Hi
<form id="form1" runat="server">
<div>

Secured Marks<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<br />
<br />
Total Marks <asp:TextBox ID="TextBox2" runat="server" AutoPostBack="True"
ontextchanged="TextBox2_TextChanged"></asp:TextBox>
<br />
<br />
Percentage <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>

</div>
</form>

protected void TextBox2_TextChanged(object sender, EventArgs e)
{
TextBox3.Text = ((Convert.ToDecimal(TextBox1.Text) / Convert.ToDecimal(TextBox2.Text)) * 100).ToString();
}

Regards,
Denny Kurian

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Hi

YOu Can USe This Code

protected void TotalPercentage_TextChanged(object sender, EventArgs e)

{



TotalPercentage.Text = Convert.ToDecimal(100* (Convert.ToDecimal(Mark1.Text)) /(Convert.ToDecima(Mark2.Text))).ToString();



}

Life is a Race
Thanks & Regards
By
Sabari Mahesh P M

Srinunelli, if this helps please login to Mark As Answer. | Alert Moderator

hi Srinunelli,
You can also use javascript OnBlur event to calculate percentage.
this.textbox2.Attribute["onBlur"]="javascript:return CalCulatePercentage()";

in javascript file,

function CalCulatePercentage()
{
//secured marks textbox1,total marks textbox2,percentage textbox3

var securedMarks=document.getElemtById("textbox1").value;
var totMarks=document.getElemtById("textbox2").value;

if(securedMarks == "")
{
alert("please enter secured marks.");
return false;
}
if(totMarks == "")
{
alert("Please enter total marks.");
return false;
}

document.getElemtById("textbox3").value = (parseFloat(securedMarks)/parseFloat(totMarks)) * 100;
return true;
}

Thanks,
Rajni Shekhar

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