Questions on UI for ASP.NET AJAX Forum

1 answer

47 views

When i set width of radgrid and set property AllowScroll="true" so it works Fine in Firefox and Chrome but in IE8 width is not set.
Code is below :

<telerik:RadGrid ID="grdAssetsIn" runat="server" OnLoad="grdAssetsIn_OnLoad" OnNeedDataSource="grdAssetsIn_NeedDataSource"
SkinID="CR" GridLines="None" AllowPaging="True" EnableViewState="false" AutoGenerateColumns="False" OnItemDataBound="grdAssetsIn_ItemDataBound"
AllowMultiRowSelection="true" Width="600px">
<MasterTableView EnableViewState="true" Width="600px" PageSize="10" EnableNoRecordsTemplate="true"
DataKeyNames="AssetID" ClientDataKeyNames="AssetID" >
<NoRecordsTemplate>
<div style="text-align: left; >
<asp:Label ID="lblEmptyMsg" runat="server" meta:resourcekey="lblEmptyMsg2Resource1"></asp:Label></div>
</NoRecordsTemplate>
</MasterTableView>
<PagerStyle AlwaysVisible="True" />
<ClientSettings EnableRowHoverStyle="true">
<Selecting AllowRowSelect="True" />
<Scrolling AllowScroll="True" UseStaticHeaders="True"></Scrolling>
<ClientEvents OnGridCreated="GridCreated" />
<ClientEvents OnRowSelected="RowSelected" OnRowDeselected="RowDeselected" />
</ClientSettings>
</telerik:RadGrid>

Grid

answered on 12 Dec 2012

1 answer

47 views

Footer text disappears when there is postback in the grid

HI,
I have added a GridCalculated column as below:

<telerik:GridCalculatedColumn DataFormatString="{0:C}" DataType="System.Double" HeaderText="Extended Price"

UniqueName="ExtendedPrice" DataFields="OrderQuantity,UnitPrice" Expression="{0}*{1}"

FooterText="Total : " Aggregate="Sum">

</telerik:GridCalculatedColumn>

In the footer "Total : " footer text is shown for the first time, when some postback happens the footer text is getting disappered. However the total amount is shown. Only the the "Footer text" is not shown.

How to fix this?
Thanks

Grid

answered on 12 Dec 2012

1 answer

111 views

Bind to textboxes based on selection of treeview nodes.

Hi,

I calling this function from other page (gridview editclick event) .
So then EditValue(refer code) has some value and binding in to treeview .

Private Sub BindTreeView(ByVal dt As DataTable, ByVal EditValue As String, ByVal searchedColumn As String)

Try

Dim siteData As New List(Of TreeViewCheckbox)()

If dt IsNot Nothing AndAlso dt.Rows.Count > 0 Then

siteData.Add(New TreeViewCheckbox(1, 0, "Select All"))

Dim i As Integer = 0

Do While (i < dt.Rows.Count)

Dim row As DataRow = dt.Rows(i)

Dim srColumn As String = row(searchedColumn)

i = (i + 1)

siteData.Add(New TreeViewCheckbox(i + 1, 1, srColumn))

Loop

End If

If Not String.IsNullOrEmpty(EditValue) Then

siteData.Add(New TreeViewCheckbox(1, 0, "Select All"))

siteData.Add(New TreeViewCheckbox(2, 1, EditValue.Trim()))

End If

tvChkSearchResult.DataTextField = "Text"

tvChkSearchResult.DataFieldID = "ID"

tvChkSearchResult.DataFieldParentID = "ParentID"

tvChkSearchResult.DataSource = siteData

tvChkSearchResult.DataBind()

If (siteData.Count = 0) Then

RadWindowManager1.RadAlert("No results found,Please try again.", 330, 100, Nothing, Nothing)

Else

tvChkSearchResult.ExpandAllNodes()

HideControls(True)

End If

Catch ex As Exception

RadWindowManager1.RadAlert(ex.Message, 330, 100, Nothing, Nothing)

End Try

End Sub

Here adding in to siteData ...

If Not String.IsNullOrEmpty(EditValue) Then

siteData.Add(New TreeViewCheckbox(1, 0, "Select All"))

siteData.Add(New TreeViewCheckbox(2, 1, EditValue.Trim()))

End If

Once datasource set by sitedata then I need to call event to fillup other 3 textboxes values that based on node value selected(edit value).

How I can do fill up textboxes ? please help me on this.

Thanks in advance ..

TreeView

answered on 12 Dec 2012

1 answer

92 views

NodeClick Event is not firing ?

Hi,

I have added treeview in my aspx page like this..

<asp:TableCell CssClass="dfv">

<telerik:RadTreeView ID="tvChkSearchResult" runat="server" OnNodeClick="tvChkSearchResult_NodeClick"

AutoPostBack="True" Width="300px" Height="200px" CheckBoxes="True" TriStateCheckBoxes="true"

CheckChildNodes="true">

</telerik:RadTreeView>

</asp:TableCell>

and binding here ...

Dim siteData As New List(Of TreeViewCheckbox)()

If dt IsNot Nothing AndAlso dt.Rows.Count > 0 Then

siteData.Add(New TreeViewCheckbox(1, 0, "Select All"))

Dim i As Integer = 0

Do While (i < dt.Rows.Count)

Dim row As DataRow = dt.Rows(i)

Dim srColumn As String = row(searchedColumn)

i = (i + 1)

siteData.Add(New TreeViewCheckbox(i + 1, 1, srColumn))

Loop

End If

If Not String.IsNullOrEmpty(EditValue) Then

siteData.Add(New TreeViewCheckbox(1, 0, "Select All"))

siteData.Add(New TreeViewCheckbox(2, 1, EditValue.Trim()))

End If

tvChkSearchResult.DataTextField = "Text"

tvChkSearchResult.DataFieldID = "ID"

tvChkSearchResult.DataFieldParentID = "ParentID"

tvChkSearchResult.DataSource = siteData

tvChkSearchResult.DataBind()

Now I would like to fill up values in to textboxes that is based on selection on treeview.

but these events are not firing..

Protected Sub tvChkSearchResult_NodeCheck(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadTreeNodeEventArgs) Handles tvChkSearchResult.NodeCheck

If tvChkSearchResult.SelectedNode.Checked Then

Dim s As String = ""

End If

End Sub

Protected Sub tvChkSearchResult_NodeClick(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadTreeNodeEventArgs) Handles tvChkSearchResult.NodeClick

If tvChkSearchResult.SelectedNode.Checked Then

Dim s As String = ""

End If

End Sub

Please help me on how to fire events ?

Thanks in advance..

TreeView

answered on 12 Dec 2012

1 answer

84 views

Response cached for TreeView events

So for instance when someone selects an action that is handled by the server side node edit handler it works fine right then. But if you susbsequently click refresh in the browser (IE8, IE9) it fires the exact same event again. Not a very desirable behavior.

I've tried resetting the __EVENTTARGET and __EVENTARGUMENT values, but that doesn't work. I've seen references to using $.ajaxSetup({cache:false}); to prevent that, but I'm not sure what Telerik's equivalent is.

TreeView

answered on 12 Dec 2012

5 answers

391 views

RadGrid User Control Issue

Hi,

I am trying to create user control which has radgrid and sqldatasource controls. I added radgrid to a a new ascx as given below:

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="WebUserControl.ascx.cs"
    Inherits="Controls_WebUserControl" %>
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<telerik:RadGrid AutoGenerateColumns="False" ID="RadGrid1" DataSourceID="SqlDS" AllowFilteringByColumn="true"
    AllowPaging="True" AllowSorting="True" runat="server" OnPageIndexChanged="RadGrid1_PageIndexChanged" Skin="Office2007" PageSize="10" EnableViewState="true">
    <PagerStyle Mode="NextPrevNumericAndAdvanced" />
    <MasterTableView>
        <PagerStyle Mode="NextPrevNumericAndAdvanced" />
        <Columns>
            <telerik:GridBoundColumn DataField="RollNo" SortExpression="RollNo" HeaderButtonType="TextButton" ShowSortIcon="true"
                AutoPostBackOnFilter="false">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="StudentName" SortExpression="StudentName" HeaderButtonType="TextButton"
                ShowSortIcon="true">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="Address" SortExpression="Address" HeaderButtonType="TextButton" ShowSortIcon="true">
            </telerik:GridBoundColumn>
        </Columns>
    </MasterTableView>
</telerik:RadGrid>
<asp:SqlDataSource ID="SqlDS" ConnectionString="<%$ ConnectionStrings:cemiConnectionString %>"
    ProviderName="System.Data.SqlClient" SelectCommand="SELECT * FROM Student" runat="server" />

When I am changing pages using 1,2,3, it is working fine. But, when I click on pager images like next,previous,first, last is generating the following error:

Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.

Source Error:

An unhandled exception was generated during the execution of the
            current web request. Information regarding the origin and location of the
            exception can be identified using the exception stack trace below.

If the move the raggrid and sqldatasource to a new web page(default.aspx), everything is working fine.
Can I know the issue why it is generating error when I am adding it to user control???

Thanks,
Mahesh

Grid

answered on 12 Dec 2012

1 answer

72 views

gridsettingspersister with xmlserializer

I can not get the xmlserializer to work in the gridSettingsPersister.vb class. Once I move everything to use xmlserializer it blows up saying that the there is an error creating the xml document. The innerexception says.{"The type System.Collections.ArrayList may not be used in this context."}. Can anyone assist me on this one. below is my code for the persister.

There error occurs here:"There was an error generating the XML document."

Public Overloads Overrides Function ToString() As String
Dim formatter As New XmlSerializer(Me.GetType())
Dim writer As New StringWriter()
formatter.Serialize(writer, Me) - ******** This is the error line
Return writer.ToString()
End Function

Imports System

Imports System.Collections.Generic

Imports System.Web

Imports Telerik.Web.UI

Imports System.Web.UI.WebControls

Imports System.Collections

Imports System.Web.UI

Imports System.IO

Imports System.Xml.Serialization

''' <summary>

''' Imports and exports settings from a RadGrid instance.

''' </summary>

Public Class GridSettingsPersister

''' <summary>

''' Initializes an instance of GridSettingsPersister from a RadGrid instance

''' </summary>

''' <param name="grid">The RadGrid instance to import and exports settings</param>

Public Sub New(ByVal grid As RadGrid)

Me.New(grid, GridSettingsType.All)

End Sub

''' <summary>

''' Initializes an instance of GridSettingsPersister from a RadGrid instance

''' and a collection GridSettingsType values

''' </summary>

''' <param name="grid">The RadGrid instance to import and exports settings</param>

''' <param name="persistedSettingFlags">

''' A collection of GridSettingType values specifying the type of grid settings

''' to import or export

''' </param>

Public Sub New(ByVal grid As RadGrid, ByVal persistedSettingFlags As GridSettingsType)

_grid = grid

_persistedSettingTypes = persistedSettingFlags

_settings = New GridSettingsCollection()

_settings.ColumnSettings = New List(Of ColumnSettings)()

_settings.AutoGeneratedColumnSettings = New List(Of ColumnSettings)()

End Sub

Private _grid As RadGrid

Private _persistedSettingTypes As GridSettingsType

Private _settings As GridSettingsCollection

''' <summary>

''' The underlyiong RadGrid instance to import or export settings from

''' </summary>

Public ReadOnly Property Grid() As RadGrid

Get

Return _grid

End Get

End Property

''' <summary>

''' Gets or sets the GridSettingType flags that specify the grid settings to

''' export or import

''' </summary>

Public Overridable Property PersistedSettingTypes() As GridSettingsType

Get

Return _persistedSettingTypes

End Get

Set(ByVal value As GridSettingsType)

_persistedSettingTypes = value

End Set

End Property

Protected Overridable Property Settings() As GridSettingsCollection

Get

Return _settings

End Get

Set(ByVal value As GridSettingsCollection)

_settings = value

End Set

End Property

''' <summary>

''' Saves the current grid settings and returns the settings serilized to string

''' </summary>

Public Overridable Function SaveSettings() As String

Return GetSavedSettings().ToString()

'save item to DB then return the data

End Function

''' <summary>

''' Saves the current grid settings and retrieves the underlying

''' GridSettingsCollection instance that contains the grid settings

''' </summary>

Public Overridable Function GetSavedSettings() As GridSettingsCollection

If Grid Is Nothing Then

Throw New NullReferenceException()

End If

If IsSettingSpecified(GridSettingsType.Paging) Then

SavePagingSettings()

End If

If IsSettingSpecified(GridSettingsType.Grouping) Then

SaveGroupByExpressions()

End If

If IsSettingSpecified(GridSettingsType.Sorting) Then

SaveSortExpressions()

End If

If IsSettingSpecified(GridSettingsType.Filtering) Then

SaveFilterExpression()

End If

If IsSettingSpecified(GridSettingsType.ColumnSettings) Then

SaveColumnSettings()

End If

Return Settings

End Function

Protected Function IsSettingSpecified(ByVal settingType As GridSettingsType) As Boolean

Return (PersistedSettingTypes And GridSettingsType.All) = GridSettingsType.All OrElse (PersistedSettingTypes And settingType) = settingType

End Function

Protected Overridable Sub SavePagingSettings()

Settings.PageSize = Grid.MasterTableView.PageSize

End Sub

Protected Overridable Sub SaveGroupByExpressions()

Settings.GroupByExpressionsStates = New Object(Grid.MasterTableView.GroupByExpressions.Count - 1) {}

Dim i As Integer = 0

While i < Settings.GroupByExpressionsStates.Length

Settings.GroupByExpressionsStates(i) = (DirectCast(Grid.MasterTableView.GroupByExpressions(i), IStateManager)).SaveViewState()

System.Math.Max(System.Threading.Interlocked.Increment(i), i - 1)

End While

End Sub

Protected Overridable Sub SaveSortExpressions()

Settings.SortExpressionsState = (DirectCast(Grid.MasterTableView.SortExpressions, IStateManager)).SaveViewState()

End Sub

Protected Overridable Sub SaveFilterExpression()

Settings.FilterExpression = Grid.MasterTableView.FilterExpression

End Sub

Protected Overridable Sub SaveColumnSettings()

Settings.ColumnSettings.Clear()

For Each column As GridColumn In Grid.MasterTableView.Columns

Settings.ColumnSettings.Add(GetColumnSettings(column))

Next

Settings.AutoGeneratedColumnSettings.Clear()

For Each column As GridColumn In Grid.MasterTableView.AutoGeneratedColumns

Settings.AutoGeneratedColumnSettings.Add(GetColumnSettings(column))

Next

End Sub

Private Function GetColumnSettings(ByVal column As GridColumn) As ColumnSettings

Dim colSettings As New ColumnSettings()

colSettings.UniqueName = column.UniqueName

colSettings.Width = column.HeaderStyle.Width

colSettings.Visible = column.Visible

colSettings.Display = column.Display

colSettings.OrderIndex = column.OrderIndex

colSettings.CurrentFilterFunction = column.CurrentFilterFunction

colSettings.CurrentFilterValue = column.CurrentFilterValue

Return colSettings

End Function

Private Sub SetColumnSettings(ByRef column As GridColumn, ByVal setting As ColumnSettings)

column.Display = setting.Display

column.Visible = setting.Visible

column.HeaderStyle.Width = setting.Width

column.OrderIndex = setting.OrderIndex

column.CurrentFilterFunction = setting.CurrentFilterFunction

column.CurrentFilterValue = setting.CurrentFilterValue

End Sub

''' <summary>

''' Loads grids settings from a serialized string

''' </summary>

''' <param name="value">The string that contains the serialized settings</param>

Public Overridable Sub LoadSettings(ByVal value As String)

'retrieve from database the serialized string of data and call load settings

LoadSettings(GridSettingsCollection.LoadFromSerializedData(value))

End Sub

''' <summary>

''' Loads grids settings from a byte array

''' </summary>

''' <param name="data">The byte array that contains the serialized grid settings</param>

Public Overridable Sub LoadSettings(ByVal data As Byte())

LoadSettings(GridSettingsCollection.LoadFromSerializedData(data))

End Sub

''' <summary>

''' Loads grid settings from a GridSettingsCollection instance

''' </summary>

''' <param name="savedSettings">The GridSettingsCollection instance to load settings from</param>

Public Overridable Sub LoadSettings(ByVal savedSettings As GridSettingsCollection)

If Grid Is Nothing OrElse savedSettings Is Nothing Then

Throw New NullReferenceException()

End If

Settings = savedSettings

If IsSettingSpecified(GridSettingsType.Paging) Then

LoadPagingSettings()

End If

If IsSettingSpecified(GridSettingsType.Grouping) Then

LoadGroupByExpressions()

End If

If IsSettingSpecified(GridSettingsType.Sorting) Then

LoadSortExpressions()

End If

If IsSettingSpecified(GridSettingsType.Filtering) Then

LoadFilterExpression()

End If

If IsSettingSpecified(GridSettingsType.ColumnSettings) Then

LoadColumnSettings()

End If

End Sub

Protected Overridable Sub LoadPagingSettings()

If Grid.MasterTableView.AllowPaging AndAlso Settings.PageSize > 0 Then

Grid.MasterTableView.PageSize = Settings.PageSize

End If

End Sub

Protected Overridable Sub LoadGroupByExpressions()

If Settings.GroupByExpressionsStates Is Nothing Then

Return

End If

Grid.MasterTableView.GroupByExpressions.Clear()

For Each expressionState As Object In Settings.GroupByExpressionsStates

Dim expression As New GridGroupByExpression()

DirectCast(expression, IStateManager).LoadViewState(expressionState)

Grid.MasterTableView.GroupByExpressions.Add(expression)

Next

End Sub

Protected Overridable Sub LoadSortExpressions()

If Settings.SortExpressionsState Is Nothing Then

Return

End If

DirectCast(Grid.MasterTableView.SortExpressions, IStateManager).LoadViewState(Settings.SortExpressionsState)

End Sub

Protected Overridable Sub LoadFilterExpression()

Grid.MasterTableView.FilterExpression = Settings.FilterExpression

End Sub

Protected Overridable Sub LoadColumnSettings()

If Settings.AutoGeneratedColumnSettings.Count > 0 Then

AddHandler Grid.ColumnCreated, New GridColumnCreatedEventHandler(AddressOf Grid_ColumnCreated)

End If

For Each colSetting As ColumnSettings In Settings.ColumnSettings

Dim column As GridColumn = Grid.MasterTableView.GetColumnSafe(colSetting.UniqueName)

If column IsNot Nothing Then

SetColumnSettings(column, colSetting)

End If

Next

End Sub

Private Sub Grid_ColumnCreated(ByVal sender As Object, ByVal e As GridColumnCreatedEventArgs)

Dim colSettings As ColumnSettings = Nothing

For Each colSettings In Settings.AutoGeneratedColumnSettings

If colSettings.UniqueName = e.Column.UniqueName Then

colSettings = colSettings

Exit For

End If

Next colSettings

Dim column As GridColumn = e.Column

If colSettings IsNot Nothing Then

SetColumnSettings(column, colSettings)

End If

End Sub

End Class

''' <summary>

''' Enumerates the types of grid settings that can be persisted

''' </summary>

<Flags()> _

Public Enum GridSettingsType

Paging = 1

Sorting = 2

Filtering = 4

Grouping = 8

ColumnSettings = 16

All = 32

End Enum

''' <summary>

''' Represents a collection of grid settings

''' </summary>

<Serializable()> _

Public Class GridSettingsCollection

Private _pageSize As Integer

Private _groupByExpressionsStates As Object

Private _sortExpressionsState As Object

Private _filterExpression As String

Private _columnSettings As List(Of ColumnSettings)

Private _autoColumnSettings As List(Of ColumnSettings)

Public Property PageSize() As Integer

Get

Return _pageSize

End Get

Set(ByVal value As Integer)

_pageSize = value

End Set

End Property

Public Property GroupByExpressionsStates() As Object()

Get

Return _groupByExpressionsStates

End Get

Set(ByVal value As Object())

_groupByExpressionsStates = value

End Set

End Property

Public Property SortExpressionsState() As Object

Get

Return _sortExpressionsState

End Get

Set(ByVal value As Object)

_sortExpressionsState = value

End Set

End Property

Public Property FilterExpression() As String

Get

Return _filterExpression

End Get

Set(ByVal value As String)

_filterExpression = value

End Set

End Property

Public Property ColumnSettings() As List(Of ColumnSettings)

Get

Return _columnSettings

End Get

Set(ByVal value As List(Of ColumnSettings))

_columnSettings = value

End Set

End Property

Public Property AutoGeneratedColumnSettings() As List(Of ColumnSettings)

Get

Return _autoColumnSettings

End Get

Set(ByVal value As List(Of ColumnSettings))

_autoColumnSettings = value

End Set

End Property

''' <summary>

''' Returns the serialized object as string

''' </summary>

Public Overloads Overrides Function ToString() As String

Dim formatter As New XmlSerializer(Me.GetType())

Dim writer As New StringWriter()

formatter.Serialize(writer, Me)

Return writer.ToString()

End Function

''' <summary>

''' Returns the serialized object as byte array

''' </summary>

Public Function ToArray() As Byte()

Dim formatter As New XmlSerializer(Me.GetType())

Using stream As New MemoryStream()

formatter.Serialize(stream, Me)

Return stream.ToArray()

End Using

End Function

''' <summary>

''' Gets the GridSettingsCollectionInstance from its serialized string data

''' </summary>

''' <param name="data">The object as serialized string data</param>

Public Shared Function LoadFromSerializedData(ByVal data As String) As GridSettingsCollection

Dim formatter As New LosFormatter()

Return DirectCast(formatter.Deserialize(data), GridSettingsCollection)

End Function

''' <summary>

''' Gets the GridSettingsCollectionInstance from its serialized byte array

''' </summary>

''' <param name="data">The object as serialized byte array</param>

Public Shared Function LoadFromSerializedData(ByVal data As Byte()) As GridSettingsCollection

Dim formatter As New XmlSerializer(GetType(GridSettingsCollection))

Using stream As New MemoryStream(data)

Return DirectCast(formatter.Deserialize(stream), GridSettingsCollection)

End Using

End Function

End Class

''' <summary>

''' Represents a collection of grid column settings

''' </summary>

<Serializable()> _

Public Class ColumnSettings

Private _uniqueName As String

Private _orderIndex As Integer

Private _width As Unit

Private _visible As Boolean

Private _display As Boolean

Private _currentFilterFunction As GridKnownFunction

Private _currentFilterValue As String

Public Property UniqueName() As String

Get

Return _uniqueName

End Get

Set(ByVal value As String)

_uniqueName = value

End Set

End Property

Public Property OrderIndex() As Integer

Get

Return _orderIndex

End Get

Set(ByVal value As Integer)

_orderIndex = value

End Set

End Property

Public Property Width() As Unit

Get

Return _width

End Get

Set(ByVal value As Unit)

_width = value

End Set

End Property

Public Property Visible() As Boolean

Get

Return _visible

End Get

Set(ByVal value As Boolean)

_visible = value

End Set

End Property

Public Property Display() As Boolean

Get

Return _display

End Get

Set(ByVal value As Boolean)

_display = value

End Set

End Property

Public Property CurrentFilterFunction() As GridKnownFunction

Get

Return _currentFilterFunction

End Get

Set(ByVal value As GridKnownFunction)

_currentFilterFunction = value

End Set

End Property

Public Property CurrentFilterValue() As String

Get

Return _currentFilterValue

End Get

Set(ByVal value As String)

_currentFilterValue = value

End Set

End Property

End Class

Any help will be appreciated.
Thank You,
Brian

Grid

answered on 12 Dec 2012

1 answer

29 views

User Control Example - Stopping Auto Loading

I am working with the Demo example at
http://demos.telerik.com/aspnet-ajax/grid/examples/dataediting/usercontroleditform/defaultcs.aspx

I have it working on my system with my data, but if you notice the Demo and my version seem to open the UserControl form of the 2nd record in the dataset. I can't seem to find where in the code that is being specified and how to turn it off. I would like to use it to also be able to specify in a URL string to open a specified record, but if the string is empty not to auto load the 2nd record, as it is doing now.

THANKS!

Grid

answered on 12 Dec 2012

1 answer

53 views

Error with data copied from non html source

I've encountered unexpected error when I copied text file from a non-html source: System.Xml.XmlException: The 'span' start tag on line 290 position 43 does not match the end tag of 'p'. We're using radeditor on a .NET application and the source is from a test manager which is non html, I think it is in java. I've already set ContentAreaMode="div" and ContentFIlters="RemoveScript, ConvertToXhtml, FixEnclosingP".
Any idea what causes the issue. Thanks.

Editor

answered on 12 Dec 2012

1 answer

44 views

System.ArgumentOutOfRangeException

We have a RadToolTip containing a RadScheduler and two RadGrids. We want to keep these objects in sync, so we've employed a RadAjaxManager. Unfortunately, the events that we want to sync after are fired from controls within the NestedViews of the RadGrids. When EnableAjax is set to false, the following error is thrown:

Exception Details: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: ItemHierarchicalIndex

Source Error:


            An unhandled exception was generated during the execution of the current
            web request. Information regarding the origin and location of the
            exception can be identified using the exception stack trace below.

Stack Trace:


            [ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: ItemHierarchicalIndex]
   Telerik.Web.UI.GridItemCollection.get_Item(String hierarchicalIndex) +153
   Telerik.Web.UI.GridDataItemCollection.get_Item(String hierarchicalIndex) +50
   Telerik.Web.UI.RadGrid.LoadClientState(Dictionary`2 clientState) +7307
   Telerik.Web.UI.RadCompositeDataBoundControl.LoadPostData(String postDataKey, NameValueCollection postCollection) +305
   Telerik.Web.UI.RadCompositeDataBoundControl.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection) +73
   System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) +1068
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2773

What can we do? Thanks.

Ajax

answered on 12 Dec 2012