当前文件： TreeGrid/Default.aspx.cs[4K，2009-6-12 11:57:41]，打开代码结构图

		            
  1using System;
  2using System.Collections;
  3using System.Configuration;
  4using System.Data;
  5using System.Linq;
  6using System.Web;
  7using System.Web.Security;
  8using System.Web.UI;
  9using System.Web.UI.HtmlControls;
 10using System.Web.UI.WebControls;
 11using System.Web.UI.WebControls.WebParts;
 12using System.Xml.Linq;
 13using TB.Web.UI.WebControls;
 14
 15namespace TB.Web.UI.TreeGridDemo
 16...{
 17    public partial class Default : System.Web.UI.Page
 18    ...{
 19        protected void Page_Load(object sender, EventArgs e)
 20        ...{
 21            if (!Page.IsPostBack)
 22            ...{
 23                Builder.InitTreeGridManual(this.TreeGrid);
 24            }
 25
 26        }
 27
 28        protected void TreeGrid_SelectedNodeChanged(object sender, TB.Web.UI.WebControls.TreeGridNodeEventArgs e)
 29        ...{
 30
 31        }
 32        protected void TreeGrid_RowCommand(object sender, TB.Web.UI.WebControls.TreeGridRowCommandEventArgs e)
 33        ...{
 34            this.LblHint.Text = "我被点击了[Event Name:" +  e.CommandName+ "] " + DateTime.Now.ToString();
 35
 36            if (e.CommandName == "Edit")
 37            ...{
 38                TreeGridNode oNode = this.TreeGrid.EditingNode;     // previous EditingNode
 39                e.Row.Owner.Edit();                                 // set current EditingNode
 40
 41                if (oNode != null)                                  // cancel previous EditingNode
 42                ...{
 43                    oNode.DataItem = Builder.GetNodeData(oNode.Value);
 44                    oNode.RaiseNodeDataBind(false);
 45                }
 46
 47                e.Row.Owner.DataItem = Builder.GetNodeData(e.Row.Owner.Value);  // bind data
 48                e.Row.Owner.RaiseNodeDataBind(false);
 49            }
 50
 51            if (e.CommandName == "Update")
 52            ...{
 53                e.Row.Owner.Editing = false;
 54
 55                string newValue = ((TextBox)e.Row.FindControl("TxtSixth")).Text;
 56                // save .....
 57                e.Row.Owner.DataItem = Builder.GetNodeData(e.Row.Owner.Value);
 58                ((Foo)e.Row.Owner.DataItem).C6 = newValue;      // for demo
 59                e.Row.Owner.RaiseNodeDataBind(false);
 60
 61                
 62            }
 63
 64            if (e.CommandName == "Cancel")
 65            ...{
 66                e.Row.Owner.Editing = false;
 67
 68                e.Row.Owner.DataItem = Builder.GetNodeData(e.Row.Owner.Value);
 69                e.Row.Owner.RaiseNodeDataBind(false);
 70            }
 71
 72            if (e.CommandName == "Remove")
 73            ...{
 74                if (e.Row.Owner.Parent != null)
 75                ...{
 76                    e.Row.Owner.Parent.ChildNodes.Remove(e.Row.Owner);
 77                }
 78                else
 79                ...{
 80                    this.TreeGrid.Nodes.Remove(e.Row.Owner);
 81                }
 82            }
 83        }
 84        protected void TreeGrid_NodePopulate(object sender, TB.Web.UI.WebControls.TreeGridNodeEventArgs e)
 85        ...{
 86            TreeGridNode node = new TreeGridNode("new1");
 87            node.DataItem = Builder.GetNodeData("-1");
 88            e.Node.ChildNodes.Add(node);
 89            node.PopulateOnDemand = true;
 90            node.RaiseNodeDataBind(false);
 91
 92            node = new TreeGridNode("new2");
 93            node.DataItem = Builder.GetNodeData("-1");
 94            e.Node.ChildNodes.Add(node);
 95            node.PopulateOnDemand = true;
 96            node.RaiseNodeDataBind(false);
 97        }
 98
 99        protected void TreeGrid_NodeDataBound(object sender, TreeGridRowEventArgs e)
100        ...{
101            if (e.Row.RowType == DataControlRowType.DataRow)
102            ...{
103                if (e.Row.RowState == DataControlRowState.Edit)
104                ...{
105                    ((LinkButton)e.Row.FindControl("LbtnUpdate")).Visible = true;
106                    ((LinkButton)e.Row.FindControl("LbtnCancle")).Visible = true;
107                }
108
109                if (e.Row.RowState == DataControlRowState.Normal)
110                ...{
111                    ((LinkButton)e.Row.FindControl("LbtnUpdate")).Visible = false;
112                    ((LinkButton)e.Row.FindControl("LbtnCancle")).Visible = false;
113                }
114            }
115        }
116    }
117}
118