problem with retrieving value from asp-textbox

[mathewgk80]

Hi all,

I am having two textboxes

First textbox is used to enter the price per unit of an item..

Second TextBox is used to enter the number of items..

I have a label which should display the total amount , ie, priceperunit*nu mberofitems..

The total amount should be displayed whenever the user enter the numberof items...

I have to write the javascript code to find the total..

Please help me...

Regards,
Mathew

[Markus]

Hi all,

I am having two textboxes

First textbox is used to enter the price per unit of an item..

Second TextBox is used to enter the number of items..

I have a label which should display the total amount , ie, priceperunit*nu mberofitems..

The total amount should be displayed whenever the user enter the numberof items...

I have to write the javascript code to find the total..

Please help me...

Regards,
Mathew

Sounds like you want us to write it for you...

Just read some tutorials

=]

[gits]

hi ...

please show some code you have done so far ... so that we may have a look at your attempt and its particular problems if there are any ...

kind regards

[mathewgk80]

Hi,

I have written the Javascript code as given below.

JavaScript
...............
[CODE=javascript]function calculatesum()
{
noofitems=docum ent.getElementB yId("ctl00_Cont entPlaceHolder1 _txtNoofItemsPu rchased").value ;
priceperunit=do cument.getEleme ntById("ctl00_C ontentPlaceHold er1_lblPricePer Unit").value;
var total=noofitems *priceperunit;
return total;
}[/CODE]


and when i execute the program i met with some error saying that

"The server tag is not well formed."

I am having the textbox property as given below

[CODE=asp]<asp:TextBox ID="txtNoofItem sPurchased" runat="server" Height="15px" Style="left: -14px; position: relative;
top: -9px"; Width="42px"; OnTextChanged=" return calculatesum()" ></asp:TextBox>[/CODE]

Please let me know where i went wrong...

regards,

Mathew

[gits]

changed thread title to better describe the problem ... please always use a good thread title ...

[acoder]

Where's the code for the label?

Can you post the client-side version of your ASP.NET code?

[mathewgk80]

Where's the code for the label?

Can you post the client-side version of your ASP.NET code?

The code of Label is given below...

<asp:Label ID="lblPricePer Unit" runat="server" Height="20px" Style="left: 80px; position: relative;
top: -41px" Width="91px"></asp:Label>

[acoder]

If you view the source in the browser on the client-side, is the label ID still the same or has it changed to something else?

Whatever the ID is, use that with document.getEle mentById(labelI D).innerHTML to set the label with the total.