Questions on UI for ASP.NET AJAX Forum

1 answer

37 views

Getting 'htmlfile:Unexpected call to method or property access' error

I am getting the 'htmlfile:Unexpected call to method or property access' error while I select a Treeview node and click on a button on the second attempt. i.e first I select a node and click on the button which opens a Radwindow pop up and then when I close the Radwindow , I make a Ajax request on the parent page to refrsh the Treeview control. Once that is done , when I select some other node and click on the button (to update the information opening a Radwindow) , I get the above error mentioned. I read in several of your threads that It is related to IE 8 and the latest version of RadControls for ASP.NET AJAX resolves this issue. But I have the latest 2011 1Q SP2 version, but still it's not resolved.

Thanks
Madhu

TreeView

answered on 26 May 2011

3 answers

129 views

Multiple Y axis, shared X axis

Hi,

I have a need to plot movement against time from a number of different sensors (5-7)

I am holding the sensor type and time of activation in a SQL database.

Is it possible to have a multiple charts that share a common x axis(time in minutes) so that I can have one chart per sensor? Where the y axis shows a single sensor activation. Basically a series of bar charts.

Ideally I would like to be able to zoom on one chart and have all charts zoom to the same level and also be able to use the graph in a report.

Does any one have any idea if this is even remotely possible?

All and any help greatly appreciated.

Thanks

Chris

Chart (Obsolete)

answered on 26 May 2011

5 answers

150 views

LoadOnDemand RadComboBox inside an Ajaxified RadGrid

Hi

We've written a user control that has a RadComboBox using LoadOnDemand. It works fine when placed directly on the page, however, we run into problems with it inside a RadGrid that uses Ajax.

Although it renders ok, the problem is it does not populate the RadComboBox with data. Currently it displays 'Loading' and then fails.

I suspect the ajax in the RadGrid isn't playing nicely with the ajax in the RadComboBox. The RadGrid's ajax is managed by a RadAjaxManager. My thought was to include the RadComboBox as an AjaxUpdatedControl in the RadAjaxManager but I'm not sure how to do that. Firstly the RadComboBox is inside a user control, secondly it is created dynamically by the RadGrid, of which multiple may be opened at the same time (seeing as a RadComboBox is on each RadGrid row).

I'm using RadControls_for_ASP.NET_AJAX_2010_1_415_dev_hotfix.zip.

An additional issue is that we want the RadComboBox to preload the first X items (i.e. fire OnItemsRequested) on page load or preferably when the RadComboBox is initialised. The problem this causes is that it complicates when we can set the SelectedValue. It would also irritate the user if they have to wait for this when he/she opens the ComboBox list. Our work around is using OnClientLoad = "RadComboBoxLoad", and in the javascript we call: combo.requestItems('', false);. Is there a better way to do this?

Thanks

ComboBox

answered on 26 May 2011

7 answers

143 views

Radgrid state management

Hi,

Can you point me in the right direction on how to save state for rad grid. I have a grid in edit mode and when i create a new row because of the post back the values in edit mode are lost when row is created. I attached a screen of the grid in edit mode to give you an idea.

Thanks,
Ron.

Grid

answered on 26 May 2011

3 answers

218 views

RadComboBoxItemData on Client Side

Hi,
I am using a List of "RadComboBoxItemData" objects to load data into RadComboBox using the LoadOnDemand functionality. My Question is,
I have set few attributes on the server side and I want to access them on the client side. let me know how to do that.

For example:
ServerSide(Web Service):

List<RadComboBoxItemData> result = new List<RadComboBoxItemData>(context.NumberOfItems);

foreach(row in rows)

{

RadComboBoxItemData itemData = new RadComboBoxItemData();

itemData.Attributes.Add("HostName", row["HostName"].ToString());

itemData.Value = row["ID"].ToString();

result.Add(itemData);

}

return result;

ClientSide:

function onItemDataBound(sender, eventArgs) {//the combo item

var item = eventArgs.get_item();

var dataItem = eventArgs.get_dataItem();

............AND THEN................??

Any Help will be appreciated. Secondly, I want to implement CheckBoxes so that I can add Multi-Select Functionality to it. Please suggest me a work around on this one.

Thanks in Advance. Appreciate your help.

ComboBox

answered on 26 May 2011

1 answer

248 views

Label position

Is there any way to control where the label is placed relative to the combo box? It seems to always appear to the immediate left and I would like for it to be above it.

ComboBox

answered on 26 May 2011

1 answer

175 views

Help Radscheduler: holiday configuration

Hi,

I am currently creating timetable using Radscheduler.
I have the data where start date is "2011-01-24" and end date "2011-12-16". The timetable working as expected however, since within start date and end date the following dates that the data is not to be display.

  ("2011-04-04"),("2011-04-05"),
   ("2011-04-06"),("2011-04-07"),
   ("2011-04-08")

   ("2011-06-26"),("2011-06-27"),
   ("2011-06-28"),("2011-06-29"),
   ("2011-06-30"),("2011-07-01"),
   ("2011-07-04"),("2011-07-05"),
   ("2011-07-06"),("2011-07-07"),
   ("2011-07-08"),("2011-07-11"),
   ("2011-07-12"),("2011-07-13"),
   ("2011-07-14"),("2011-07-15"),
   ("2011-07-18"),("2011-07-19"),
   ("2011-07-20"),("2011-07-21"),
   ("2011-07-22"),("2011-07-25"),
   ("2011-07-26"),("2011-07-27")

How i can handle it using radscheduler. Please advise

Scheduler

answered on 26 May 2011

1 answer

63 views

Windows Application Vs DLL

Can I use the Telerik.Web.UI.dll, to have it parse the RECURRENCE_RULES to find the occurrences ? Any constraints involved there?

Sanjeev

Scheduler

answered on 26 May 2011

1 answer

129 views

Combobox with Treeview

I'me tring to use the Combobox with Treeview functionality.

The first time I choose an item from the tree everything goes smoothly. But if I open again the combox to select the tree I get an javascript error: Message: 'null' is null or not an object. Thus the issue happens only if I choose a node and after I try to open again the combobox

I've checked the javascript and the error is in the follwoing code:
function OnClientDropDownOpenedHandler(sender, eventArgs) {
            var tree = sender.get_items().getItem(0).findControl("rvt1");
            var selectedNode = tree.get_selectedNode();
            if (selectedNode) {
                selectedNode.scrollIntoView();
            }
        }
The findControl returns a null and when we call the get_selectedNode() we got the exception.
What may be causing this behaviour?

Here is our code:

<script type="text/javascript">

function nodeClicking(sender, args) {

var comboBox = $find("<%= combo1.ClientID %>");

var node = args.get_node()

comboBox.set_text(node.get_text());

comboBox.trackChanges();

comboBox.get_items().getItem(0).set_text(node.get_text());

comboBox.get_items().getItem(0).set_value(node.get_value());

comboBox.commitChanges();

comboBox.hideDropDown();

// Call comboBox.attachDropDown if:

// 1) The RadComboBox is inside an AJAX panel.

// 2) The RadTreeView has a server-side event handler for the NodeClick event, i.e. it initiates a postback when clicking on a Node.

// Otherwise the AJAX postback becomes a normal postback regardless of the outer AJAX panel.

//comboBox.attachDropDown();

}

function StopPropagation(e) {

if (!e) {

e = window.event;

}

e.cancelBubble = true;

}

function OnClientDropDownOpenedHandler(sender, eventArgs) {

var tree = sender.get_items().getItem(0).findControl("rvt1");

var selectedNode = tree.get_selectedNode();

if (selectedNode) {

selectedNode.scrollIntoView();

}

</script>

<telerik:RadComboBox ID="combo1" runat="server" CausesValidation="false"

EnableEmbeddedSkins="false" OnClientDropDownOpened="OnClientDropDownOpenedHandler"

EmptyMessage="select please" MaxHeight="200px" ShowToggleImage="True"

Width="50%" AllowCustomText="True">

<ItemTemplate>

<div id="div1">

<telerik:RadTreeView ID="rvt1" runat="server" Width="100%" Height="250px"

DataSourceID="ds1" DataFieldID="ID" DataValueField="ID"

DataFieldParentID="ParentID" DataTextField="Name" OnClientNodeClicking="nodeClicking" >

<DataBindings>

<telerik:RadTreeNodeBinding Expanded="true" />

</DataBindings>

</telerik:RadTreeView>

</div>

</ItemTemplate>

<Items>

<telerik:RadComboBoxItem Text="" />

</Items>

</telerik:RadComboBox>

<asp:ObjectDataSource ID="ds2" runat="server"

EnablePaging="True" OnSelecting="dds2_Selecting"

SelectMethod="GetList" TypeName="BLL">

<SelectParameters>

<asp:Parameter Name="p1" Type="Int32" />

<asp:Parameter Name="p2" Type="Int32" />

<asp:Parameter Name="p3" Type="Boolean" DefaultValue="True" />

</SelectParameters>

</asp:ObjectDataSource>

ComboBox

answered on 26 May 2011

6 answers

132 views

LoadContentFile Error

Hi all,

I am trying to load a content file into the menu using  LoadContentFile but keep getting an error. I downloaded the latest exe on the 19/032008 with the TelerikWeb.UI.dll version beeing 2007.3.1425.35.

I have succesfully got this working with the old controls so I know the method works but just cant get it to work with the new Prometheus menu control.

My code is as follows:

Menu Control:
<telerik:RadMenu ID="rmTopMenu" runat="server" Skin="Outlook"></telerik:RadMenu>

Code behind:
rmTopMenu.LoadContentFile("~/Auth/Common/Controls/Menus/Contents/DefaultMenu.xml");

XML Structure:
<?xml version="1.0" encoding="utf-8" ?>
<Menu>
    <Group Flow="Horizontal">
        <Item Text="Item 1"></Item>
        <Item Text="Item 2"></Item>
        <Item Text="Item 3"></Item>
   </Group>
</Menu>

Error Message:
System.InvalidOperationException: <Group xmlns=''> was not expected.

Any ideas on this would be much appreciated.

Thanks

Craig

Menu

answered on 26 May 2011