如何在asp.net表单服务器端显示消息框或警报消息？

问题描述

嗨
我是创建网站，在按钮点击事件表单服务器端我需要显示消息/警报消息，但是更新面板内的按钮控件。



这是源代码中的代码

Hi I am create website ,in button click event form server side i need to show message/alert msg,but that button control inside of updatepanel.

This is code in source code

<asp:UpdatePanel ID="UpdatePanel6" runat="server">
<ContentTemplate>
<asp:Button ID="btnChgPass" CssClass="font12" runat="server" Text="Apply Changes" />
</ContentTemplate>
</asp:UpdatePanel>

这是在服务器中SID e，在此按钮单击事件中，我尝试使用window.alert显示HAI消息。但它从不显示消息。

This is in server side,in this button click event i try to show "HAI" message using window.alert.but it never show message.

 Protected Sub btnChgPass_Click(sender As Object, e As System.EventArgs) Handles btnChgPass.Click

 ClientScript.RegisterStartupScript(Me.GetType(), "ClientScript", "<script language='JavaScript'>  window.alert('HAI');</script>")

End Sub

请回复我如何显示邮件表单服务器端按钮点击事件，当updatepanel里面的那个按钮控制。



注意：当我在表单加载事件中添加下面的行，即注册后退控件的按钮控件，然后它显示消息，但页面得到刷新，我不想刷新或重新加载页面，所以只有我使用updatepanel。

Pls reply me how to show message form server side button click event ,when that button inside updatepanel control.

Note:When i add below lines in form load event,i.e register post back control for button control,then it show message,but page get refresh,i don't want get refresh or reload page,so only i use updatepanel.

Dim script As ScriptManager = ScriptManager.GetCurrent(Page)
script.RegisterPostBackControl(btnChgPass)

问候



Aravind

Regards

Aravind

推荐答案

protected void Page_Load(object sender, EventArgs e)
{
  string message = "Hello! Mudassar.";
  System.Text.StringBuilder sb = new System.Text.StringBuilder();
  sb.Append("<script type = 'text/javascript'>");
  sb.Append("window.onload=function(){");
  sb.Append("alert('");
  sb.Append(message);
  sb.Append("')};");
  sb.Append("</script>");
  ClientScript.RegisterClientScriptBlock(this.GetType(), "alert", sb.ToString());
}

Dim message As String = "alert('Please enter all values!')"
ScriptManager.RegisterClientScriptBlock(TryCast(sender, Control), Me.GetType(), "alert", message, True)

问候

Aravind

Regards
Aravind

Protected Sub btnChgPass_Click(sender As Object, e As System.EventArgs) Handles btnChgPass.Click

  Dim javaScript As String = "<script language='JavaScript'> alert('Button Click client-side'); </script>"

  ScriptManager.RegisterStartupScript(UpdatePanel6, UpdatePanel6.[GetType](), "alert", javaScript, True)
End Sub

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