treeview expand depth 2 collapse to depth level 0.

I have treeview on update panel and loading folders based on user interaction. It works for depth level 2 but at this point clicking the node shows depth level 0 results. is there something I am missing?

here are few lines of crap...

Thanks for you help.

<asp:TreeViewid="SourceTreeView"runat="server"Width="100%"OnSelectedNodeChanged="SourceTreeView_SelectedNodeChanged"OnTreeNodeExpanded="SourceTreeView_TreeNodeExpanded"ShowCheckBoxes="Leaf"ImageSet="Simple"Height="100%"ExpandDepth="1"MaxDataBindDepth="10"NodeIndent="15">

<ParentNodeStyleFont-Bold="False"></ParentNodeStyle>

<HoverNodeStyleForeColor="#5555DD"Font-Underline="True"></HoverNodeStyle>

<SelectedNodeStyleHorizontalPadding="0px"ForeColor="#5555DD"VerticalPadding="0px"Font-Underline="True"></SelectedNodeStyle>

<NodeStyleNodeSpacing="0px"HorizontalPadding="0px"ForeColor="Black"VerticalPadding="0px"Font-Size="10pt"Font-Names="Tahoma"></NodeStyle>

</asp:TreeView>

I am adding nodes per users request using following code, which is same for depth 0,1 and 2.

newNode.Expanded =false;

newNode.ShowCheckBox =false;

newNode.PopulateOnDemand =true;newNode.SelectAction =TreeNodeSelectAction.Select;

treeNode.ChildNodes.Add(newNode);

sg20000:

is there something I am missing

You are missing, that the treeview is not supported in the updatepanel

Check here:

UpdatePanel Control Overview

Maybe you are right and thanks for your help.

I found at some places forward slash was being used, i fixed that and while trying to make it work, made some other changes to node before adding to tree and seems like it is working. I think some nodes had / (creating some escape sequences) or something else to trigger wrapping of tree.

is that treeview on update panel will behave unpredictablly or there are some other issues?

sg20000:

is that treeview on update panel will behave unpredictablly or there are some other issues?

I'm also using treeview with updatepanel, regardless is it not supported.

Main issue which I found that the tree state (selected node, expanded/collapsed nodes state etc.) stays out sync when a postback occurs. Especially when you use any client side capability (populate on demand, enableclientscript=true).

For example:

- Treeview in up

- User coll/exp nodes (no postback yet)

- User select a node, partial postback, selectednodechanged handled for example.

- User select a different node, same as before, but coll/exp state messed up.

- etc.

Without client script features it's ok in up, but slow (big complicated markup, big viewstate etc.)

Triggering an Updatepanel (b) based on a gridview rowcommand which is inside a UpdatePanel

Hi there,

I have two sections on my aspx page which contain two grids on an aspx page. User and UserDetails.

User section has atab control which contains an update panelupUsers which contains the gridviewgvUsers. I have another grid in a different updatepanelupUserDetails this contains a grid toogvUserAccessKeys. I want to refresh the second updatepanelupUserDetails (basically trigger it) based on the RowCommand in the gvUsers which is in the first update panel. I was able to do this till I added the tab control.

Now it cannot find the gvUsers controlID when I write the trigger.

So is it possible to trigger a different UpdatePanel based on a gridview Control rowcommand event from inside a AjaxControlKit tab control.

Thanks in advance for any suggestions.

Rakesh Ajwani

following is the HTML snipped of the aspx page.

</td><tdstyle="width: 100px"valign="top"><cc1:TabContainerID="pTabs"runat="server"ActiveTabIndex="0"><cc1:TabPanelrunat="Server"ID="tabUsers"HeaderText="Users"Enabled="true"><ContentTemplate><asp:UpdatePanelID="upUsers"runat="server"><ContentTemplate><asp:GridViewID="gvUsers"runat="server"AutoGenerateColumns="False"Width="129px"OnRowDataBound="gvUsers_RowDataBound"OnRowCommand="gvUsers_RowCommand"><Columns><asp:TemplateFieldHeaderText="Users"><HeaderTemplate><tablewidth="100%"><tr><tdalign="left"><asp:Labelrunat="server"Text="Users"></asp:Label></td><tdalign="right"><asp:ImageButtonID="ibAddUser"OnClick="ibAddUser_Click"runat="server"ImageUrl="Images/plus-8.png"/></td></tr></table></HeaderTemplate><ItemTemplate><asp:LinkButtonrunat="server"ID="linkbUserSelect"Text='<%#((System.Data.DataRow)Container.DataItem)["LastName"] + " " + ((System.Data.DataRow)Container.DataItem)["FirstName"]%>'CommandName="ViewDetail"></asp:LinkButton></ItemTemplate></asp:TemplateField></Columns></asp:GridView></ContentTemplate><Triggers><asp:AsyncPostBackTriggerControlID="gvInstitutions"EventName="RowCommand"/></Triggers></asp:UpdatePanel></ContentTemplate></cc1:TabPanel></cc1:TabContainer></td></tr><tr><tdcolspan="2"width="100%"><asp:UpdatePanelID="upUserDetail"runat="server"><ContentTemplate><asp:LabelID="lblInstitution"runat="server"Width="132px"></asp:Label><br/><br/><asp:LabelID="lblLName"runat="server"Width="143px"></asp:Label><asp:TextBoxID="txtLName"runat="server"Width="143px"></asp:TextBox><asp:LabelID="lblFName"runat="server"Width="143px"></asp:Label><asp:TextBoxID="txtFName"runat="server"Width="143px"></asp:TextBox>

<br/><br/><asp:LabelID="lblEmailID"runat="server"Width="154px"></asp:Label><asp:TextBoxID="txtEmailID"runat="server"Width="143px"></asp:TextBox><br/><asp:GridViewID="gvAccessKeys"runat="server"AutoGenerateColumns="False"Width="689px"OnRowCreated="gvAccessKeys_RowCreated"OnRowDataBound="gvAccessKeys_RowDataBound"><Columns><asp:TemplateFieldHeaderText="Application"><ItemTemplate><asp:LabelID="lblApplication"runat="server"Visible="true"Text='<%#((System.Data.DataRow)Container.DataItem)["ApplicationCode"]%>'></asp:Label></ItemTemplate></asp:TemplateField><asp:TemplateFieldHeaderText="Institution"><ItemTemplate><asp:LabelID="lblCampus"runat="server"Visible="true"Text='<%#((System.Data.DataRow)Container.DataItem)["InstitutionName"]%>'></asp:Label></ItemTemplate></asp:TemplateField><asp:TemplateFieldHeaderText="Role"><ItemTemplate><asp:DropDownListID="ddRole"EnableViewState="true"runat="server"></asp:DropDownList></ItemTemplate></asp:TemplateField></columns><EmptyDataTemplate><tablewidth="100%"><tr><tdalign="left">Access Keys</td></tr><tr><tdcolspan="2"><asp:LabelID="lblNoUCARData"runat="server"Text="No Soup For You"Width="217px"></asp:Label></td></tr></table>

</EmptyDataTemplate></asp:GridView><asp:ButtonID="btnSave"runat="server"Text="Save & notify"OnClick="btnSave_Click"/></ContentTemplate><Triggers><asp:AsyncPostBackTriggerControlID="gvUsers"EventName="RowCommand"/></Triggers></asp:UpdatePanel></td></tr>

Hi,

I have a similar problem, except that I am loading UserControls with GridView dynamically into the TabPanels. The GridView have buttons that should fire RowCommand. The TabContainer is within an UpdatePanel. My RowCommand event is not firing, did you find any solutions to your problem?

Thanks.

Hook the gvUsers RowCreate Event, Find the Button using the FindControl. Once Found, create asyncpostbacktrigger programatically set the control id to the found button id and add the trigger in the second update panel trigger collection.

trouble finding a sample using usercontrols and updatepanels

Hi all,

We have created a menu system primairy based on inserting usercontrols inside one single designed page with several areas's. This works very nice for our sites. Of coarse postback occurs on every click or change.

Some functionality inside usercontrols do a lot of postback, so I would be nice to use the update panel for this type of change.

When trying to implement this I ran into all sorts of trouble, so my first step is to hit this forum. From what i find i'm not the only one having some trouble using usercontrols in combination with the update panel.

So question: Does anyone have a working sample which i could have a look at. Probably can't use it 1 on 1 but well it would a nice starting point.

thanks,

-- jan willem

ps. Does anyone notice .. that all the the ajax stuff (including of coarse atlas) looks REAL nice but when u start to implement it it does realy really takes a lot of time learning to program again :-) Well it's new (ehh well kinda), better and customers do love it.

I wrote a sample to have a test with Ajax and User Control.

http://www.box.net/public/static/q4ltbl5an9.zip

It's simple and straight forward:

1. One user control is linkbutton group, auto generated during runtime;

2. Another user control is to display information according to the user control above;

3. Event subscription is used for information delivery.

4. The link which clicked should be set into different style.

Hope it's helpful.

This was researched days before, now I'm running into the problem of Atlas in live.com. It seems doesn't work with EFP at all!

Thanks for the sample it is usefull!

The only trouble is that the atlas controls (scriptmanager, updatepanel) are still created in the page and not in the usercontrol.

I've created a very simplistic sample of what i'm looking for. Just a page and a usercontrol. I put them in the link below.

http://www.bataviagroep.nl/sampleAtlasUC.zip

- default.aspx --> no atlas, just page and usercontrol doing what it should do .. handling click
- atlas-page.aspx --> same as above, all in one page using atlas and working fine (i added the picture so it's very clear that only the notfication changes

- default-atlas.apsx (same as the first default.aspx) but with the atlas inserted in the usercontrol. This one throws the following exeption:

"The UpdatePanel 'UpdatePanel1' was not present when the page's InitComplete event was raised. This is usually caused when an UpdatePanel is placed inside a template."

For those who don't like downloading stuff from a different server:

default.aspx
<body>
<formid="form1"runat="server">
<div>
<asp:PanelID="panel1"runat="server"/>
</div>
</form>
</body
code behind:
ProtectedSub Page_Load(ByVal senderAsObject,ByVal eAs System.EventArgs)HandlesMe.Load

panel1.Controls.Add(Page.LoadControl("~/uc-atlas.ascx"))

EndSub

The usercontrol uc.ascx
<asp:LinkButtonID="LinkButton1"runat="server">click A</asp:LinkButton>
<asp:LinkButtonID="LinkButton2"runat="server">click B</asp:LinkButton>
<br/><br/>
<asp:LabelID="Label1"runat="server"Text="Label">not clicked</asp:Label
code behind:

ProtectedSub LinkButton1_Click(ByVal senderAs System.Object,ByVal eAs System.EventArgs)Handles LinkButton1.Click

Label1.Text ="clicked A"

EndSubProtectedSub LinkButton2_Click(ByVal senderAs System.Object,ByVal eAs System.EventArgs)Handles LinkButton2.Click

Label1.Text =

"clicked B"EndSub

The same user control but then with atlas stuff added:

<atlas:ScriptManagerID="ScriptManager1"runat="server"EnablePartialRendering="true">

</atlas:ScriptManager>

<asp:LinkButtonID="LinkButton1"runat="server">click A</asp:LinkButton>

|

<

asp:LinkButtonID="LinkButton2"runat="server">click B</asp:LinkButton>

<

br/>

<

br/>

<

atlas:UpdatePanelID="UpdatePanel1"runat="server"><ContentTemplate><asp:LabelID="Label1"runat="server"Text="Label">not clicked</asp:Label></ContentTemplate><Triggers><atlas:ControlEventTriggerControlID="LinkButton1"EventName="Click"/><atlas:ControlEventTriggerControlID="LinkButton2"EventName="Click"/></Triggers>

</

atlas:UpdatePanel>

code behind is the same as above.

--> the above doesn't work and throws an expection.

I would love a sample or idea how to fix this

thanks,

-- jan willem

ps. all the code is in the zipfile

load the custom user control in the Page_Init event, it will work then

wow that worked ...

great that was th easy asnwer i kept missing thanks!

--jw

You might try putting a Placeholder control inside the content template of the UpdatePanel, use FindControl() on the UpdatePanel to locate the Placeholder, and use Placeholder.Controls.Add() to add your dynamically created user control from LoadControl().

The key here is that the container for the user control must exist before OnInit(), and the only way to accomplish this is the declaratively put something there first.

I have gotten this scenario to work. Adding anything directly to the UpdatePanel after OnInitComplete() will not work.