how to fire Event of Objects Created with String Builder(HTML)

Question

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I have Created a Html Table in runtime
Using string Bulider in vb.net.
And also appended a Image source in a

Now I want that on click of that Image some events to be done.

Let I have placed Print image
and on click of that Image I want to open a new window
or whatever.

Dim s As New StringBuilder
  s.Append("<table cellspacing=0 cellpadding=4 border=1 width=100% bgcolor=#ffcocb><tr>")
        s.Append("<td colspan=1 >")
s.Append("</td>")
        s.Append("<td >")
        s.Append("<img src='images/print2.gif' border=0>")------- Image is here
        s.Append("</td>")
        s.Append("</tr></table>")

I want it to be done on the Image click.
Can C# or VB code Can Be called OnClcik .Please assist

Posted 10-Aug-12 2:21am

Karwa_Vivek

Updated 10-Aug-12 18:34pm

v2

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2 solutions

Solution 1

You need to dynamically create an onclick handler in your stringbuilder too, so that you have something like this :

s.Append("<img src='images/print2.gif' border=0 onclick='onclickhandler()'>")

of course you also need to code the onclick handler itself in your generated html code. Better try this in a normal way first and then create the string via a stringbuilder.

Posted 10-Aug-12 2:36am

Philip Stuyck

Comments

Karwa_Vivek 10-Aug-12 8:53am

Thanks

P Johnson Durai Raj 4-Mar-17 6:05am

how to use page bulider onlick function use wordpress but one list click?how to use function

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Christian Amado · Accepted Answer · 2012-08-10T02:39:00

Solution 2

ASP.NET

<asp:imagebutton id="ImageButton1" runat="server" onclick="ImageButton1_Click" xmlns:asp="#unknown" />

C#

protected void ImageButton1_Click(object sender, EventArgs e)
{
     MessageBox.Show("You clicked on image!");
}

Javascript =>

C#

s.Append("<img src='images/print2.gif' border='0' style='cursor: hand;' onclick='onclicked()'>");
s.Append("<script type='text/javascript'>function onclicked(){alert('You clicked on image');}</script>")

I tested & working for me =)

Hope it helps.

Posted 10-Aug-12 2:39am

Christian Amado

Updated 10-Aug-12 2:54am

v4

Comments

Karwa_Vivek 10-Aug-12 8:42am

I have created Whole page Dynamically using string Bulider and appending the html tags... I have not used any asp controls on the page..

Christian Amado 10-Aug-12 8:42am

Ups. Do you need it on javascript or C# code?

Karwa_Vivek 10-Aug-12 8:44am

javascript code can be called on onclick event of image..

Karwa_Vivek 10-Aug-12 8:53am

Thanks I was also Thinking that only.Is working .
But One thing you must have noticed that when mouse is over the image then
its not showing any change in mouse as we see hand cursor normally.Anyways will find it .Thanks again

Christian Amado 10-Aug-12 8:55am

Improved for you =) Regards

Philip Stuyck 10-Aug-12 9:04am

+5 for you

Volynsky Alex 10-Aug-12 10:03am

Good answer!

Christian Amado 10-Aug-12 10:04am

Thanks. Trying to help ;)

Volynsky Alex 10-Aug-12 10:07am

:) You are welcome

Karwa_Vivek 11-Aug-12 0:32am

Christian Amado I have a Query ... can a VB or C# code can be Called
from the Onclick event as Here we calling the Javascript ???

Christian Amado 11-Aug-12 0:37am

@Karwa_Vivek I'm not sure about it. Because you cannot generate the event. It will be interesting investigate that situation. My first example call a onclick="ImageButton1_Click" but the event will never fires. In some place we need ImageButton1.Click += new EventHandler(ImageButton1_Click).

siya_patel 25-Aug-16 3:02am

I want to insert value in table on click event of image.please help me i am using string builder.