ASPxButton's click event problem

Jason Chen

10y1.9k.NET

There are 2 combobox controls A,B and a button control C on the page.

B has a client side SelectedIndexChanged event that invokes

the method A.PerformCallback();C has the click event on the server side and its autopostback=false;

When i click C on the page ,its click event occurs first normally. But if A.PerformCallback() is executed first (select a different item from B),then click C after that ,you'll find A's callback method runs too before C's click method runs ?Why will A's callback method run after C has been clicked?

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Jason Chen10y ago
1.the aspx code:

ClientInstanceName="ASPxComboBox_A" oncallback="ASPxComboBox_A_Callback"
SelectedIndex="0">

//e.processOnServer = false;
ASPxComboBox_A.PerformCallback();
}" />

onclick="ASPxButton1_Click" Text="ASPxButton">

2.the aspx.cs code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class _test : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}

protected void ASPxComboBox_A_Callback(object sender, DevExpress.Web.ASPxClasses.CallbackEventArgsBase e)
{
// codes to run;

}
protected void ASPxButton1_Click(object sender, EventArgs e)
{
// codes to run;
}
}
Gokulraj Sankar10y ago
Hi Jason,
if possible pls share your design page. i will be help you better.