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Asp.net selects and cancels all operations, and the deleted (ajax) after selection achieves no refreshing effect.

Source: Internet
Author: User
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Front-end code The Code is as follows:
: <% @ Page Language = "C #" AutoEventWireup = "true" CodeFile = "Default. aspx. cs" Inherits = "_ Default" %>
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head runat = "server">
<Title> User Information Operation </title>
<Script language = "javascript" type = "text/javascript" src = "ajax/jquery. js"> </script>
<Script language = "javascript" type = "text/javascript">
// Page Initialization
$ (Document). ready (function () {loadUserInfo ();});
// Load user information to the page
Function loadUserInfo ()
{
$. Ajax (
{
Type: "POST ",
Url: "Default. aspx ",
Data: {action: 'action '},
Success: loadUserInfoCallbace
}
);
}
// Page initialization callback function
Function loadUserInfoCallbace (r)
{
If (r = "")
{
$ ("# UserInfo" ).html ("no data ");
}
Else
{
$ ("# UserInfo" pai.html (r );
}
}
// Select all
Function CheckAll (obj)
{
$ ("Input [@ type = checkbox] [@ name = checkItem]"). attr ("checked", $ (obj). attr ("checked "));
}
// Collect all selected items
Function NumberID ()
{
Var allcheckboxs = $ ("input [@ type = checkbox] [@ name = checkItem] [checked]");
Var ids = "";
For (I = 0; I <allcheckboxs. length; I ++)
{
Var id = $ (allcheckboxs [I]). attr ("id"). split ("_") [1];
Ids + = id;
Ids + = ",";
}
Return ids;
}
// Delete a user
Function DeleteUser ()
{
If (! Window. confirm ("Do you really want to delete the selected user information? "))
{
Return;
}
Var ids = NumberID ();
$. Ajax ({
Type: 'post ',
Url: 'default. aspx ',
Data: {action: 'delete', userid: ids },
Success: deleteUserCall
});
}
// Delete the user callback function
Function deleteUserCall (r)
{
If (r = "OK ")
{
Alert ("deleted successfully ");
LoadUserInfo ();
}
Else
{
Alert ("failed ");
}
}
</Script>
</Head>
<Body>
<Form id = "form1" runat = "server">
<Div style = "text-align: center" id = "userInfo">
</Div>
</Form>
</Body>
</Html>

Background code:
Copy codeThe Code is as follows:
Using System;
Using System. Data;
Using System. Configuration;
Using System. Web;
Using System. Web. Security;
Using System. Web. UI;
Using System. Web. UI. WebControls;
Using System. Web. UI. WebControls. WebParts;
Using System. Web. UI. HtmlControls;
Using System. Data. SqlClient;
Using System. Text;
Public partial class _ Default: System. Web. UI. Page
{
String Straction = "";
Protected void Page_Load (object sender, EventArgs e)
{
Straction = Request ["action"];
If (Straction = "action ")
{
UserInfo ();
}
If (Straction = "Delete ")
{
DeleteUser ();
}
}
/// <Summary>
/// Zhou Xin loads user details on September 8
/// </Summary>
Public void UserInfo ()
{
SqlConnection mycon = new SqlConnection ();
Mycon. ConnectionString = ConfigurationManager. ConnectionStrings ["BoBoConn"]. ToString ();
String SQL = "select * from loginuser ";
SqlCommand mycom = new SqlCommand (SQL, mycon );
Mycon. Open ();
SqlDataReader myda = mycom. ExecuteReader ();
StringBuilder str = new StringBuilder ();
Str. append ("<table> <tr> <td> <input id = 'checkall' name = 'checkall' type = 'checkbox' onclick = 'checkall (this) '/> select all </td> <td> User Name </td> <td> full user name </td> </tr> ");
While (myda. Read ())
{
Str. Append ("<tr> <td> ");
Str. append ("<input id = 'checkitem _" + myda ["ID"]. toString () + "'Type = 'checkbox' name = 'checkitem 'style = 'text-align = 'left' onclick = 'numberid () '/> </td> ");
Str. Append ("<td>" + myda ["UserName"]. ToString () + "</td> ");
Str. Append ("<td>" + myda ["FullName"]. ToString () + "</td> </tr> ");
}
Str. Append ("</table> ");
Str. append ("<div style = 'text-align: Center'> <input type = 'button 'value = 'delete' onclick = 'deleteuser () '/> </div> ");
Response. Clear ();
Response. ContentType = "application/text ";
Response. Write (str );
Response. End ();
}
/// <Summary>
/// Zhou Xin 2009-6-8 Delete the details of the selected user
/// </Summary>
Public void DeleteUser ()
{
// Obtain the user ID
String strID = Request ["userid"];
String Userid = strID. Substring (0, strID. Length-1 );
// Convert to an array
String [] stridArray = Userid. Trim (). Split (',');
String SQL = "delete from loginuser where ID = '" + stridArray [0]. ToString () + "'";
For (int I = 0; I <stridArray. Length; I ++)
{
String id = stridArray [I]. ToString ();
SQL + = "or ID = '" + id + "'";
}
SqlConnection mycon = new SqlConnection ();
Mycon. ConnectionString = ConfigurationManager. ConnectionStrings ["BoBoConn"]. ToString ();
Mycon. Open ();
SqlCommand mycom = new SqlCommand (SQL, mycon );
Int n = (int) mycom. ExecuteNonQuery ();
Mycon. Close ();
If (n> 0)
{
Response. Clear ();
Response. ContentType = "application/text ";
Response. Write ("OK ");
Response. End ();
}
Else
{
Response. Clear ();
Response. ContentType = "application/text ";
Response. Write ("no ");
Response. End ();
}
}
}

:

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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