aspxgridview CustomButtonCallback 不支持弹出消息提示

aspxgridveiw是devexpress的一个grid控件，使用起来还不错。但是今天遇到一个问题，就是不能再 CustomButtonCallback 事件中使用response.write，因为

CustomButtonCallback 事件是无刷新的，所以不支持，但是即使使用ScriptManager.RegisterClientScriptBlock(page, page.GetType(), "MyScript", myScript, true)也无

济于事，在网上查了很久，官方有个解决办法，原文如下：（原文地址）

Hi Troy;

To provide this functionality you should throw an exception in the CustomButtonCallback event handler and process this exception in the CallbackError

event handler. Here is the 易做图 sample:

[csharp] protected void ASPxGridView1_CustomButtonCallback(object sender, DevExpress.Web.ASPxGridView.ASPxGridViewCustomButtonCallbackEventArgs e)
    {
        throw new Exception("Here I am!");
    }

protected void ASPxGridView1_CustomButtonCallback(object sender, DevExpress.Web.ASPxGridView.ASPxGridViewCustomButtonCallbackEventArgs e)
    {
        throw new Exception("Here I am!");
    }[javascript] view plaincopyprint?if (e.message == 'Here I am!')
{
   clientErrorImage.SetVisible(true);
}

if (e.message == 'Here I am!')
{
clientErrorImage.SetVisible(true);
}If this answer is incomplete or I misunderstood your requirements, please let me know.

Thanks
Kate.

但是实际测试中发现了问题， throw 的时候后台直接抛出错误了，，这个方法也行不通，再找。。。

最终还是在官网上找到了解决方案，原文地址，我的代码如下：

[csharp] protected void ASPxGridView1_CustomButtonCallback(object sender, ASPxGridViewCustomButtonCallbackEventArgs e)
       {
           ASPxGridView view = sender as ASPxGridView;
           if (e.ButtonID == "btnAudit")
           {
               int id = 0;
               int.TryParse(view.GetRowValues(e.VisibleIndex, "id").ToString(), out id);
               if (true)
                   {
                       view.JSProperties["cpErrorMsg"] = "审核成功！";
                       view.DataBind();
                   }
                   else
                   {
                       view.JSProperties["cpErrorMsg"] = "此单据已经审核！";
                   }
           }
       }

protected void ASPxGridView1_CustomButtonCallback(object sender, ASPxGridViewCustomButtonCallbackEventArgs e)
        {
            ASPxGridView view = sender as ASPxGridView;
            if (e.ButtonID == "btnAudit")
            {
                int id = 0;
                int.TryParse(view.GetRowValues(e.VisibleIndex, "id").ToString(), out id);
                if (true)
                    {
                        view.JSProperties["cpErrorMsg"] = "审核成功！";
                        view.DataBind();
                    }
                    else
                    {
                        view.JSProperties["cpErrorMsg"] = "此单据已经审核！";
                    }
            }
        }[javascript] function EndCallBack(s, e) {
       if (s.cpErrorMsg!="") {
           alert(s.cpErrorMsg);
       }
   }

function EndCallBack(s, e) {
        if (s.cpErrorMsg!="") {
            alert(s.cpErrorMsg);
        }
    }

补充：Web开发 , ASP.Net ,