1using System;
  2using System.Data;
  3using System.Configuration;
  4using System.Collections;
  5using System.Web;
  6using System.Web.Security;
  7using System.Web.UI;
  8using System.Web.UI.WebControls;
  9using System.Web.UI.WebControls.WebParts;
 10using System.Web.UI.HtmlControls;
 11//该源码下载自www.51aspx.com(５１ａｓｐｘ．ｃｏｍ)
 12
 13public partial class List : System.Web.UI.Page
 14...{
 15    SQLHelper helper = new SQLHelper();
 16    protected void Page_Load(object sender, EventArgs e)
 17    ...{
 18        if (!Page.IsPostBack)
 19        ...{
 20            BindListView(treeList);
 21        }
 22    }
 23    public void BindListView(TreeView treeView)
 24    ...{
 25        //清空树的所有节点
 26        treeView.Nodes.Clear();
 27
 28        //创建根节点
 29        TreeNode rootNode = new TreeNode();
 30        rootNode.Text = "图片目录";
 31        rootNode.Value = "1";
 32        rootNode.ImageUrl = "~/Image/Root.gif";
 33        rootNode.Expanded = true;
 34        rootNode.Selected = true;
 35
 36        //添加根节点
 37        treeView.Nodes.Add(rootNode);
 38
 39        // 获取所有节点信息
 40        DataTable dataTable = helper.getpicinfo();
 41        //创建其他节点
 42        CreateChildNode(rootNode, dataTable);
 43    }
 44    // 添加子节点
 45    private void CreateChildNode(TreeNode parentNode, DataTable dataTable)
 46    ...{
 47        DataRow[] rowList = dataTable.Select("ParentID='" + parentNode.Value + "'");
 48        foreach (DataRow row in rowList)
 49        ...{   /**////创建新节点
 50            TreeNode node = new TreeNode();
 51            /**////设置节点的属性
 52            node.Text = row["ImgName"].ToString();
 53            node.Value = row["ImgID"].ToString();
 54            if (row["isDir"].ToString() == "True")
 55            ...{
 56                node.Expanded = true;
 57                node.Target = "_self";
 58                node.ImageUrl = "~/Image/Dir.gif";
 59            }
 60            else
 61            ...{
 62                node.Target = "_blank";
 63                node.ImageUrl = "~/Image/Picture.gif";
 64            }
 65            node.ImageToolTip = row["ImgUrl"].ToString();
 66            parentNode.ChildNodes.Add(node);
 67            /**////递归调用，创建其他节点
 68            CreateChildNode(node, dataTable);
 69        }
 70    }
 71    
 72    //显示图片
 73    protected void treeList_SelectedNodeChanged(object sender, EventArgs e)
 74    ...{
 75        if (treeList.SelectedNode.ImageToolTip != "")
 76        ...{
 77            imagePic.ImageUrl = treeList.SelectedNode.ImageToolTip;
 78            imagePic.Visible = true;
 79        }
 80        
 81    }
 82    // 上传图片
 83    protected void btnAddPicture_Click(object sender, EventArgs e)
 84    ...{
 85        if (treeList.SelectedNode == null)
 86        ...{
 87            //显示提示信息
 88            Response.Write("<script>window.alert('请选择合适的目录上传')</script>");
 89            return;
 90        }
 91        else if (!helper.checkdir(treeList.SelectedValue))
 92        ...{
 93            //显示提示信息
 94            Response.Write("<script>window.alert('请选择合适的目录上传')</script>");
 95            return;
 96        }
 97        Response.Redirect("~/Upload.aspx?ImgID=" + treeList.SelectedValue);
 98    }
 99    // 新建目录
100    protected void btnNewDir_Click(object sender, EventArgs e)
101    ...{
102        if (treeList.SelectedNode == null)
103        ...{
104            /**////显示提示信息
105            Response.Write("<script>window.alert('请选择合适的目录添加')</script>");
106            return;
107        }
108        else if (!helper.checkdir(treeList.SelectedValue))
109        ...{
110            //显示提示信息
111            Response.Write("<script>window.alert('请选择合适的目录添加')</script>");
112            return;
113        }
114        Response.Redirect("~/Build.aspx?ImgID=" + treeList.SelectedValue);
115    }
116    // 修改项目名称
117    protected void btnEditNode_Click(object sender, EventArgs e)
118    ...{
119        if (treeList.SelectedNode == null)
120        ...{
121            /**////显示提示信息
122            Response.Write("<script>window.alert('请选择合适的修改项目')</script>");
123            return;
124        }
125        else if (treeList.SelectedValue == "1")
126        ...{
127            //显示提示信息
128            Response.Write("<script>window.alert('根目录不能修改名称')</script>");
129            return;
130        }
131
132        Response.Redirect("~/Edit.aspx?" +
133                          "ImgID=" + treeList.SelectedValue + "&" +
134                          "ImgName=" + Server.HtmlEncode(treeList.SelectedNode.Text));
135    }
136
137    //删除项目
138    protected void btnDeleteNode_Click(object sender, EventArgs e)
139    ...{
140        if (treeList.SelectedNode == null)
141        ...{
142            /**////显示提示信息
143            Response.Write("<script>window.alert('请选择合适的删除对象')</script>");
144            return;
145        }
146        else if (treeList.SelectedValue == "1")
147        ...{
148            //显示提示信息
149            Response.Write("<script>window.alert('根目录不能删除')</script>");
150            return;
151        }
152        else if (helper.checkchildnode(treeList.SelectedValue))
153        ...{
154            //显示提示信息
155            Response.Write("<script>window.alert('请先删除目录下的文件和子目录')</script>");
156            return;
157        }
158        // 删除节点
159        helper.deleteNode(treeList.SelectedValue);
160        // 显示提示信息
161        Response.Write("<script>window.alert('删除成功！')</script>");
162        BindListView(treeList);
163        imagePic.Visible = false;
164    }
165}
166