C1TreeView后台绑定DataTable，递归

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问题描述：C1TreeView后台递归绑定
问题解答：直接上代码
前台代码（直接拖入一个C1TreeView控件）
      <wijmo:C1TreeView ID="C1TreeView1" runat="server" ShowCheckBoxes="true">
      </wijmo:C1TreeView>
后台代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using C1.Web.Wijmo.Controls.C1TreeView;

public partial class tree : System.Web.UI.Page
{
DataTable areaDT = new DataTable();

protected void Page_Load(object sender, EventArgs e)
{
      setDT();
      C1TreeViewNode node = new C1TreeViewNode();
      DataRow[] far = areaDT.Select("subid=0");
      DataRow drfar = far[0];
      node.Text = drfar[1].ToString();
      this.C1TreeView1.Nodes.Add(node);


      DataRow[] drarea = areaDT.Select("subid=1");
      for (int i = 0; i < drarea.Length; i++)
      {
         AddArea(this.C1TreeView1.Nodes[0].Nodes, drarea);
      }
}

private void AddArea(C1TreeViewNodeCollection tvn, DataRow dr)
{
      int areaid = Convert.ToInt32(dr[0]);
      string areaname = dr[1].ToString().Trim();

      C1TreeViewNode newnode = new C1TreeViewNode();
      newnode.Text = areaname;
      tvn.Add(newnode);
      C1TreeViewNodeCollection tvn1 = newnode.Nodes;

      DataRow[] drssuperarea = areaDT.Select("subid=" + areaid);
      for (int i = 0; i < drssuperarea.Length; i++)
      {
         AddArea(tvn1, drssuperarea);
      }

}

private void setDT()
{
      areaDT.Columns.Add("id");
      areaDT.Columns.Add("name");
      areaDT.Columns.Add("subid");

      DataRow dr = areaDT.NewRow();
      dr["id"] = 1;
      dr["name"] = "父文件";
      dr["subid"] = 0;
      areaDT.Rows.Add(dr);

      dr = areaDT.NewRow();
      dr["id"] = 2;
      dr["name"] = "子文件1";
      dr["subid"] = 1;
      areaDT.Rows.Add(dr);

      dr = areaDT.NewRow();
      dr["id"] = 3;
      dr["name"] = "孙文件";
      dr["subid"] = 2;
      areaDT.Rows.Add(dr);
}
}

效果截图

Alice · Alice

回复 1楼rijun的帖子

非常感谢您提供的源代码，为需要解决此问题的用户提供帮助。
已经发送金币奖励。

yingri · yingri

就有一点小BUG，你看看
         DataRow[] drarea = areaDT.Select("subid=1");
         for (int i = 0; i < drarea.Length; i++)
         {
               setAddArea(this.C1TreeView1.Nodes[0].Nodes, drarea[i]);
         }

      }

      private void setAddArea(C1TreeViewNodeCollection tvn, DataRow dr)
      {
         int areaid = Convert.ToInt32(dr[0]);
         string areaname = dr[1].ToString().Trim();

         C1TreeViewNode newnode = new C1TreeViewNode();
         newnode.Text = areaname;
         tvn.Add(newnode);
         C1TreeViewNodeCollection tvn1 = newnode.Nodes;

         DataRow[] drssuperarea = areaDT.Select("subid=" + areaid);
         for (int i = 0; i < drssuperarea.Length; i++)
         {
               setAddArea(tvn1, drssuperarea[i]);
         }

      }

yingri · yingri

就有一点小BUG，你看看
         DataRow[] drarea = areaDT.Select("subid=1");
         for (int i = 0; i < drarea.Length; i++)
         {
               setAddArea(this.C1TreeView1.Nodes[0].Nodes, drarea[i]);
         }

      }

      private void setAddArea(C1TreeViewNodeCollection tvn, DataRow dr)
      {
         int areaid = Convert.ToInt32(dr[0]);
         string areaname = dr[1].ToString().Trim();

         C1TreeViewNode newnode = new C1TreeViewNode();
         newnode.Text = areaname;
         tvn.Add(newnode);
         C1TreeViewNodeCollection tvn1 = newnode.Nodes;

         DataRow[] drssuperarea = areaDT.Select("subid=" + areaid);
         for (int i = 0; i < drssuperarea.Length; i++)
         {
               setAddArea(tvn1, drssuperarea[i]);
         }

      }

yingri · yingri

如果有三层的会出问题，给你修改好了，测试表如下。
private void setDT()
      {
         areaDT.Columns.Add("id");
         areaDT.Columns.Add("name");
         areaDT.Columns.Add("subid");

         DataRow dr = areaDT.NewRow();
         dr["id"] = 1;
         dr["name"] = "父文件";
         dr["subid"] = 0;
         areaDT.Rows.Add(dr);

         dr = areaDT.NewRow();
         dr["id"] = 2;
         dr["name"] = "子文件3";
         dr["subid"] = 1;
         areaDT.Rows.Add(dr);
         dr = areaDT.NewRow();
         dr["id"] = 5;
         dr["name"] = "子文件2";
         dr["subid"] = 1;
         areaDT.Rows.Add(dr);

         dr = areaDT.NewRow();
         dr["id"] = 6;
         dr["name"] = "子文件1";
         dr["subid"] = 1;
         areaDT.Rows.Add(dr);

         dr = areaDT.NewRow();
         dr["id"] = 3;
         dr["name"] = "孙文件";
         dr["subid"] = 2;
         areaDT.Rows.Add(dr);

         dr = areaDT.NewRow();
         dr["id"] = 4;
         dr["name"] = "孙文件1";
         dr["subid"] = 2;
         areaDT.Rows.Add(dr);
      }

Alice · Alice

yingri 发表于 2016-10-17 10:40
如果有三层的会出问题，给你修改好了，测试表如下。
private void setDT()
{

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[ASP.NET Wijmo] C1TreeView后台绑定DataTable，递归

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