如何在树形视图中显示节点详细信息

问题描述

嗨

我有一个树视图，其中包含以下数据，例如ex

-Asp.net
-控件
-文本框
+验证者

因此，当用户单击文本框节点时，我必须在标签中显示文本框的完整详细信息，并且该标签应仅位于文本框下方.


在此先感谢

Hi

I have a treeview with following data for ex

-Asp.net
-Controls
-Textbox
+validators

so when user clicks on the textbox node i have to show in a label the complete details of the textbox and that label should come under the textbox only.


thanks in advance

推荐答案

<asp:TreeView ID="TreeView1" runat="server"
           onselectednodechanged="TreeView1_SelectedNodeChanged">
       <Nodes>
         <asp:TreeNode Text="TextBox"  >

         </asp:TreeNode>
         <asp:TreeNode Text="DropdownList"></asp:TreeNode>
         <asp:TreeNode Text="Button"></asp:TreeNode>
       </Nodes>
       </asp:TreeView>

在文件后面的代码中，您需要编写以下代码

In code behind file you need to write below code

protected void TreeView1_SelectedNodeChanged(object sender, EventArgs e)
  {
      showControlDetails.Visible = true;
      TreeView rootview = (TreeView)sender;
      Control txtchck =null;

      switch (rootview.SelectedNode.Text)
      {
          case ("TextBox"):
              txtchck = new TextBox();
              break;
          case ("DropdownList"):
              txtchck = new DropDownList();
              break;
          case ("Button"):
              txtchck = new Button();
              break;

      }
      if (txtchck != null)
      {
          Type controlType = txtchck.GetType();

          PropertyInfo[] properties = controlType.GetProperties();

          foreach (PropertyInfo controlProperty in properties)
          {
              TreeNode tnd = new TreeNode();
              tnd.Text = controlProperty.Name;
              rootview.SelectedNode.ChildNodes.Add(tnd);

          }
      }
  }

这次只是为了添加子节点

我将对其进行修改并在此处发布以显示为工具提示

并且您应该导入名称空间 System.Reflection;
在这里，我只为文本框做过操作，您可以对其进行修改以满足您的要求
我希望您知道如何将节点添加到treenode

最好的

Here this time it is just for adding sub nodes

I''ll modify it and post here to show as tooltip

And you should import namespaces System.Reflection;
Here i did only for textbox you can modify it to fulfill your requirement
and i hope you know how to add nodes to treenode

All the Best

<asp:treeview id="TreeView1" runat="server" xmlns:asp="#unknown">
      <nodes>
        <asp:treenode text="TextBox">

        </asp:treenode>
        <asp:treenode text="DropdownList"></asp:treenode>
        <asp:treenode text="Button"></asp:treenode>
      </nodes>
      </asp:treeview>

<div id="showControlDetails1" style="   background-color:#136012;   position:fixed;left:500px;top:600px; border-color:Red;">
     dsfsdfsdfsdf
    </div>

之后，您需要添加javascript文件

After that you need to add javascript file

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