ASP.net background pop-up prompt box

ASP.net background pop-up prompt box
1. Background pop-up prompt information method
Response.Write ("<scripttype=" Text/javascript) >alert (' The data you are querying does not exist. ');</script> ");
Pop-up prompts, but page blank
Page.registerclientscriptblock ("Tishi", "<scripttype=" Text/javascript ">alert" (' The data you queried does not exist '); </script > ");
Pop-up prompts, but page blank
Page.registerstartupscript ("Tishi", "<scripttype=" Text/javascript ">alert" (' Your queried data does not exist ');</script> ") ;//has expired,
Pop-up prompts, page not blank
Clientscript.registerclientscriptblock (this. GetType (), "Tishi", "<script type=" Text/javascript ">alert" (' The data you are querying does not exist. ');</script> ");
Pop-up prompts, but page blank
Clientscript.registerstartupscript (this. GetType (), "Tishi", "<script type=" Text/javascript ">alert" (' The data you are querying does not exist. ');</script> ");
Pop-up prompts, page not blank



The need to introduce System.Web.Extensions.dll in VS2005 must be added
Scriptmanager.registerclientscriptblock (This.btntishi, typeof (Button), "Tishi", "Alert" (' The data you are querying does not exist. '); ", true);
Pop-up prompts, but page blank
Scriptmanager.registerclientscriptblock (this, this.) GetType (), "Tishi", "Alert" (' The data you are querying does not exist. '); ", true);
Pop-up prompts, but page blank, this represents page
Scriptmanager.registerstartupscript (This.btntishi, typeof (Button), "Tishi", "Alert" (' The data you are querying does not exist. '); ", true);
Pop-up prompts information, the page is not blank; The method has succeeded
Scriptmanager.registerstartupscript (Page), "Tishi", "Alert" (' The data you are querying for does not exist. '); ", true);
Pop-up prompts, page not blank
Scriptmanager.registerstartupscript (This, typeof (_default), "Tishi", script, True);
Pop-up prompts, page not blank, this represents page
Background gets the confirm return value and has the selected execution statement block
C # End:
protected void Page_Load (object sender, EventArgs e)
{
if (! IsPostBack)
{
THIS.BTNTISHI.ATTRIBUTES.ADD ("onclick", "Tishi ()");
}
}
protected Voidbtntishi_click (object sender, EventArgs e)
{
if (This.hidevalue.Value = = "1")
{
Response.Write ("Success");
}
Else