【转载】Coolite之TreePanel右键功能菜单

Coolite之TreePanel右键功能菜单

用Coolite有段时间了，项目也做了几个，总体来说功能还是很不错。现有拿出TreePanel右键功能菜单和大家交流下。

功能如上图：

要点。1、TreePanel右键菜单显示与后台交互。

2、win窗口数据显示与取值

3、确定删除操作

现在具体功能详细说明下。

1、右键功能菜单

 1 <ext:Menu ID="cmenu" runat="server"> 
 2<Items>
 3            <ext:MenuItem ID="copyItems" runat="server" Text="添加节点" Icon="Add">
 4              <Listeners>
 5                    <Click Handler="Coolite.AjaxMethods.readInfo(this.parentMenu.node.id,'add');" />                    
 6                </Listeners>    
 7             </ext:MenuItem>
 8            <ext:MenuItem ID="editItems" runat="server" Text="修改节点" Icon="Anchor">
 9             <Listeners>
10                    <Click Handler="Coolite.AjaxMethods.readInfo(this.parentMenu.node.id,'edit');" />
11              </Listeners>
12             </ext:MenuItem>
13             <ext:MenuItem ID="moveItems" runat="server" Text="删除节点" Icon="Delete">
14                 <Listeners>
15                      <Click Handler="Coolite.AjaxMethods.del(this.parentMenu.node.id,'del');" />
16              </Listeners>
17             </ext:MenuItem>
18        </Items>
19</ext:Menu>

需要注意 <Click Handler="Coolite.AjaxMethods.del(this.parentMenu.node.id,'del');" />　是Coolite　异步调用1-2 TreePanel　代码

<ext:FitLayout ID="FitLayout1" runat="server">
                        <ext:TreePanel ID="TreePanel1" runat="server"  AutoShow="true"    Header="false"
                          Title="Tree" AutoHeight="true"  Border="false" ContextMenuID="cmenu"
                          >
                         <TopBar>
                            <ext:Toolbar ID="Toolbar1" runat="server">
                                <Items>
                             <ext:ToolbarFill/>
                                <ext:ToolbarButton ID="ToolbarButton1" runat="server" IconCls="icon-expand-all">
                                                    <Listeners>
                                                        <Click Handler="#{TreePanel1}.root.expand(true);" />
                                                    </Listeners>
                                                    <ToolTips>
                                                        <ext:ToolTip ID="ToolTip1" IDMode="Ignore" runat="server" Html="Expand All" />
                                                    </ToolTips>
                                                </ext:ToolbarButton>
                                                <ext:ToolbarButton ID="ToolbarButton2" runat="server" IconCls="icon-collapse-all">
                                                    <Listeners>
                                                        <Click Handler="#{TreePanel1}.root.collapse(true);" />
                                                    </Listeners>
                                                    <ToolTips>
                                                        <ext:ToolTip ID="ToolTip2" IDMode="Ignore" runat="server" Html="Collapse All" />
                                                    </ToolTips>
                                                </ext:ToolbarButton>
                                </Items>
                            </ext:Toolbar>
                          </TopBar>
                            <Listeners> 
                                <ContextMenu  Handler=" #{cmenu}.node=node;#{cmenu}.showAt(e.getPoint());" />
                                <BeforeLoad Fn="nodeLoad" />
                                 <Click Handler="addTab(node);" /> 
                            </Listeners>
                           <Root>
                                <ext:AsyncTreeNode NodeID="0" Text="节点管理" />
                            </Root>
                            </ext:TreePanel>
                 </ext:FitLayout>

 右键功能菜单调用<ContextMenu  Handler=" #{cmenu}.node=node;#{cmenu}.showAt(e.getPoint());" />

1-3 Tree 数据源绑定（后台代码）

 protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack && !Ext.IsAjaxRequest)
        {
            AsyncTreeNode atn = new AsyncTreeNode();
            atn.NodeID = "0";
            atn.Text = "功能菜单";
            atn.Expanded = true;
            NodeLoad("0");

        }
    }

    #region 0、数据源绑定
    [AjaxMethod]
    public string NodeLoad(string nodeID)
    {
                return TreeJson;//返回Tree的JSon数据

/* 返回数据如下格式：
{result:"[\n{id:'10',text:'部室主任',parentID:'7',path:'7|10|',url:'Role/Role_list.aspx',openType:'1',type:'1',orderNum:'0',pass:'1',mark:'2222222222222222',leaf:true},\n{id:'14',text:'开发',parentID:'7',path:'7|14|',url:'开发',openType:'0',type:'10000',orderNum:'0',pass:'1',mark:'开发',leaf:true}]"}
*/
    }
    #endregion

2、win窗口　设计

 1<ext:Window ID="Window1"  ShowOnLoad="false" 
 2    BodyStyle="padding:0pc" runat="server"   BodyBorder="false"
 3    Collapsible="false" Icon="Application"    Frame="false" Width="350"
 4    AutoHeight="true"  Title="节点管理">
 5         <LoadMask ShowMask="true" />
 6        <Body>   
 7                       <ext:Hidden ID="Hidden_ID" runat="server" Text="0"/>
 8                    <ext:Hidden ID="Hidden_TreeParentID" runat="server" Text="0"/>
 9            <ext:FormPanel ID="FormPanel1" runat="server" BodyStyle="padding:1px;" ButtonAlign="Center"
10                Frame="true" BodyBorder="false"   MonitorValid="true"  Header="false">
11                <Defaults >
12                    <ext:Parameter Name="Anchor" Value="100" Mode="Value"></ext:Parameter>
13                </Defaults>
14                 <Listeners>
15                <ClientValidation Handler="#{Button1}.setDisabled(!valid);" />
16            </Listeners>
17                <Body>
18                    <ext:FormLayout ID="FormLayout1" runat="server"   LabelAlign="Left" LabelWidth="60">
19                    <ext:Anchor>
20                       <ext:TextField ID="txf_TreeName"   FieldLabel="节点名称"  BlankText="节点名称不能为空！" AllowBlank="false" runat="server"/> 
21                    </ext:Anchor>
22                      <ext:Anchor >
23                       <ext:TextField ID="txf_Url" FieldLabel="URL"    runat="server"/> 
24                    </ext:Anchor>
25                    <ext:Anchor  Horizontal="0.8">
26                        <ext:RadioGroup ID="RadioGroup1" FieldLabel="打开模式"   runat="server" >
27                        <Items>
28                           <ext:Radio ID="Radio1" runat="server"  AutoWidth="true" BoxLabel="无" Checked="true"></ext:Radio>
29                            <ext:Radio ID="Radio2" runat="server" AutoWidth="true" BoxLabel="自身" ></ext:Radio>
30                             <ext:Radio ID="Radio3" runat="server" AutoWidth="true" BoxLabel="新窗口" ></ext:Radio>
31                        </Items>
32                        </ext:RadioGroup> 
33                    </ext:Anchor> 
34                    <ext:Anchor>
35                        <ext:TextField ID="txf_type" EmptyText="0"  FieldLabel="显示类型" runat="server" Visible="false" >
36                        </ext:TextField>  
37                    </ext:Anchor>       
38                      <ext:Anchor >
39                          <ext:TextArea ID="ta_Mark" runat="server"    FieldLabel="功能描述" >
40                          </ext:TextArea>
41                    </ext:Anchor>                  
42                  </ext:FormLayout>
43                </Body>
44                <Buttons>
45                    <ext:Button ID="Button1" runat="server" Icon="Add" Text="更新">
46                    <Listeners>
47                     <Click Handler="if(!#{txf_TreeName}.validate()){Ext.Msg.alert('提示','节点名称不能为空！'); return false;}" />
48                    </Listeners>
49                    <AjaxEvents>
50                        <Click  OnEvent="btn_upData_Ajax">
51                        <EventMask CustomTarget="={#{Window1}.body}"  Target="CustomTarget" ShowMask="true" MinDelay="20" />
52                        </Click>
53                    </AjaxEvents>
54                    </ext:Button>
55                     <ext:Button ID="Button2" runat="server" Icon="Cancel" Text="取消">
56                        <Listeners>
57                            <Click Handler="#{FormPanel1}.getForm().reset();#{Window1}.hide(null);" />
58                        </Listeners>
59                    </ext:Button>
60                </Buttons>
61            </ext:FormPanel>
62                 
63        </Body>
64
65    </ext:Window>

1、清空表单内容：更新完成后清空FromPanel中已有数据 <Click Handler="#{FormPanel1}.getForm().reset();#{Window1}.hide(null);" />

 2、锁定更新区域：更新时锁定操作区域<EventMask CustomTarget="={#{Window1}.body}"  Target="CustomTarget" ShowMask="true" MinDelay="20" />

3、表单验证： MonitorValid="true"  是一个FromPanel全局验证。我们只需要在需要验证的控件上添加BlankText="节点名称不能为空！" AllowBlank="false"，在按钮时就能触发全局表单验证。当然如你想个性化验证，只需要在按钮上添加 <Click Handler="if(!#{txf_TreeName}.validate()){Ext.Msg.alert('提示','节点名称不能为空！'); return false;}" />　也可以验证。

TreePanel上右键功能操作Cs代码

 
 [AjaxMethod]//win　显示
    public void readInfo(string id, string action)
    {

      this.Window1.Show();
    }

#region 0-0 操作判断
    [AjaxMethod]//确定、删除
    public void del(string id, string action)
    {
        switch (action)
        {
            case "del":
                Ext.Msg.Confirm("提示", "是否确定删除?", new MessageBox.ButtonsConfig
                {
                    Yes = new MessageBox.ButtonConfig
                    {
                        Handler = "Coolite.AjaxMethods.TreeNote_Del(" + id + ");",
                        Text = "确 定"
                    },
                    No = new MessageBox.ButtonConfig
                    {
                        Text = "取 消"
                    }
                }).Show();
                break;
        }
    }
       #endregion

#region  2、删除操作　
    [AjaxMethod]
    public void TreeNote_Del(string treeNote)
    {
        int dt = TD.ArrayUpdata(treeNote, " set  pass=4");
        if (dt == 1)
        {
            Ext.Msg.Alert("提示", "更新成功!").Show();
            Ext.DoScript(TreePanel1.ClientID + ".root.reload();");
        }
        else Ext.Msg.Alert("提示", "更新失败!").Show();

    }
    #endregion

基本上就是这些代码。欢迎大家提出更好的建议！