How to call back method in JavaScript?

Ken H

Hi,

How to use javasript call a method with parameters?

Codes:

WebForm1.aspx:

WebForm1.aspx.cs:

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Collections;

namespace WebApplication1

{

public partial class WebForm1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e){

if (!IsPostBack) {
}
}

public void CheckValid(string[] values) {

// etc...
}

}

Thanks.

5 Replies

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Khan Abrar Ahmed12y ago
Hi,
what error u are getting.
Ken H12y ago
It does not work.
Khan Abrar Ahmed12y ago
Hi,

if you want on click event you need to register you javascript method first.

for example

protected void Page_Load(object sender, EventArgs e){
if (!IsPostBack) {
}

javascriptmethod()
}

Private voit javascriptmethod(){
if (chkTillDate.Attributes["OnClick"] == null)
                chkTillDate.Attributes.Add("OnClick", "return disableDateDropDowns(this,getElementById('" + txtToDay.ClientID + "'),getElementById('" + txtToMonth.ClientID + "'),getElementById('" + txtToYear.ClientID + "'));");
            else
                chkTillDate.Attributes["OnClick"] = "return disableDateDropDowns(this,getElementById('" + txtToDay.ClientID + "'),getElementById('" + txtToMonth.ClientID + "'),getElementById('" + txtToYear.ClientID + "'));";
}

and after in aspx page
Ken H12y ago
Hi Abrar,
I need to trigger the client control's 'onclick' event.

Thank you.
Khan Abrar Ahmed12y ago
Hi,
Can you please explain more where you want to call the javascript method
for ex. any textbox validation or dropdown change event.