.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

How can i update treeview root node every time based on the record entries

Posted By:      Posted Date: August 30, 2010    Points: 0   Category :Windows Application
Hi all, I will have an mdi form and with a treeview which has it's initial property as visible =false. If i select an option from menu a child form will exists i will fill some details and click on save when ever click on save i will make the root node of the treeview to some name as File[batch count:0]. Now if i select another option from menu another form will appear and if i fill it with some details and click on save i would like to change the root node name to File[batch count:1] and a child node should exists with some name

View Complete Post

More Related Resource Links

Display error if a treeview root node contains a child node

I am having a treeview initially with a root node when form is loaded. I will add child node as some.txt file at the runtime by selecting an option as Addnew from contextmenu which was displayed when the user right clicks on the root node. Now what i need is if the tree has child node appended to the Root and if user tries to create a new node by clicking the option addnew from context menu i would like to display an error as only one child allowed.   Can any one help

treeview node selection takes a lot of time


Hi All,

I have a tree-view which doesn't have any events and AutoPostBack property is also false. But whenever the treeview node is selected,its taking a lot of time...The tree view is placed inside update panel...I have an update progress and selection of any node shows the progress for atleast 5-6 seconds.Please suggest what can be done....

The code is as below :

<asp:UpdatePanel ID="updatePnlListBoxes" runat="server">
<table align="center">
<asp:UpdateProgress ID="UpdateProgress2" runat="server" AssociatedUpdatePanelID="updatePnlListBoxes">
 <img id="Img2" src="~/images/ajax-loader.gif" alt="" runat="server" />
 <asp:TreeView ID="tvNodes" runat="server" NodeIndent="15" ShowExpandCollapse="true"
ShowLines="True" Width="181px">
<ParentNodeStyle Font-Bold="False" />
<HoverNodeStyle Font-Underline="True&

expand one node at a time in treeview


To anyone who know how to accomplish this: 

I have a tree view like this:








what I want to accomplish is when user click a parent node (for example node 1) every other parent nodes are collapse except the selected node( node 1), in other word, only one subtree is expanded at a time.

Thank you very much!


Can this code be setup to run against the whole database instead of just 1 record at a time?


We have made some changes to this code to start capturing 1 new field of data and updating it as new records are added. But there is currently about 120,000 records more or less.. those records of course dont have the new field populated with anything..

We would like to run this logic that already in place and run it against the tables to update the fields 1 time. I think to make it easier, if it can be setup to expect the "valueTwo" variable, so that we can run it againt the individual codes instead of doing all the records at one time.. there are codes that only have a few records, so it would be best to test initially against the small code group.


            strSqual = "insert into trans (trans_type_name, trans_date,sys_id,mod_user_id,show_ind, remoteCode, techName) values('" & valueTwo & "','" & TransDate & "',"&strSystemID&", 1,'T', '" & dbQuote(strUser) & "', '" & strTechName & "')"        
            'get the new transaction_id out for just inserted alarm   
            strSqual = "select max(transaction_id) as transaction_id from trans"  
            set rst = getStaticRecordSet(strSqual)

Treeview problems in Update panel



I tried using this code, on a Treeview inside an update panel, which is populated dynamically in code behind. 

However, it doesnt give me the required functionality.

Following is my aspx code for the TreeView and the TreeView populating logic:


<div id="treelist">
<asp:UpdatePanel ID="UpdatePanel1&quo

(Imperfect) Solution to TreeView Postback / Client-Side Node Selection Issue


I've seen this question posted on all corners of the web... "How do I disable "AutoPostBack" on the ASP.NET 2.0 TreeView control?!"  Unfortunately, most of the answers either don't work, miss the point (don't work right), or boil down to "You can't do it."  I happen to know that this behavior worked perfectly in the IEWebControls TreeView that Microsoft released as an add-on prior to ASP.NET 2.0, however.  So I set out to find a solution for the ASP.NET 2.0 TreeView issue.

In a nutshell, the behavior that I and others are looking for is to have a TreeView rendered in a page that allows the user to expand, contract, and select nodes within the TreeView without causing a PostBack to the server.  This implies two things: (1) the most recently-selected node should be recorded as the currently-selected node [i.e., at PostBack time, the most-recently selected node is actually represented as the SelectedNode]; and (2) the selected node should exhibit the SelectedNodeStyle as specified in the TreeView declaration.

It appears that the TreeView engineers saw only two possible outcomes from selecting a leaf node in a tree: (1) immediately posting back to the server, or (2) immediately navigating to another web page.  They apparently did not consider option (3) just allowing selection in-place on the client, while waiting for a click on so

record time


I want to record the time it takes between button presses in asp.net.
I need the answer in total secs and how do i do this?
I know Now() gets current time. 

Convert Update Date/Time to VB.NET



I was wondering if someone could convert this into VB.NET for me.  I'm not a PHP pro and not entirely sure what's happening here nor do I know how to get this to display the same way.

The new field is within a DetailsView, so you can give me example code as well, I'll greatly appreciate it.

Thanks.. -Jeff

PHP Code:

function updFormat($tStamp) {
	$tsTime = (strftime('%I', $tStamp) + 0) . strftime(':%M %p', $tStamp);
	// 86400 == # of seconds in a day
	$tsDays = floor($tStamp / 86400);
	$nowDays = floor(time() / 86400);
	if ($tsDays == $nowDays) $updTime = "Today at $tsTime";
	elseif ($tsDays == $nowDays - 1) $updTime = "Yesterday at $tsTime";
	else $updTime = strftime('%b ', $tStamp) . (strftime('%d', $tStamp) + 0) . strftime(', %Y' , $tStamp);

	return $updTime;
<asp:DetailsView ID="dtv_LastUpdated" runat="server" Width="100%" 
    AutoGenerateRows="False" DataSourceID="ods_MVPParcelUpdate" 
    CellPadding="1" CellSpacing="1" GridLines="None">
        <asp:BoundField DataField="Update_time" HeaderText="Parcel Data:" 

ListItem Dynamic DropDownList based on custom list entries.

I utilized the following solution to get the drop down list on the page and populate it dynamically, but it doesn't save the selected value back to the SPListItem object. Does anyone have a better solution possibly for this? http://geekswithblogs.net/SoYouKnow/archive/2010/01/21/sharepoint-populating-drop-down-list-field-with-data-from-different.aspx

On escape key while editing a treeview node

On hitting escape key while editing a treeview i would like to cancel the editing a would like to show the default name that was previously there. Where should i handle this can any one tell me please..    

Last node in TreeView

Hi everybody.... How are you.... i think everything is all right...... now i have a question.... how to get the last node in treeview ??????? Thankssss.....

Treeview - how to change node icon depending on node contents

I have a treeview in an MVVM application: <TreeView ItemsSource="{Binding RootNodes}"> <TreeView.ItemContainerStyle> <Style TargetType="{x:Type TreeViewItem}"> <Setter Property="IsExpanded" Value="{Binding IsExpanded, Mode=TwoWay}" /> <Setter Property="IsSelected" Value="{Binding IsSelected, Mode=TwoWay}" /> <Setter Property="FontWeight" Value="Normal" /> <Style.Triggers> <Trigger Property="IsSelected" Value="True"> <Setter Property="FontWeight" Value="Bold" /> </Trigger> </Style.Triggers> </Style> </TreeView.ItemContainerStyle> <TreeView.ItemTemplate> <HierarchicalDataTemplate ItemsSource="{Binding Children}"> <TextBlock Text="{Binding NodeName}" /> </HierarchicalDataTemplate> </TreeView.ItemTemplate> </TreeView> The treeview is bound to an ObservableCollection called RootNodes. Elements in the RootNodes collection expose a member "NodeName" which is the text for the nodes in the treeview at runtime. They also expose a member called "NodeType", effectively an enumeration that indicates what type of icon should be displa

update/insert parent child at the same time

Hi Al, Is there a way to create a contact form that takes the name. address and other info for the master record; Then, somehow, on the same page, allow the user to enter multiple contact info as chid records (i.e. phone, email, etc.) All this using the Objec DataSource or SQL DataSource (which ever is easy) and doesn't require writing too much code. Any reference material welcomed. Thanks, rod.

Last node in TreeView

Hi everybody.... How are you.... i think everything is all right...... now i have a question.... how to get the last node in treeview ??????? Thankssss.....

how to hide root site node in top/global navigation in sharepoint 2010

how to hide root site node in top/global navigation in sharepoint 2010? I tried to use below provider but it sharepoint asp menu still shows root site as first item. We would like to show only subsites on top nav bar which is Out of box. <asp:SiteMapDataSource      ShowStartingNode="False"      SiteMapProvider="SPNavigationProvider"      id="topSiteMap"      runat="server"      StartingNodeUrl="sid:1002"/>

Update Database Record using GridView and Stored Procedure

Hi, I am trying to update record via stored procedure, but i got error at very start point. Problem is when i click on Edit link button within the Gridview it produce error. I can populate values from database fine but its produce error when i click on edit link button. Please see the code below. *********** ASP.net GridView Code I am using *****************<asp:GridView ID="GridView1" runat="server" DataKeyNames="RollID, EmpID" AutoGenerateColumns="False" Width="700px"> <Columns> <asp:TemplateField HeaderText="ApplicationID" Visible="false"> <ItemTemplate> <asp:Label ID="AppsID" runat="server" Visible="false"><%# Eval("RollID") %>'</asp:Label> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="ReleaseID" Visible="false"> <ItemTemplate> <asp:Label ID="rlsID" runat="server" Visible="false"><%# Eval("EmpID") %></asp:Label> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Roll Name"> <ItemTemplate> <asp:Label ID="rlsVersion" runat="server"><%# Eval("Roll_Name")%></asp:Label> </ItemTemplate> <EditI

drag and drop treeview node to textarea in web forms

Hi We have an asp.net treeview control and a texarea. The childnodes of treeview need to be draggable and can be dropped into txtarea.   Please let us know how it will be achieved through JQuery?
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend