TreeViewの使い方(コードあり)(asp.net)

フロントコード

 
  
 
  <br>//        
  <br>function CheckEvent() { 
  <br>var objNode = event.srcElement; 
  <br>if (objNode.tagName == "INPUT" && objNode.type == "checkbox") { 
  <br>var objParentDiv = objNode.id.replace("CheckBox", "Nodes"); 
  <br>if (objNode.checked == true) { 
  <br>setChildCheckState(objParentDiv, true); 
  <br>setParentCheckeState(objNode, true); 
  <br>} 
  <br>else { 
  <br>setChildCheckState(objParentDiv, false); 
  <br>if (!HasOtherChecked(objNode)) { 
  <br>setParentCheckeState(objNode, false); 
  <br>} 
  <br>} 
  <br>} 
  <br>} 
  <br>//                
  <br>function HasOtherChecked(objNode) { 
  <br>var objParentDiv = WebForm_GetParentByTagName(objNode, "div"); 
  <br>var chks = objParentDiv.getElementsByTagName("INPUT"); 
  <br>for (var i = 0; i < chks.length; i++) { 
  <br>if (chks[i].checked && chks[i].id != objNode.id) { 
  <br>return true; 
  <br>} 
  <br>} 
  <br>return false; 
  <br>} 
  <br>//      
  <br>function setParentCheckeState(objNode, chkstate) { 
  <br>try { 
  <br>var objParentDiv = WebForm_GetParentByTagName(objNode, "div"); 
  <br>if (objParentDiv == null || objParentDiv == "undefined ") { 
  <br>return; 
  <br>} 
  <br>else { 
  <br>var objParentChkId = objParentDiv.id.replace("Nodes", "CheckBox"); 
  <br>var objParentCheckBox = document.getElementById(objParentChkId); 
  <br>if (objParentCheckBox) { 
  <br>objParentCheckBox.checked = chkstate; 
  <br>setParentCheckeState(objParentDiv, chkstate); 
  <br>} 
  <br>} 
  <br>} 
  <br>catch (e) { } 
  <br>} 
  <br>//      
  <br>function setChildCheckState(nodeid, chkstate) { 
  <br>var node = document.getElementById(nodeid); 
  <br>if (node) { 
  <br>var chks = node.getElementsByTagName("INPUT"); 
  <br>for (var i = 0; i < chks.length; i++) { 
  <br>chks[i].checked = chkstate; 
  <br>} 
  <br>} 
  <br>} 
  <br> 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
 

バックグラウンドコード:

 
  
private void BindGrid() 
  
{ 
  
DataTable mytable = menuTableBll.GetAllList().Tables[0]; //     
  
CreateTree(mytable, TreeView1.Nodes, "0"); 
  
} 
  
private void CreateTree(DataTable dtNodeSets, TreeNodeCollection node, string parent_id) 
  
{ 
  
DataView dvList = new DataView(dtNodeSets); 
  
dvList.RowFilter = "MeunParentId =" + parent_id; 
  
TreeNode nodeTemp; 
  
foreach (DataRowView dv in dvList) 
  
{ 
  
nodeTemp = new TreeNode(); 
  
nodeTemp.Text = dv["MenuName"].ToString(); 
  
nodeTemp.Expanded = true; 
  
nodeTemp.ToolTip = dv["MeunId"].ToString(); 
  
node.Add(nodeTemp); 
  
CreateTree(dtNodeSets, nodeTemp.ChildNodes, dv["MeunId"].ToString()); 
  
} 
  
}