Call a Javascript function from C#

[Praveen]

Hello,

I have a web form(mainform.aspx) which contains a
javascript function (draw). How can i call this function
(on button click event) from Mainform.aspx.cs file.
If anything is unclear please let me know.
Any help would be really appreciated.

Regards
Praveen Manne

 

[Telmo Sampaio]

Hi Praveen,

You can achieve this by using somethig similar to the code below:

<form runat="server">
<asp:button id="button1" onclick="button1_click" runat="server"
Text="Click Me!"></asp:button>
</form>

HTH,

Telmo Sampaio
MCT

 

[bfking]

adding the onclick directly to the html will cause a server event to
fire. the best way is to do add this code to the Page_Load

button1.Attributes.Add("onClick", "MyJS('a','b');");

bk

 

[Guest]

Thank You bfking and Telmo. it Worked!

regards
Praveen

 

[Praveen]

Hi,

One more small query ..

The JavaScript function I'm using dishes out some values
and is there any way that I can use those variables/values
in my C# code.

Any help would be really appreciated.

Regards
Praveen ..

 

[Telmo Sampaio]

oops... I forgot to take the runat=server out of there...

 

[bfking]

i don't know of a way to pass values from JS to code behind, except
setting the values to hidden fields, then accessing the hidden fields
in the code behind. (make sure runat="server" is in the hidden fields.

why not generate those values in the code behind then pass those values
to the JS func?

 

[Pooja....]

Hi..
i also did the same.. but still unable to get the solution..

default.aspx
<asp:Button ID="Button11" runat="server" Text="Upload111" style="display:none"/>

default.aspx.cs
protected void buttonPicUpload_onclick(object sender, EventArgs e)

{

Button11.Attributes.Add("onclick", "buttonPicUpload_onclickJS();");



}



js function is:
function buttonPicUpload_onclickJS()

{

alert("ghfcjhgfjhe");

}

from cs i am unable to go to js...
please help me do so..
thanks in advance..