web前端|js教程
ExtJs,GridPanel,增删改
web前端-js教程
1.首先看下效果图：
2.ext代码
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///
Ext.namespace(XQH.ExtJs.Frame);
XQH.ExtJs.Frame.RoleManage = function() {
this.init();
};
Ext.extend(XQH.ExtJs.Frame.RoleManage, Ext.util.Observable, {
init: function() {
//表单
addForm = new Ext.form.FormPanel({
id: addRoleForm,
width: 460,
height: 250,
//样式
bodyStyle: margin:5px 5px 5px 5px,
frame: true,
xtype: filedset,
labelWidth: 60,
items:
[
{
xtype: fieldset,
title: 角色信息,
collapsible: true,
autoHeight: true,
autoWidth: true,
items:
[
{
xtype: extfield,
name: RoleName,
fieldLabel: 角色名称,
emptyText: 必填,
blankText: 角色名称不能为空,
allowBlank: false,
maxLength: 10,
maxLengthText: 角色不能超过10个字符,
anchor: 98%
}
]
},
{
xtype: fieldset,
title: 角色说明,
collapsible: true,
autoHeight: true,
autoWidth: true,
items:
[
{ html: 这是说明信息... }
]
}
],
reader: new Ext.data.JsonReader({
root: data,
fields: [
{ name: RoleId, mapping: RoleId, type: int },
{ name: RoleName, mapping: RoleName, type: string }
]
})
});
//新增用户窗口
addWin = new Ext.Window({
id: addRoleWin,
title: 新增角色,
width: 480,
height: 210,
//背景遮罩
modal: true,
//重置大小
resizable: false,
//当关闭按钮被点击时执行的动作
closeAction: hide,
plain: true,
buttonAlign: center,
items:addForm,
buttons:
[
{ text: 关闭, handler: function() { Ext.getCmp(addRoleWin).hide(); } },
{ text: 提交, id: tnSubmit }
]
});
//添加角色事件
function addRoleFunction() {
var submitButton = this;
submitButton.disable();
var userForm = Ext.getCmp("addRoleForm");
if (userForm.form.isValid()) {
userForm.form.doAction(submit, {
url: "/Service/SystemService/RoleService.ashx?Method=AddRole",
method: post,
waitTitle: "请稍候",
waitMsg: 正在添加数据...,
success: function(form, action) {
submitButton.enable();
Ext.getCmp( oleGD).store.reload();
userForm.ownerCt.hide();
},
failure: function(form, action) {
var tip = "新增失败!";
if (action.result.rspText != "")
tip = action.result.rspText;
Ext.Msg.alert(提示, tip);
submitButton.enable();
}
});
}
else {
submitButton.enable();
}
};
//添加按钮单击事件
function btnAddClick() {
Ext.getCmp(addRoleForm).form.reset();
Ext.getCmp("addRoleWin").setTitle(新增角色);
Ext.getCmp("addRoleWin").buttons[1].handler = addRoleFunction;
Ext.getCmp("addRoleWin").show();
};
//修改角色事件
function updateRoleFunction() {
var submitButton = this;
submitButton.disable();
var userForm = Ext.getCmp("addRoleForm");
var id = userForm.form.reader.jsonData.data[0].RoleId;
if (userForm.form.isValid()) {
userForm.form.doAction(submit, {
url: /Service/SystemService/RoleService.ashx?Method=UpdateRoleById&RoleId= + id,
method: post,
//params:{},
waitTitle: "请稍候",
waitMsg: 正在保存数据...,
success: function(form, action) {
submitButton.enable();
Ext.getCmp( oleGD).store.reload();
userForm.ownerCt.hide();
},
failure: function(form, action) {
var tip = "编辑活动保存失败！";
if (action.result.text != "" & action.result.text != null)
tip = action.result.text;
Ext.Msg.alert(提示, tip);
submitButton.enable();
}
});
}
else {
submitButton.enable();
}
};
//修改按钮单击事件
function btnUpdateClick() {
var grid = Ext.getCmp( oleGD);
if (grid.getSelectionModel().getSelections()[0] == undefined) {
Ext.Msg.alert("提示", "请选中要修改的行");
}
else {
Ext.getCmp(addRoleWin).setTitle(修改角色);
Ext.getCmp("btnSubmit").handler = updateRoleFunction;
Ext.getCmp("addRoleForm").form.reset();
var roleId = grid.getSelectionModel().getSelections()[0].data.RoleId;
var url = /Service/SystemService/RoleService.ashx?Method=GetRoleById&roleId= + roleId;
Ext.getCmp("addRoleWin").show();
Ext.getCmp("addRoleForm").load({
url: url,
waitTitle: "请稍候",
waitMsg: 正在加载数据...,
success: function(form, action) {
},
failure: function(form, action) {
var tip = "提交失败";
if (action.response.responseText != "")
tip = action.response.responseText;
Ext.Msg.alert(提示, tip);
}
});
}
};
//删除角色函数
function delRoleFunction() {
var grid = Ext.getCmp( oleGD);
if (grid.getSelectionModel().getSelections()[0] == undefined) {
Ext.Msg.alert("提示", "请选中要删除的角色");
}
else {
Ext.MessageBox.confirm(提示, 确实要删除所选的角色吗？, function(btn) {
if (btn == yes) {
var conn = new Ext.data.Connection();
conn.request
({
url: /Service/SystemService/RoleService.ashx?Method=DeleteRoleById,
params: { Id: grid.getSelectionModel().getSelections()[0].data.RoleId },
method: post,
scope: this,
callback: function(options, success, response) {
if (success) {
Ext.getCmp( oleGD).store.reload();
}
else {
Ext.MessageBox.alert("提示", "删除失败！");
}
}
});
}
});
}
};
//工具栏
toolBar = new Ext.Toolbar({
items:
[
{ text: 新增, id: tnAdd },
-,
{ text: 修改, id: tnUpdate },
-,
{ text: 删除, handler:delRoleFunction }
]
});
//新增按钮
var addUserBtn = Ext.getCmp(tnAdd);
addUserBtn.on(click, btnAddClick);
//修改按钮
var btnUpdate = Ext.getCmp(tnUpdate);
btnUpdate.on(click, btnUpdateClick);
var dataStore = new Ext.data.Store({
proxy: new Ext.data.HttpProxy({
url: /Service/SystemService/RoleService.ashx?Method=GetAllRoles
}),
reader: new Ext.data.JsonReader({
root: Table,
totalProperty: RecordCount,
id: RoleId,
fields: [RoleId, RoleName]
})
});
dataStore.load({ params: { start: 0, limit: 20} });
//grid
var roleGrid = new Ext.grid.GridPanel({
region: center,
id: oleGD,
title: 角色管理,
store: dataStore,
columns:
[
new Ext.grid.RowNumberer({ header: "编号", width: 50 }),
{ header: "RoleId", width: 50, sortable: false, dataIndex: RoleId, hidden: true },
{ header: "角色名称", width: 50, sortable: true, dataIndex: RoleName }
],
loadMask: { msg: "加载中..." },
stripeRows: true,
viewConfig: {
forceFit: true
},
sm: new Ext.grid.RowSelectionModel({ singleSelect: true }),
bbar: new Ext.PagingToolbar({
pageSize: 20,
store: dataStore,
displayInfo: true,
displayMsg: "显示第 {0} 条到 {1} 条记录，一共 {2} 条",
emptyMsg: "没有记录"
}),
tbar: toolBar
});
//布局
var roleView = new Ext.Panel({
renderTo: oleMain,
height: 550,
layout: order,
border: false,
items: [roleGrid]
});
},
destroy: function() {
}
});
3.linq代码
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace XQH.ExtJs.LinqDatabase
{
public class RoleLinqAccess
{
LinqDatabaseDataContext db = new LinqDatabaseDataContext();
///
///
///
///
///
public List GetAllRole(int start,int limit,out int total)
{
var q = from r in db.XRole
select r;
total = q.Count();
if (limit == 0)
{
return q.ToList();
}
else
{
return q.Skip(start).Take(limit).ToList();
}
}
///
///
///
public XRole GetRoleById(int id)
{
var q = from r in db.XRole
where r.RoleId == id
select r;
return q.First();
}
///
///
///
public List AddRole(XRole role)
{
db.XRole.InsertOnSubmit(role);
db.SubmitChanges();
return db.XRole.ToList();
}
///
///
///
public List DelRoleById(int id)
{
var q = from r in db.XRole
where r.RoleId == id
select r;
db.XRole.DeleteAllOnSubmit(q);
db.SubmitChanges();
return db.XRole.ToList();
}
///
///
///
public List UpdateRole(XRole role)
{
var q = from r in db.XRole
where r.RoleId == role.RoleId
select r;
foreach (XRole r in q)
{
r.RoleId = role.RoleId;
r.RoleName = role.RoleName;
}
db.SubmitChanges();
return db.XRole.ToList();
}
}
}
4.ashx代码
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///
public void GetAllRoles()
{
StringBuilder jsonData = new StringBuilder();
int start = Convert.ToInt32(Request["start"]);
int limit = Convert.ToInt32(Request["limit"]);
int total = 0;
List lsRole = roleAccess.GetAllRole(start, limit, out total);
JsonConvert json = new JsonConvert();
jsonData = json.ToGridPanel(lsRole, total);
Response.Write(jsonData);
Response.End();
}
///
/// ///
public void GetRoleById()
{
StringBuilder jsonData = new StringBuilder();
bool success = false;
string rspText = string.Empty;
string id = Request["RoleId"].ToString();
try
{
XRole role = roleAccess.GetRoleById(Convert.ToInt32(id));
success = true;
rspText = "success";
JsonConvert json = new JsonConvert();
jsonData = json.ToFormPanel(success, rspText, role);
}
catch (Exception ex)
{
success = false;
rspText = ex.Message;
}
Response.Write(jsonData);
Response.End();
}
///
public void AddRole()
{
string jsonStr = string.Empty;
bool success = false;
string rspText = string.Empty;
string roleName = Request["RoleName"].ToString();
XRole role = new XRole();
role.RoleName = roleName;
try
{
roleAccess.AddRole(role);
success = true;
rspText = "新增成功!";
}
catch (Exception ex)
{
success = false;
rspText = ex.Message;
}
jsonStr = "{success:" + success.ToString().ToLower() + ",message:\" + rspText + "!}";
Response.Write(jsonStr);
Response.End();
}
///
public void UpdateRoleById()
{
string jsonStr = string.Empty;
bool success = false;
string rspText = string.Empty;
string RoleId = Request["RoleId"].ToString();
string RoleName = Request["RoleName"].ToString();
XRole role = new XRole();
role.RoleId = Convert.ToInt32(RoleId);
role.RoleName = RoleName;
try
{
roleAccess.UpdateRole(role);
success = true;
rspText = "修改成功!";
}
catch (Exception ex)
{
success = false;
rspText = ex.Message;
}
jsonStr = "{success:" + success.ToString().ToLower() + ",message:\" + rspText + "!}";
Response.Write(jsonStr);
Response.End();
}
///
public void DeleteRoleById()
{
string jsonStr = string.Empty;
bool success = false;
string rspText = string.Empty;
try
{
int id = Convert.ToInt32(Request["Id"].ToString());
List lsRole = roleAccess.DelRoleById(id);
success = true;
rspText = "success";
}
catch (Exception ex)
{
success = true;
rspText = ex.Message;
}
jsonStr = "{success:" + success.ToString().ToLower() + ",message:\" + rspText + "!}";
Response.Write(jsonStr);
Response.End();
}
