Questions on UI for ASP.NET AJAX Forum

1 answer

98 views

RadDock AutoPostBack clears client-side databound RadGrids

I understand why this is happening, but I'm not sure the best way to handle it. The postback created when a RadDock is drag & dropped, closed, minimized, etc. is returning the HTML and overwriting the data bound RadGrids that are in the RadDocks within the RadDockZone that the RadDock is in. I don't want to requery the the web methods to repopulate the grids (kinda defeats the benefit of client-side data binding).

I have AutoPostBack enabled on the docks because I want to continuously persist the position/state of the docks. Is there anyway I can update the state of the docks via AJAX without doing a partial postback that overwrites my grid data (maybe by calling a WebMethod)? If so, how?

I've created a simple example page that demonstrates this issue (most controls are dynamically created because this is how the real application is).

Thanks!

*.aspx.vb

Imports Telerik.Web.UI

Imports System.Web.UI.WebControls

Partial Class DockClientDataBoundRadGrid

Inherits System.Web.UI.Page

Private _DockDataTable As System.Data.DataTable

Protected Sub RadDockLayout1_LoadDockLayout(ByVal sender As Object, ByVal e As Telerik.Web.UI.DockLayoutEventArgs) Handles RadDockLayout1.LoadDockLayout

Dim zones(1) As RadDockZone

Dim zone As RadDockZone

For i As Integer = 0 To zones.Length - 1

zone = New RadDockZone

zone.Orientation = Orientation.Vertical

zone.ID = "RadDockZone" & i

zones(i) = zone

Next

RadDockLayout1.Controls.Add(CreateDockContainer(zones))

For Each zone In zones

RadAjaxManager1.AjaxSettings.AddAjaxSetting(zone, zone)

Next

Dim docks(DockDataTable.Rows.Count - 1) As RadDock

Dim dock As RadDock

Dim rowCount As Integer = 0

For Each row As System.Data.DataRow In DockDataTable.Rows

dock = New RadDock

dock.AutoPostBack = True

dock.DockMode = DockMode.Docked

dock.UniqueName = "dock-" & rowCount

dock.Title = row.Item("title")

Dim _RadGrid As RadGrid = CreateRadGrid("RadGrid-" & rowCount)

dock.ContentContainer.Controls.Add(_RadGrid)

RadDockLayout1.Controls.Add(dock)

docks(rowCount) = dock

rowCount += 1

RadAjaxManager1.AjaxSettings.AddAjaxSetting(dock.ContentContainer, dock.ContentContainer)

Next

Dim lastZoneId As Integer = 0

For Each dock In docks

If zones.Length <= lastZoneId Then lastZoneId = 0

zone = zones(lastZoneId)

e.Indices(dock.UniqueName) = zone.Docks.Count

e.Positions(dock.UniqueName) = zone.ID

lastZoneId += 1

Next

End Sub

Private Function CreateRadGrid(ByVal ControlID As String) As RadGrid

Dim _RadGrid As New RadGrid

_RadGrid.ID = ControlID

_RadGrid.ClientSettings.ClientEvents.OnCommand = "RadGrid1_DataBinding"

_RadGrid.ClientSettings.DataBinding.Location = "~/DockClientDataBoundRadGrid.aspx"

_RadGrid.ClientSettings.DataBinding.SelectMethod = "GetData"

_RadGrid.ClientSettings.DataBinding.SelectCountMethod = "GetDataCount"

_RadGrid.ClientSettings.DataBinding.StartRowIndexParameterName = "startRowIndex"

_RadGrid.ClientSettings.DataBinding.MaximumRowsParameterName = "maxRows"

_RadGrid.ClientSettings.DataBinding.EnableCaching = True

_RadGrid.PageSize = 10

Dim c1 As New GridBoundColumn

c1.HeaderText = "Name"

c1.SortExpression = "Name"

c1.DataField = "Name"

c1.UniqueName = "Name"

c1.DataType = System.Type.GetType("System.String")

_RadGrid.MasterTableView.Columns.Add(c1)

Return _RadGrid

End Function

Protected Function CreateDockContainer(ByRef zones As Telerik.Web.UI.RadDockZone()) As System.Web.UI.WebControls.WebControl

Dim tbl As System.Web.UI.WebControls.Table = New System.Web.UI.WebControls.Table

tbl.ID = "tblDockContainer"

tbl.Style.Add("width", "100%")

Dim row As System.Web.UI.WebControls.TableRow = New System.Web.UI.WebControls.TableRow

Dim cell As System.Web.UI.WebControls.TableCell

tbl.Rows.Add(row)

Dim colSize As String = Math.Floor(100 / zones.Length).ToString() & "%"

For Each zone As Telerik.Web.UI.RadDockZone In zones

cell = New System.Web.UI.WebControls.TableCell

cell.VerticalAlign = VerticalAlign.Top

cell.Controls.Add(zone)

cell.Style.Add("width", colSize)

row.Cells.Add(cell)

Next

Return tbl

End Function

Protected ReadOnly Property DockDataTable() As System.Data.DataTable

Get

If _DockDataTable Is Nothing Then

_DockDataTable = New System.Data.DataTable

_DockDataTable.Columns.Add(New System.Data.DataColumn("title", System.Type.GetType("System.String")))

Dim row As System.Data.DataRow

For i As Integer = 0 To 5

row = _DockDataTable.NewRow

row("title") = "Dock Title " & i

_DockDataTable.Rows.Add(row)

Next

_DockDataTable.AcceptChanges()

End If

Return _DockDataTable

End Get

End Property

<System.Web.Services.WebMethod()> _

Public Shared Function GetData(ByVal startRowIndex As Integer, ByVal maxRows As Integer) As IEnumerable

Dim list As New Generic.List(Of Entity)

For i As Integer = startRowIndex To maxRows

Dim e As New Entity

e.Name = "Entity " & i

list.Add(e)

Next

Return list

End Function

<System.Web.Services.WebMethod()> _

Public Shared Function GetDataCount() As Integer

Return 51

End Function

Public Class Entity

Public Name As String

End Class

*.aspx

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="DockClientDataBoundRadGrid.aspx.vb" Inherits="DockClientDataBoundRadGrid" %>

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title></title>

</head>

<body>

<form id="form1" runat="server">

<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server"></telerik:RadAjaxManager>

<telerik:RadDockLayout ID="RadDockLayout1" runat="server"></telerik:RadDockLayout>

<telerik:RadScriptBlock ID="RadScriptBlock1" runat="server">

<script type="text/javascript">

function RadGrid1_DataBinding(sender, args) {}

</script>

</telerik:RadScriptBlock>

</form>

</body>

</html>

Dock

answered on 26 Aug 2011

0 answers

497 views

Steps to solve error: "XXX is not a registered script control. Script controls must be registered using RegisterScriptControl() before calling RegisterScriptDescriptors()"

Hi,
I've been searching the forums and it looks like this is a common problem. Unfortunately, I cannot find a solution, partly because many of these issues were solved with support tickets, but the forum posts never got the details of the fix.

Can you please give me steps to take to troubleshoot it? What should I be looking at? Because of the time involved to strip the project down, I'd rather not submit my project, just looking for the general direction I should take in my troubleshooting.

Related threads: http://www.telerik.com/community/forums/aspnet-ajax/scheduler/radgrid-inside-scheduler-advanced-edit-insert-form.aspx
AND: http://www.telerik.com/community/forums/aspnet-ajax/scheduler/script-control-radajaxmanager1-is-not-a-registered-script-control.aspx

Thanks in advance,
Dan

<edit>
OK, so I have a RadWindowManager in 2 UserControls that are included in my advanced form. I made it past this error, I set each RadWindowManager and each RadWindow to RegisterWithScriptManager="false".

Unfortunately this brought me to the following error if I trigger an action that should show the RadWindow from the User Control: "Multiple controls with the same ID 'RadWindowManager3_alerttemplate' were found..."

I have everything ajaxified. Googling this error tells me that it is probably because my usercontrol is getting added dynamically more than once. How do I fix this?

Thanks,
Dan

</edit>

<edit2>
Hi, I'm preparing to submit a support ticket.
</edit2>

Scheduler

asked on 26 Aug 2011

2 answers

156 views

[Solved] Inconsistent Rad Control Button being displayed

Hi Telerik Team,

I am currently using a telerik:RadButton and encountering some cross-browser issues with Chrome. Please see the screenshot for a better view of the problem.

I've also provided a code snippet of the solution :

<%--Component--%>

<td style="width: 192px;">

<table cellpadding="0" cellspacing="0" width="100%">

<tr>

<td>

<telerik:RadButton ID="chkBoxComponent" runat="server" ToggleType="CheckBox" ButtonType="StandardButton"

SkinID="filterCheckBox" AutoPostBack="false">

<ToggleStates>

<telerik:RadButtonToggleState Text="Exclude Components Filter" PrimaryIconCssClass="rbToggleCheckboxChecked" />

<telerik:RadButtonToggleState Text="Include Components Filter" PrimaryIconCssClass="rbToggleCheckbox" />

</ToggleStates>

</telerik:RadButton>

</td>

</tr>

<tr>

<td>

<asp:ListBox ID="listBoxComponent" SkinID="listboxFilter" runat="server"></asp:ListBox>

</td>

</tr>

</table>

</td>

I have also debugged it by using Chrome's Inspect Element feature and found that the following css class is causing the issue. The problem is that if I make any alterations to it, other rad controls will not display properly as I believe it's a key class to all the Rad Controls.

.rbSkinnedButton {

padding-right: 2px;

}

Any suggestions?
Thanks

Regards,
Navnit

Button

answered on 26 Aug 2011

10 answers

373 views

Is the Telerik.Web.UI.dll too big?

Hi,
   We are looking for a flexable controls for asp.net, and we found the Telerik RadControls!
It's so amazing and we all love it!
   The only one thing that we worry abount is the size( >16MB)!!
   For example,If we just use a ComboBox control of Telerik RadControls in a page, we need to load the Telerik.Web.UI.dll to the memory first?
   And if that's yes, int that case thousands of users visit the page in the same time, our server can take it?
   In a word , is the Telerik RadControls work well in the distributed application?
I'm looking forward to your reply.
Thanks!

General Discussions

answered on 26 Aug 2011

7 answers

78 views

Alignments Getting changed When Hiding Edit Column

Hi Telerik Team,

Its been a great Pleasure to Work with u r Telerik Controls.i have been using Telerik Controls from past one year and i feel so comfortable with u r controls.Thanks for that

My issue here is that When i'm trying to hide a EditcommandColumn through Code behind, its changing the Alignments of the other columns..can u please help me in this issue

Code i used in Item Data bound Event
if (e.Item is GridEditableItem && !(e.Item.IsInEditMode))
{
GridDataItem dataItem = e.Item as GridDataItem;
dataItem["EditColumn"].Visible = false;
}

Thanks,
Vijay

Grid

answered on 26 Aug 2011

4 answers

197 views

Google like filtering using the filter template

I have tried searching through threads for 20 minutes on how to use the new FilterTemplate functionality of the RadGrid to apply google type filters to my columns, but can't find anything.

Is there any working example of the google type filtering using the FilterTemplate ?

I would prefer this as my Grid has several non text columns that the google filter does not really apply to, and we would like to use normal filter functionality for that, but wire up the google suggest type for the text fields.

Also to create the grid declaratively with sqldatasource is big bonus.

Any help?

Grid

answered on 26 Aug 2011

3 answers

96 views

google like filtering not applying properly

I had copied the code for enabling google like filter from this URL Google Like Filter Demo
it works fine it we didn't specified any Data bound column in Design time. My requirement is i have Design time Bound Column's and i am binding data to Grid. When i tried to implement Google like filtering its not working as i want. Please have a look on JPG image attached to this post.

red crossed filter is not required
green color filter which i am generating using overriding template column

its creating extra columns in grid for goolge like filtering. Its not overriding existing filter column

Filter

answered on 26 Aug 2011

5 answers

203 views

[Solved] ASP.NET Ajax Q1 2011 and Visual Studio 2005

Hello,

I would like to know if ASP.NET Ajax Q1 2011 has still the Visual Studio 2005 support? Or it has been dropped?

On my Windows, Visual Studio 2005 and SQL Server 2005 are installed, with Framework .NET 2.0.
I wanted to install this new Q1 2011 and what was my surprise that the installer requieres the Framework .NET 3.5 or 4 to be running.

If Q1 2011 has still Visual Studio 2005 support, what to do to install it without installing the Framework .NET 3.5 or 4?

Thank your for your answer,
Alain

Installer and VS Extensions

answered on 26 Aug 2011

2 answers

200 views

[Solved] list of complex objects as datasource

I want to try and use a list of objects as my data source where the object contains multiple fields and I am populating the listbox programmatically. If I set the Datasource of my list box to the object how can I set what fields actually show up in the listbox I tried using templates but I couldn't get that to work.

List<Keyword> resultList = keywordService.FindKeywords();

canonicalSearchResults.DataSource = resultList;

canonicalSearchResults.DataBind();

I want the Keyword's name field to appear in the textbox but be able to keep the datasource as a list of keywords so that I can later access them. Right now it calls the tostring method and displays the result but the toString method is different than what I want displayed

ListBox

answered on 26 Aug 2011

1 answer

1.1K+ views

The given assembly name or codebase was invalid. (Exception from HRESULT: 0x80131047)

Hello Telerik,
We are encountering an error that is very perplexing.
we found how to correct this,
if you would indicate why this fix works. This was extremely hard to
find. Is there a best practice as to how this section should be formatted in web config going forward...to avoid this.

Removing this block bypasses the error below, but it has to do with - Telerik.Web.UI.Skins.Web20.Grid.Web20.css:

<

telerik:RadStyleSheetManager ID="RadStyleSheetManagerPrePaidSettlements" runat="server">

<telerik:StyleSheetReference Name="Telerik.Web.UI.Skins.Web20.Grid.Web20.css" Assembly="Telerik.Web.UI" />

</StyleSheets>

</telerik:RadStyleSheetManager>

in the web config.....to fix
move this entry below after the 2nd verb entry and the error noted will be gone.

<

add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false"/>

<

httpHandlers>

<

remove verb="*" path="*.asmx"/>

<

add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>

--place here..
<

add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>

<

add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false"/>

<

add path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler" verb="*" validate="false"/>

<

add path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" validate="false"/>

<

add path="Telerik.Web.UI.DialogHandler.aspx" type="Telerik.Web.UI.DialogHandler" verb="*" validate="false"/>

<

add path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" verb="*" validate="false"/>

<

add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false"/>

<

add verb="*" path="Reserved.ReportViewerWebControl.axd" type="Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" validate="false"/>

</

httpHandlers>

System.IO.FileLoadException: The given assembly name or codebase was invalid. (Exception from HRESULT: 0x80131047)
   at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMarkHandle stackMark, Boolean loadTypeFromPartialName, ObjectHandleOnStack type)
   at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark, Boolean loadTypeFromPartialName)
   at System.RuntimeType.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark)
   at System.Type.GetType(String typeName)
   at Telerik.Web.UI.WebResource.Exists(HttpContext context, String path, String applicationPath)
   at Telerik.Web.UI.RadStyleSheetManager.OnPreRender(EventArgs e)
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Control.PreRenderRecursiveInternal()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

ScriptManager and StyleSheetManager

answered on 26 Aug 2011