drop down selected index changed

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Hi,

I am new at this, but i try to explain.

C#

<embed src="/Programblade/<%: DropDownList1.SelectedValue.ToString()  %>" width="750" height="550">

And it works really fine(because i have choosen an default selected item, but here is the problem.

I want it to refresh that area, when the selectedindexchanged, i tried a lot, and search the web, but could not find what i was looking for.

C#

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
        {
            What should i write here???? to refresh the other code?
        }

Hope for some help :)

-Thanks

Posted 17-Dec-12 3:18am

Junker91

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[no name] 17-Dec-12 10:27am

Please explain more about what you want to do here?

ZurdoDev 17-Dec-12 10:36am

It all depends on what code you have. What do you want to refresh? A grid? An area? Just write code to do whatever it is you want. We don't know specifically what you want or what your code looks like.

Junker91 17-Dec-12 14:25pm

the embed area
<pre>
<embed src="/Programblade/<%: DropDownList1.SelectedValue.ToString() %>" width="750" height="550">
</pre>

would i like to refresh or update when you pick another data from my dropdown list. so it's another file that is embed. the value of my dropdown items, is fx. programblad 83.pdf. So it is the file I change.

2 solutions

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Adam R Harris · Answer 1 · 2012-12-17T08:49:00

Instead of writing out your embed tag and then inserting the actual file name you should look at using a Literal[^] and then just output the desired embed tag to the Text property and set the Mode to PassThrough.

So something like this:

ASP.NET

<asp:literal id="MyLit" mode="PassThrough"></asp:literal>

C#

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
    if (!string.IsNullOrEmpty(DropDownList1.SelectedValue){
       myLit.Text = "<embed src="\"/Programblade/\"" dropdownlist1.selectedvalue="" width="\"750\"" height="\"550\""></embed>";
    }
}

Please note this was written directly into the browser so it probably wont compile.

Junker91 · Answer 2 · 2012-12-17T10:01:00

Solution 2

Problem solved.

I haven't checked AutoPostBack on the dropdown that solved the problem.

Thanks for the interest and sorry for taking your time.

Posted 17-Dec-12 10:01am

Junker91

Comments

Adam R Harris 17-Dec-12 16:02pm

No problem, if my solution helped please mark it as the accepted solution.

drop down selected index changed

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drop down selected index changed

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