Questions on UI for ASP.NET AJAX Forum

4 answers

159 views

[Solved] GroupsDefaultExpanded="false" Causes Export to be Blank

I have a Grid with a Group setup. The grid has a CSV export button, uses an SqlDataSource, and is not ajaxified.

When GroupsDefaultExpanded="true" the export has all of the data but when GroupsDefaultExpanded="false" the export is empty.

How can I force the grid to export the data even though it begins with all groups collapsed?

Grid

answered on 16 Nov 2009

3 answers

148 views

JS-Error Combobox Load On Demand

While using Combobox with LoadOnDemand with PC-Browser there is no error displayed and all is fine -
when using WindowsMobile-based devices and Opera Mobile 9.7 I get the following error-messages:

Invalid object passed in, ':' or '}' expected.
Unrecognized escape sequence.
Unterminated string passed in.

{"Command":"LOD","Text":"bre","ClientState":{"value":"","text":""."enabled ....

Do you have any idea on what happens here and how to fix this?

Best regards,
Torben

Ajax

answered on 16 Nov 2009

1 answer

148 views

[Solved] Having problems dragging RadTreeNode into RadDockZone populated with RadDocks

I'm dynamically creating RadDock's within a RadZone (vertically). In order to add another RadDock in the RadZone, I am dragging a RadTreeNode into the RadDockZone. The problem I am running into is that if I drop a RadTreeNode on a RadDock that has been dynamically created in the RadDockZone the OnNodeDrop event is not fired.

I've have verified that OnClientNodeDropping is still called regardless. The only difference is that the server side event is not fired when dropped on the RadDock, which is in the RadDockZone....but the server side event is fired when dropped directly on the RadDockZone.

Has anyone run into this issue before?

Dock

answered on 16 Nov 2009

4 answers

176 views

Upgrade to 2009 Q3 question

I couldn't find any documentation for upgrading to 2009 Q3. Do I need to uninstall the previous version first, as I only need the current release? Are there any gotchas in doing this? I just want to make absolutely sure before potentially wasting my dev environment

General Discussions

answered on 16 Nov 2009

6 answers

368 views

Crash with GridTemplateColumn (bugreport)

This will crash (however this construction is allowed in standart asp.net grid component):

<telerik:GridTemplateColumn Visible="false">

    <EditItemTemplate>

            <asp:DropDownList ID="ddCategory" Runat="server" CssClass="GeneralDropDownList"></asp:DropDownList>

    </EditItemTemplate>

</telerik:GridTemplateColumn>

System crashes on Databind with long message

System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.NullReferenceException: Object reference not set to an instance of an object.

   at Telerik.Web.UI.GridTemplateColumn.FillValues(IDictionary newValues, GridEditableItem editableItem)

   at Telerik.Web.UI.GridEditableItem.ExtractValues(IDictionary newValues)

   at Telerik.Web.UI.GridTableView.ExtractValuesFromItem(IDictionary newValues, GridEditableItem editedItem)

   at Telerik.Web.UI.GridItemBuilder.CreateItems(GridGroupingContext group)

   at Telerik.Web.UI.GridTableView.CreateItems(IEnumerator enumerator, GridColumn[] columns, ControlCollection controls)

   at Telerik.Web.UI.GridTableView.CreateControlHierarchy(Boolean useDataSource)

   at Telerik.Web.UI.GridTableView.CreateChildControls(IEnumerable dataSource, Boolean useDataSource)

   at System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data)

   at System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data)

   at System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback)

   at System.Web.UI.WebControls.DataBoundControl.PerformSelect()

   at Telerik.Web.UI.GridTableView.PerformSelect()

   at System.Web.UI.WebControls.BaseDataBoundControl.DataBind()

   at Telerik.Web.UI.GridTableView.DataBind()

   at Telerik.Web.UI.RadGrid.DataBind()

   at System.Web.UI.Control.DataBindChildren()

   at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)

   at System.Web.UI.Control.DataBind()

   at System.Web.UI.Control.DataBindChildren()

   at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)

   at System.Web.UI.Control.DataBind()

   at Telerik.Web.UI.GridItem.SetupItem(Boolean dataBind, Object dataItem, GridColumn[] columns, ControlCollection rows)

   at Telerik.Web.UI.GridItemBuilder.InitializeItem(Int32 dataSourceIndex, String& nextItemHierarchicalIndex, Boolean& itemIsInEditMode)

   at Telerik.Web.UI.GridItemBuilder.CreateItems(GridGroupingContext group)

   at Telerik.Web.UI.GridTableView.CreateItems(IEnumerator enumerator, GridColumn[] columns, ControlCollection controls)

   at Telerik.Web.UI.GridTableView.CreateControlHierarchy(Boolean useDataSource)

   at Telerik.Web.UI.GridTableView.CreateChildControls(IEnumerable dataSource, Boolean useDataSource)

   at System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data)

   at System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data)

   at System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback)

   at System.Web.UI.WebControls.DataBoundControl.PerformSelect()

   at Telerik.Web.UI.GridTableView.PerformSelect()

   at System.Web.UI.WebControls.BaseDataBoundControl.DataBind()

   at Telerik.Web.UI.GridTableView.DataBind()

   at Telerik.Web.UI.RadGrid.DataBind()

   at Sleza4eEngine.LRMup.controls.components.BFfamily.AttachmentsControl.LoadGrid(Boolean AddNew) in D:\Sleza4e\Job\SourceCode\lrmup\src\LRMup\controls\components\BFfamily\main\AttachmentsControl.ascx.cs:line 71

   at Sleza4eEngine.LRMup.controls.components.BFfamily.AttachmentsControl.processData(XmlNode dataNode) in D:\Sleza4e\Job\SourceCode\lrmup\src\LRMup\controls\components\BFfamily\main\AttachmentsControl.ascx.cs:line 32

   at Sleza4eEngine.LRMup.controls.content.file.LoadGroups(Boolean FilePostBack) in D:\Sleza4e\Job\SourceCode\lrmup\src\LRMup\controls\content\file.ascx.cs:line 329

   at Sleza4eEngine.LRMup.controls.content.file.Page_Load(Object sender, EventArgs e) in D:\Sleza4e\Job\SourceCode\lrmup\src\LRMup\controls\content\file.ascx.cs:line 210

   at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e)

   at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e)

   at System.EventHandler.Invoke(Object sender, EventArgs e)

   at System.Web.UI.Control.OnLoad(EventArgs e)

   at System.Web.UI.Control.LoadRecursive()

   at System.Web.UI.Control.LoadRecursive()

   at System.Web.UI.Control.LoadRecursive()

   at System.Web.UI.Control.LoadRecursive()

   at System.Web.UI.Control.LoadRecursive()

   at System.Web.UI.Control.LoadRecursive()

   at System.Web.UI.Control.LoadRecursive()

   at System.Web.UI.Control.LoadRecursive()

   at System.Web.UI.Control.LoadRecursive()

   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

   --- End of inner exception stack trace ---

   at System.Web.UI.Page.HandleError(Exception e)

   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

   at System.Web.UI.Page.ProcessRequest()

   at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)

   at System.Web.UI.Page.ProcessRequest(HttpContext context)

   at ASP.start_aspx.ProcessRequest(HttpContext context) in c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\a159c958\db1b23ec\App_Web_start.aspx.cdcab7d2.3eyik7my.0.cs:line 0

   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

That took some time to me to find the reason of the problem (my current grid is quite complex)
User just need to add empty ItemTemplate. However, it was not easy to find the reason

<telerik:GridTemplateColumn Visible="false">

<ItemTemplate>

</ItemTemplate>

    <EditItemTemplate>

            <asp:DropDownList ID="ddCategory" Runat="server" CssClass="GeneralDropDownList"></asp:DropDownList>

    </EditItemTemplate>

</telerik:GridTemplateColumn>

Grid

answered on 16 Nov 2009

5 answers

274 views

formview with radgrid

hi, i just downloaded your controls and they look wonderful, so i will make tests to finalize my decision to purchase.

i am trying to do the following,i dont want to use radgrid edit functions, i want to add a rad grid with records and i want to click edit button then it will show form view with the records data so i can update or insert a new record, my questions are

-what is the best approach to make edit button?

-best way to pass the record id to the form view without page refresh?

-i want when i click edit to hide the grid and show the form view and vise versa when i update the record to hide form view and show grid view so should i add to the button click even a command to make grid.visible = false and form view.visible = true and vise versa ? or should i do that through java script to change the css class for each ?

-when i finish the edit and go back to hte grid i want the edited row grid to be highlighted ?

- best approch to ajexefy the whole process?

thx in advanced

Grid

answered on 16 Nov 2009

5 answers

243 views

HttpRequestValidationException error

We have a RadComboBox with EnableLoadOnDemand set to true which can potentially contain angle brackets and such. The RadComboBox shows this information with no difficulty even though it does not appear to be HtmlEncoded. When an event fires and the system does a postback, we get an HttpRequestValidationException. If I HtmlEncode the item text before I populate the combobox, I see the encoding rather than the encoded character. I.e., I see & rather than an ampersand. I realize I can globally disable request validation but that is far from an ideal solution. Where do I need to HtmlEncode the text so that it displays properly and does not throw an exception on submitting the page?

ComboBox

answered on 16 Nov 2009

2 answers

174 views

[Solved] Can you use a RadComboBox in XMLHttpPanel?

I'd like to know if it's possible to use a RadCombobox within an XMLHttpPanel.

My attempts thus far yield the following error:

"XMLHttpPanel Callback Loading error:
Exception=Script control 'cmbo2' is not a registered script control. Script controls must be registered using RegisterScriptControl() before calling RegisterScriptDescriptors().
Parameter name: scriptControl"

My code looks like this:

    
            <%@ Page Language="VB" %> 
        
            <%@ Register assembly="Telerik.Web.UI" namespace="Telerik.Web.UI" tagprefix="telerik" %> 
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/tr/xhtml11/DTD/xhtml11.dtd"> 
        
            <script runat="server">  
        
                Protected Overrides Sub OnPreRender(ByVal e As EventArgs)  
        
                    MyBase.OnPreRender(e)  
        
                    ScriptManager1.RegisterScriptControl(Of RadComboBox)(cmbo2)  
        
                End Sub  
        
                Protected Sub XmlHttpPanel_ServiceRequest(ByVal sender As Object, ByVal e As RadXmlHttpPanelEventArgs)  
        
                    Dim val As String = e.Value  
        
                    'Simulate a longer process  
        
                    System.Threading.Thread.Sleep(1000)  
        
                    cmbo2.Items.Clear()  
        
                    lbl1.Text = Now 
        
                End Sub  
        
            </script> 
        
            <html xmlns="http://www.w3.org/1999/xhtml">  
        
                <head id="Head1">  
        
                    <title></title>  
        
                    <script language="javascript" type="text/javascript">  
        
                        function cmboChanged(sender, args) {  
        
                            var panel = $find("<%=RadXmlHttpPanel1.ClientID%>");  
        
                            panel.set_value("");  
        
                        }  
        
                    </script>                  
        
                </head> 
        
                <body> 
        
                <form id="form1" method="post" runat="server">  
        
                    <telerik:RadScriptManager runat="server" ID="ScriptManager1" /> 
        
                    <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Skin="Default"></telerik:RadAjaxLoadingPanel> 
        
                    <telerik:RadComboBox runat="server" ID="cmbo1" OnClientSelectedIndexChanged="cmboChanged" > 
        
                        <Items> 
        
                            <telerik:RadComboBoxItem Text="1" Value="1" /> 
        
                            <telerik:RadComboBoxItem Text="2" Value="2" /> 
        
                            <telerik:RadComboBoxItem Text="3" Value="3" /> 
        
                            <telerik:RadComboBoxItem Text="4" Value="4" /> 
        
                        </Items> 
        
                    </telerik:RadComboBox> 
        
                    <telerik:RadXmlHttpPanel   
        
                        ID="RadXmlHttpPanel1" runat="server"   
        
                        LoadingPanelID="RadAjaxLoadingPanel1" 
        
                        OnServiceRequest="XmlHttpPanel_ServiceRequest">  
        
                        <telerik:RadComboBox runat="server" ID="cmbo2" > 
        
                            <Items> 
        
                                <telerik:RadComboBoxItem Text="1" Value="1" /> 
        
                                <telerik:RadComboBoxItem Text="2" Value="2" /> 
        
                                <telerik:RadComboBoxItem Text="3" Value="3" /> 
        
                                <telerik:RadComboBoxItem Text="4" Value="4" /> 
        
                            </Items> 
        
                        </telerik:RadComboBox>      
        
                        <asp:Label runat="server" id="lbl1" /> 
        
                    </telerik:RadXmlHttpPanel> 
        
                    </form> 
        
                </body> 
        
            </html>

XmlHttpPanel

answered on 16 Nov 2009

1 answer

184 views

Disable double click on title bar?

I'm not sure what is firing this event but in certain cases where you double click or single click the titlebar, the dock will tries to reposition itself again in the dockzone.
In certain extreme cases, it will move to another dockzone.
I would like to remove this behavior from the dock as my layout is fixed.
Thanks.

Dock

answered on 16 Nov 2009

1 answer

94 views

Apply Filter for export only

I need to export a subset of documents from a grid. Here is the flow:

1. User Clicks export
2. A popup window displays with date fields (To and From)
3. User populates fields and clicks "Go"
4. Only the rows within the user entered dates are exported
5. The grid on the screen is unchanged

I don't want to filter the grid on the screen. I would like to apply the filter only in the code behind while filtering. Is this possible?

Thanks.

- Adam L

Grid

answered on 16 Nov 2009