Web Site

<ct:ASTreeView ID="astvMyTree" 
    runat="server"
    BasePath="~/Javascript/astreeview/"
    DataTableRootNodeValue="0"
    EnableRoot="false" 
    EnableNodeSelection="true" 
    EnableCheckbox="false" 
    EnableDragDrop="true" 
    EnableTreeLines="true"
    EnableNodeIcon="true"
    EnableCustomizedNodeIcon="false"
    AutoPostBack="false"
    EnableDebugMode="false"
    EnableContextMenu="true"
    EnableAjaxOnEditDelete="true"
    EditNodeProvider="~/ASTreeViewDemo/ASTreeViewEditNodeHandler.aspx"
    DeleteNodeProvider="~/ASTreeViewDemo/ASTreeViewDeleteNodeProviderLimit.aspx"
    AddNodeProvider="~/ASTreeViewDemo/ASTreeViewDemo17.aspx"
    AdditionalAddRequestParameters="{'t':'ajaxAdd'}"
    AddNodePromptDefaultValue="New Node" 
    AddNodePromptMessage="Hello, please add a new node:"
    AddNodeDataValueProvider="return prompt('new node? under:' + elem.getAttribute('treeNodeValue') + ' Text with letter a will be rejected.','');"
    OnNodeAddedScript="addedHandler(elem)"
    EnableOnNodeAddedScriptReturn="true"    
    OnNodeEditedScript="editedHandler(elem, info)"
    EnableOnNodeEditedScriptReturn="true"
    OnNodeDeletedScript="deletedHandler(val, info)"
    EnableOnNodeDeletedScriptReturn="true"
    OnNodeDragAndDropCompleteScript="dndCompleteHandler( elem, newParent )"
    OnNodeDragAndDropStartScript="dndStartHandler( elem )"
    EnableOnNodeDragAndDropStartScriptReturn="true"
    EnableOnNodeDragAndDropCompleteScriptReturn="true" />

//parameter must be "elem"
function addedHandler( elem ){
    var message = '';
    var result = true;
    
    var aTag = elem.getElementsByTagName('A')[0];
    
    if( aTag.getAttribute('addfailed') == 'true' ){
        alert( aTag.innerHTML );
        return false;
    }
    else{
        message = ( ">>add completed. [Node]" + elem.getAttribute("treeNodeValue") + "<br />" );
    }
    
    
    document.getElementById( "<%=divConsole.ClientID %>" ).innerHTML += message;
    return result;
    
}

//parameter must be "elem" and "info"
function editedHandler( elem, info ){
    //console.debug(info)
    var ts = info.split('|');
    if( ts[0] == '1' ){
        alert(ts[1]);
        return false;
    }
    
    document.getElementById( "<%=divConsole.ClientID %>" ).innerHTML 
    += ( ">>edit completed. [Node]" + elem.getAttribute("treeNodeValue") 
    + "<br />" );
}

//parameter must be "val" and "info"
function deletedHandler( val, info ){
    //console.debug(info)
    var ts = info.split('|');
    if( ts[0] == '1' ){
        alert(ts[1]);
        return false;
    }
    
    document.getElementById( "<%=divConsole.ClientID %>" ).innerHTML 
    += ( ">>delete completed. [Node]" + val
    + "<br />" );
}

//parameter must be "elem"
function dndStartHandler( elem ){
    var nText = elem.getElementsByTagName("A")[0].innerHTML;
    
    if( nText.indexOf('a') < 0 && nText.indexOf('A') < 0){//elem.getAttribute("treeNodeValue") != 'Tesorus' ){
        document.getElementById( "<%=divConsole.ClientID %>" ).innerHTML 
        += ( ">>drag started. [Node]" + elem.getAttribute("treeNodeValue") 
        + " [Parent]:" + elem.parentNode.parentNode.getAttribute("treeNodeValue") 
        + "<br />" );
        
        return true;
    }
    else{ 
        var script = 'alert("You cannot drag and drop a node with \'a\' in node text.")';
        window.setTimeout( script, 50 );
        return false;
    }
}

//parameter must be "elem"
function dndCompleteHandler( elem, newParent ){
    var nText = newParent.getElementsByTagName("A")[0].innerHTML;
    
    if( nText.indexOf('a') < 0 && nText.indexOf('A') < 0){
        document.getElementById( "<%=divConsole.ClientID %>" ).innerHTML 
        += ( ">>drag completed. [Node]" + elem.getAttribute("treeNodeValue") 
        + " [Parent]:" + elem.parentNode.parentNode.getAttribute("treeNodeValue") 
        + "<br />" );
        
        return true;
    }
    else{
        alert( "You cannot drop the node under a node with 'a' in node text." );
        return false;
    }
}