• Treevi中的checkbox联动选择,以及Treeview的生成(即选择或取消复选框,其自选框同时选择或取消) 子曰


    前台.aspx加上一段JavaScript代码

    // 点击复选框时触发事件
    function postBackByObject()
    {
          var o = window.event.srcElement;
          if (o.tagName == "INPUT" && o.type == "checkbox")
          {
             __doPostBack("","");
          }

       }

    后台.aspx.cs

      if (!IsPostBack)
            {
                 TreeView1.Attributes.Add("onclick", "postBackByObject()");//javascript控制checkbox选择框
            }

    **************************************************


       using System;
    using System.Data;
    using System.Configuration;
    using System.Collections.Generic;
    using System.Web;
    using System.Web.Security;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Web.UI.WebControls.WebParts;
    using System.Web.UI.HtmlControls;
    using System.Collections;
    using System.Drawing;
    using System.Text;
    using System.Collections.Generic;

    //using System.Windows.Forms;

    public partial class FileBooks_UpFilesAdd : System.Web.UI.Page
    {
        //private TreeView treeView1;

        //模板
        Model.Files MR = new Model.Files();
        //业务
        BLL.Files BR = new BLL.Files();
        protected void Page_Load(object sender, EventArgs e)
        {
            //DataSet ds=new DataSet();
            //DBUtility.SqlHelper sql = new DBUtility.SqlHelper();
            //ds = sql.ExecuteQuery(System.Configuration.ConfigurationManager.ConnectionStrings["DB"].ConnectionString, CommandType.Text, "select *  from Department ", null);
            //DataView dvTree = new DataView(ds.Tables[0]);
            //this.ViewState["ds"] = ds;
            ////AddTree(0, (TreeNode)null, dvTree);
            //AddTree(0, (TreeNode)null);

            LoginLogic.MatchLoad("../", "FileBooks_UpFilesAdd");
            if (!IsPostBack)
            {
                DropLoadSet();

                Panel1.Visible = false;
                Panel2.Visible = false;
                TreeView1.Attributes.Add("onclick", "postBackByObject()");//javascript控制checkbox选择框
                this.btnOk.Visible = false;
            }

        }
        public void DropLoadSet()
        {

            //密级
            KeyValue_MJ.DataTextField = "Text";
            KeyValue_MJ.DataValueField = "Value";
            KeyValue_MJ.DataSource = EnumGet.MiJiGetEnum();
            KeyValue_MJ.DataBind();
            KeyValue_MJ.SelectedIndex = KeyValue_MJ.Items.Count - 1;
            //紧急
            KeyValue_JJDJ.DataTextField = "Text";
            KeyValue_JJDJ.DataValueField = "Value";
            KeyValue_JJDJ.DataSource = EnumGet.JinJiGetEnum();
            KeyValue_JJDJ.DataBind();
            KeyValue_JJDJ.SelectedIndex = KeyValue_JJDJ.Items.Count - 1;
            //文件分类
            KeyValue_WJFL.DataTextField = "Text";
            KeyValue_WJFL.DataValueField = "Value";
            KeyValue_WJFL.DataSource = EnumGet.WenJianGetEnum();
            KeyValue_WJFL.DataBind();
            KeyValue_WJFL.SelectedIndex = KeyValue_WJFL.Items.Count - 1;
            //公文
            KeyValue_GWLB.DataTextField = "Text";
            KeyValue_GWLB.DataValueField = "Value";
            KeyValue_GWLB.DataSource = EnumGet.GongWenGetEnum();
            KeyValue_GWLB.DataBind();
            KeyValue_GWLB.SelectedIndex = KeyValue_GWLB.Items.Count - 1;
            //卷案
            KeyValue_SSJA.DataTextField = "ANMC";
            KeyValue_SSJA.DataValueField = "ID";
            KeyValue_SSJA.DataSource = EnumGet.RollGetEnum();
            KeyValue_SSJA.DataBind();
            KeyValue_SSJA.SelectedIndex = KeyValue_SSJA.Items.Count - 1;

        }
        /// <summary>
        /// 上传一个文件
        /// </summary>
        /// <returns></returns>
        public string UPdateFile()
        {
            if (!string.IsNullOrEmpty(this.KeyValue_FJPath.PostedFile.FileName))
            {
                string fulname = this.KeyValue_FJPath.PostedFile.FileName;
                string filename = fulname.Substring(fulname.LastIndexOf("//") + 1);
                string type = fulname.Substring(fulname.LastIndexOf(".") + 1);
                if (type == "aspx" || type == "asp" || type == "exe")
                {
                    throw new Exception("不允许上传执行性文件");
                }
                string GuidStr = Guid.NewGuid().ToString() + "-" + filename;
                string FileUpdatePathFull = AppDomain.CurrentDomain.BaseDirectory + "FileBooks//UpLoadFiles//" + GuidStr;
                this.KeyValue_FJPath.PostedFile.SaveAs(FileUpdatePathFull);
                return GuidStr;
            }
            else
            {
                return "";
            }
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            try
            {
                if (this.TextBox1.Text == "")
                {
                    throw new Exception("可查看人员不能为空!");
                }
                if (KeyValue_WJH.Text == "")
                {
                    throw new Exception("文件号不能为空!");
                }
                if (KeyValue_BJBT.Text == "")
                {
                    throw new Exception("文件标题不能为空!");
                }

                DateTime QKeyValue_FWRQ = new DateTime();
                if (!DateTime.TryParse(KeyValue_FWRQ.Text, out QKeyValue_FWRQ))
                {
                    throw new Exception("发文日期格式不正确!");
                }
                int QDYYS = 0;
                if (!int.TryParse(KeyValue_DYYS.Text, out QDYYS))
                {
                    throw new Exception("打印页数不正确!");
                }
                int QWJYS = 0;
                if (!int.TryParse(KeyValue_WJYS.Text, out QWJYS))
                {
                    throw new Exception("文件页数不正确!");
                }
                MR.READNAME = TextBox1.Text;
                MR.WJH = KeyValue_WJH.Text;
                MR.BJBT = KeyValue_BJBT.Text;
                MR.FWDW = KeyValue_FWDW.Text;
                MR.MJ = KeyValue_MJ.SelectedValue;
                MR.WJFL = KeyValue_WJFL.SelectedValue;
                MR.WJYS = QWJYS;
                MR.BZ = KeyValue_BZ.Text;
                MR.FJPath = UPdateFile();
                MR.WJZTC = KeyValue_WJZTC.Text;
                MR.WJFBT = KeyValue_WJFBT.Text;
                MR.FWRQ = QKeyValue_FWRQ;
                MR.JJDJ = KeyValue_JJDJ.SelectedValue;
                MR.GWLB = KeyValue_GWLB.SelectedValue;
                MR.DYYS = QDYYS;
                MR.SSJA = KeyValue_SSJA.SelectedValue;
                MR.SCR = SessionInclude.SessionId;
                BR.Add(MR);
                MessageBox.Show("添加成功");
                KeyValue_WJH.Text = "";
                KeyValue_BJBT.Text = "";
                KeyValue_FWDW.Text = "";
                KeyValue_WJYS.Text = "";
                KeyValue_WJZTC.Text = "";
                KeyValue_WJFBT.Text = "";
                KeyValue_FWRQ.Text = "";
                KeyValue_DYYS.Text = "";

                TextBox1.Text = "";

            }
            catch (Exception exp)
            {
                MessageBox.Show(exp.Message);

            }

        }
        protected void LinbAdd_Click(object sender, EventArgs e)
        {
            Panel1.Visible = true;
        }
        protected void RadioButtonList1_SelectedIndexChanged(object sender, EventArgs e)
        {

            DataSet ds = new DataSet();
            DBUtility.SqlHelper sql = new DBUtility.SqlHelper();
            string treeSql = "";
            if (RadioButtonList1.SelectedValue.Equals("0"))//以部门选择可以阅读人员
            {
                this.CheckBoxList1.Visible = false;
                this.TreeView1.Visible = true;
                treeSql = "select *  from Department";
                ds = sql.ExecuteQuery(System.Configuration.ConfigurationManager.ConnectionStrings["DB"].ConnectionString, CommandType.Text, treeSql.ToString(), null);
                DataView dvTree = new DataView(ds.Tables[0]);
                this.ViewState["ds"] = ds;
                this.TreeView1.Nodes.Clear();
                //AddTree(0, (TreeNode)null, dvTree);
                AddTree(0, (TreeNode)null);
            }
                //以角色选择可以阅读的人员
            else
            {
                this.TreeView1.Visible = false;
                this.CheckBoxList1.Visible = true;
                treeSql = "select * from User_Priv";
                ds = sql.ExecuteQuery(System.Configuration.ConfigurationManager.ConnectionStrings["DB"].ConnectionString, CommandType.Text, treeSql.ToString(), null);
                this.CheckBoxList1.DataTextField = "PrivName";
                this.CheckBoxList1.DataValueField = "PrivId";
                CheckBoxList1.DataSource = ds;
                CheckBoxList1.DataBind();
            }


            Panel2.Visible = true;


        }
       

        //递归添加树的节点 参数ParentID为树的最大父结点
        public void AddTree(int ParentID, TreeNode pNode)
        {
            DataSet ds = (DataSet)this.ViewState["ds"];
            DataView dvTree = new DataView(ds.Tables[0]);
            //过滤ParentID,得到当前的所有子节点 ParentID为父节点ID
            dvTree.RowFilter = "[parentDept] = " + ParentID;

            //循环递归
            foreach (DataRowView Row in dvTree)
            {
                //声明节点
                TreeNode Node = new TreeNode();
                ////绑定超级链接
                //Node.NavigateUrl = "List.aspx?Item_ID=" + Row["Item_ID"].ToString();
                //开始递归
                if (pNode == null)
                {
                    //添加根节点
                    Node.Text = Row["DeptName"].ToString();
                    Node.Value = Row["ID"].ToString();
                    TreeView1.Nodes.Add(Node);
                    //Node.Expanded = true; //节点状态展开
                    AddTree(Int32.Parse(Row["ID"].ToString()), Node);    //再次递归
                }
                else
                {
                    //添加当前节点的子节点
                    Node.Text = Row["DeptName"].ToString();
                    Node.Value = Row["ID"].ToString();
                    pNode.ChildNodes.Add(Node);
                    //pNode.Nodes.Add(Node);
                    //Node.Expanded = true; //节点状态展开
                    AddTree(Int32.Parse(Row["ID"].ToString()), Node);     //再次递归
                }
            }

        }

        protected void TreeView1_SelectedNodeChanged(object sender, EventArgs e)
        {
            //int departmentId = Convert.ToInt32(this.TreeView1.SelectedNode.Value);
            //TreeView1.Attributes.Add("onclick", "postBackByObject()");
            //SetChildChecked(e.no);

        }
        /// <summary>
        /// treeview中的checkbox选择项发生变化时触发该事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void TreeView1_TreeNodeCheckChanged(object sender, TreeNodeEventArgs e)
        {

            SetChildChecked(e.Node);

            this.btnOk.Visible = true;
          
            List<Int32> depId = new List<int>();
            string s = "";
            foreach (TreeNode t in this.TreeView1.CheckedNodes)
            {
                s += t.Text + ",";
                depId.Add(Convert.ToInt32(t.Value));//获取所选部门ID
            }
            //foreach (int a in depId)
            //{
            //    Response.Write(a.ToString());
            //}
            //Response.Write(s);
            if (depId.Count!=0)
            {
                StringBuilder sb = new StringBuilder();//拼接查询字符串
                sb.Append("select UserName  from Users where DeptId in");
                sb.Append("(");
                foreach (int a in depId)
                {
                    sb.Append(a);
                    sb.Append(",");
                }
                sb.Remove(sb.Length - 1, 1);
                sb.Append(")");

                DataSet ds = new DataSet();
                DBUtility.SqlHelper sql = new DBUtility.SqlHelper();
                ds = sql.ExecuteQuery(System.Configuration.ConfigurationManager.ConnectionStrings["DB"].ConnectionString, CommandType.Text, sb.ToString(), null);
                GridView1.DataSource = ds;
                GridView1.DataKeyNames = new String[] { "UserName" };
                GridView1.DataBind();
            }

            foreach (TreeNode n in this.TreeView1.Nodes)
            {
                if (n.ChildNodes.Count > 0)
                    GetSelectedValue(n.ChildNodes);
                if (n.Checked)
                {
                    //depId.Add(Convert.ToInt32(n.Value));
                    //Response.Write(n.Value);
                    //TextBox1.Text = n.Text;
                    //s.Append(n.Text);
                    //Response.Write("<br/>");
                }
            }
            //TextBox1.Text = s.ToString();
        }
        void GetSelectedValue(TreeNodeCollection tc)
        {
            //StringBuilder s = new StringBuilder();
            foreach (TreeNode n in tc)
            {
                if (n.ChildNodes.Count > 0)
                    GetSelectedValue(n.ChildNodes);
                if (n.Checked)
                {
                    //depId.Add(Convert.ToInt32(n.Value));
                    //Response.Write(n.Value);
                    //TextBox1.Text = n.Text;
                    //Response.Write("<br/>");
                    //s.Append(n.Text);
                }
            }
            //TextBox1.Text = s.ToString();
        }
      
        /// <summary>
        /// 当父节点选择时,子节点全选
        /// </summary>
        /// <param name="parentNode">父节点</param>
        private void SetChildChecked(TreeNode parentNode)
        {
            foreach (TreeNode node in parentNode.ChildNodes)
            {
                node.Checked = parentNode.Checked;

                if (node.ChildNodes.Count > 0)
                {
                    SetChildChecked(node);
                }
            }
        }
        /// <summary>
        /// gridview中父checkbox选择时,子checkbox全选
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void SelectAll(object sender, EventArgs e)
        {
            bool isChecked = ((CheckBox)(GridView1.HeaderRow.Cells[0].FindControl("cbHead"))).Checked;
            foreach (GridViewRow gvRow in GridView1.Rows)
            {
                ((CheckBox)(gvRow.Cells[0].FindControl("cbItem"))).Checked = isChecked;
            }
        }
            protected void btnOk_Click(object sender, EventArgs e)
        {
            string getName = "";
           
            foreach (GridViewRow row in this.GridView1.Rows)
            {
              
                CheckBox chk = row.FindControl("cbItem") as CheckBox;
                if (chk.Checked)
                {
                    //int bookId = Convert.ToInt32((row.FindControl("UserName") as Label).Text);
                    //int BoxID = Convert.ToInt32( .DataKeys[gdvWishList.Rows[i].DataItemIndex].Value);
                    string name = GridView1.DataKeys[row.RowIndex].Value.ToString();
                    getName += name + ",";
                }
            }
            TextBox1.Text = getName;
            //btnOk.Visible = false;
            //GridView1.Visible = false;
            //GridView1.DataSource = "";
            //GridView1.DataBind();
            //DBUtility.SqlHelper sql = new DBUtility.SqlHelper();
            //string insertText = "insert into Files(READNAME)values " + getName.ToString();
            //sql.ExecuteNonQuery(System.Configuration.ConfigurationManager.ConnectionStrings["DB"].ConnectionString, CommandType.Text, insertText.ToString(), null);
        }

        protected void CheckBoxList1_SelectedIndexChanged(object sender, EventArgs e)
        {
            this.btnOk.Visible = true;
            this.GridView1.DataSource = "";
            this.GridView1.DataBind();
            List<Int32> roleId = new List<int>();
            for (int i = 0; i < this.CheckBoxList1.Items.Count; i++)
            {
                if (this.CheckBoxList1.Items[i].Selected == true)
                {
                    roleId.Add(Convert.ToInt32(this.CheckBoxList1.Items[i].Value));
                }
            }
            if (roleId.Count!=0)
            {
                StringBuilder sb = new StringBuilder();//拼接查询字符串
                sb.Append("select UserName  from Users where PrivId in");
                sb.Append("(");
                foreach (int a in roleId)
                {
                    sb.Append(a);
                    sb.Append(",");
                }
                sb.Remove(sb.Length - 1, 1);
                sb.Append(")");

                DataSet ds = new DataSet();
                DBUtility.SqlHelper sql = new DBUtility.SqlHelper();
                ds = sql.ExecuteQuery(System.Configuration.ConfigurationManager.ConnectionStrings["DB"].ConnectionString, CommandType.Text, sb.ToString(), null);
                GridView1.DataSource = ds;
                GridView1.DataKeyNames = new String[] { "UserName" };
                GridView1.DataBind();
            }
        }
    }

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  • 原文地址:https://www.cnblogs.com/suixufeng/p/3336162.html
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