Questions on UI for ASP.NET AJAX Forum

1 answer

85 views

How do I trap the click event of a link control in a RadNodeTemplate

How do I trap the click event of a link control in a RadNodeTemplate. The node is created in code seen below.

Public Sub TreeInit()

Dim newNode2 As New AttachmentFolderNode("FolderNode")

Dim tvNodes As Telerik.Web.UI.RadTreeNodeCollection = RadTreeView1.Nodes

tvNodes.Add(newNode2)

RadTreeView1.DataBind()

End Sub

Public Class AttachmentFolderNode

Inherits RadTreeNode

Dim tp As New AttachmentFolderNodeTemplate

Public Sub New(nodeText As String)

MyBase.Text = nodeText

MyBase.ImageUrl = ".\Images\book.png"

tp.InstantiateIn(Me)

End Sub

End Class

Public Class AttachmentFolderNodeTemplate

Implements System.Web.UI.ITemplate

Public Overridable Sub InstantiateIn(container As Control) Implements ITemplate.InstantiateIn

Dim img1 As New Image

Dim img2 As New Image

Dim lbl_space1 As New Label

Dim lbl_space2 As New Label

lbl_space1.Text = " "

lbl_space2.Text = " "

Dim label1 As New Label

img1.ImageUrl = ".\Images\Close_Box.png"

img2.ImageUrl = ".\Images\edit.png"

Dim Link1 As New LinkButton

img1.ImageUrl = ".\Images\edit.png"

img1.ToolTip = "Edit"

Link1.Controls.Add(img1)

Dim Link2 As New LinkButton

img2.ImageUrl = "\Images\Close_box.png"

img2.ToolTip = "Delete"

Link2.Controls.Add(img2)

Dim rtn As RadTreeNode = DirectCast(container, RadTreeNode)

label1.Text = rtn.Text

AddHandler label1.DataBinding, AddressOf label1_DataBinding

container.Controls.Add(label1)

container.Controls.Add(lbl_space1)

container.Controls.Add(Link1)

container.Controls.Add(lbl_space2)

container.Controls.Add(Link2)

End Sub

TreeView

answered on 12 Feb 2013

3 answers

78 views

Problem with click on item record of a combobox

guys,

when i start the page web and click on combobox after the load the record into combo, if i click on item record i've this error:

"Unable to get the value of the 'get_Count' null object or undefined"

but the same procedure on another combobox does not generate this error.

the combobox that this error is this:

<telerik:RadComboBox ID="Categoria" Runat="server" DropDownWidth="350px" Height="175px"

EmptyMessage="Seleziona la tua categoria" EnableLoadOnDemand="True"

EnableVirtualScrolling="True" LoadingMessage="Caricamento..."

ShowMoreResultsBox="True" Filter="StartsWith"

MaxHeight="175px" Skin="Sunset" Width="350px" EnableItemCaching="True"

Font-Italic="True" Font-Names="Verdana" AutoPostBack="True" >

<WebServiceSettings Path="WebService.asmx" Method="GetCategoryNames" />

</telerik:RadComboBox>

this is code webservice:

Imports System.Web.Services

Imports System.Collections

Imports System.Collections.Generic

Imports System.Web.Script.Services

Imports System

Imports System.Data

Imports System.Web

Imports System.Data.SqlClient

Imports Telerik.Web.UI

<WebService([Namespace]:="http://tempuri.org/")> _

<WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _

<ScriptService()> _

Public Class TryWebService

Private Const ItemsCategoryPerRequest As Integer = 10

Private Const ItemsCityPerRequest As Integer = 10

<WebMethod()> _

Public Function GetCategoryNames(ByVal context As RadComboBoxContext) As RadComboBoxData

Dim data As DataTable = Getcategoria(context.Text)

Dim comboData As New RadComboBoxData()

Dim itemOffset As Integer = context.NumberOfItems

Dim endOffset As Integer = Math.Min(itemOffset + ItemsCategoryPerRequest, data.Rows.Count)

comboData.EndOfItems = endOffset = data.Rows.Count

Dim result As New List(Of RadComboBoxItemData)(endOffset - itemOffset)

For i As Integer = itemOffset To endOffset - 1

Dim itemData As New RadComboBoxItemData()

itemData.Text = data.Rows(i)("descrizione").ToString()

itemData.Value = data.Rows(i)("id").ToString()

result.Add(itemData)

Next

REM ottengo il messaggio dei record selezionati

comboData.Message = GetStatusMessage(endOffset, data.Rows.Count)

comboData.Items = result.ToArray()

Return comboData

End Function

Private Function GetStatusMessage(ByVal offset As Integer, ByVal total As Integer) As String

If total <= 0 Then

Return "Nessun dato"

End If

Return [String].Format("Record <b>1</b>-<b>{0}</b> di <b>{1}</b>", offset, total)

End Function

Private Function Getcategoria(ByVal text As String) As DataTable

REM SELECT * FROM Tab_categorie WHERE CONTAINS(descrizione, @text)

REM per indici full text

Dim conString = ConfigurationManager.ConnectionStrings("TrycontactString")

Dim strConnString As String = conString.ConnectionString

Using scope As New Transactions.TransactionScope

Using db As New SqlConnection(strConnString)

db.Open()

Using sqlcmd As New SqlCommand("select_category", db)

sqlcmd.CommandType = CommandType.StoredProcedure

sqlcmd.Parameters.AddWithValue("@desc", SqlDbType.VarChar).Value = text

Dim adapter As New SqlDataAdapter(sqlcmd)

Dim data As New DataTable()

adapter.Fill(data)

Return data

End Using

scope.Complete()

End Using

End Function

ComboBox

answered on 12 Feb 2013

3 answers

323 views

Javascript to control checkbox display on Rad button toggle change

Hello,

I have the following code on my aspx page

<table width="800px"><tr><td align="right">
        <telerik:RadButton ID="ToggleResponseView" OnCommand="OnToggleResponseView" AccessKey="1" runat="server" ButtonType="StandardButton" ToggleType="CustomToggle">
            <ToggleStates>
                <telerik:RadButtonToggleState Text="SVIEW" />
                <telerik:RadButtonToggleState Text="FRECORD" />
            </ToggleStates>
        </telerik:RadButton>
        </td>
        <td>
        <asp:CheckBox ID="chkisSummary" runat="server" AutoPostBack="true" OnClientToggleStateChanged="chkSummaryAll" OnCheckedChanged="ViewSummaryAll" Checked="false" Visible="true" text="Show All"/>
        </td></tr></table>

<script type="text/javascript">
    function chkSummaryAll(sender, args) {
        switch (args.get_currentToggleState().get_text()) {

            case "SVIEW":
                document.getElementById("chkisSummary").checked = false;
                alert("RadButton was clicked.");
                break;}
        }
</script>

I want to hide the check box 'chkisSummary' when the toggle button ttext is 'SVIEW'. However for somne reason the checkbox object is coming as Null and the javascript does not work.

Please suggest.

Button

answered on 12 Feb 2013

3 answers

118 views

RadUploadProgressArea/radprogressmanager Custom steps handling in RadWindow (while radUpload is in parent page)

Here below is my scenario (thats actually mimicing the radWindow approach mentioned in this URL :
Using RadUpload Progress area in RadWindow ) in http://www.telerik.com/support/kb/aspnet-ajax/window/using-radupload-progress-area-in-radwindow.aspx)
1) I've a RadUpload (say 'radupload1) control on page1.aspx
2) an asp.net button to indicate upload processing Button (say 'button1') on the same page i.e, page1.aspx
3) a radWindow on the page1.aspx to open page2.aspx (detailing in next point below)
3) I've second page viz., page2.aspx (to open in radWindow from page1.aspx) with radprogressmanager and radprogressarea
4) I'm good about client side things like, opening page2.aspx in radWindow as soon as I hit button1 (as explainied in URL provided), radWindow Closes once upload progress reaches 100%, radwindow closes on Cancel Click (for big files like 50 MB),
However I'm primarily stuck with questions on server side
5) I need to handle custom steps in radProgressArea1 that include file upload/stream to webserver by radUpload, security checks, file conversion to a known standard format, queuing the file to a different service, update the db by DAL layer, then I need to let the radWindow close by itself.
I'm wondering how to stream the file in page2.aspx that has been selected using radUpload on page1.aspx?
the above URL was good for client side operations, is there any code sample/URL that might be handling similar scenario Or Can you please assist on this. Thank you in advance.

Not providing the sample application since my application just followed what was suggested in above URL.

(The low priority thing for me, "nice to have resolution" is : the radWindow cancel taking looong time (appearing like stuck) to refresh page1.aspx)

PS: I should be using Telerik rad controls version 2008.2.723.20

Window

answered on 12 Feb 2013

1 answer

179 views

RadGrid + ClientSettings-EnableRowHoverStyle doesn't work after pos

Hi ALL,

I have a search page with a RadGrid.Visible=false; after user clicks on "Search" button, a partial postback controlled by RadAjaxManager sets grid.Visible=true, but configured client settings doesn't works. If i have a full postback or grid always shows up, that problem doesn't occurs.

<telerik:RadGrid runat="server" ID="grid" Visible="false"
                 OnNeedDataSource="grid_NeedDataSource" 
                 AllowPaging="true" AllowCustomPaging="true" PageSize="10">
    <ClientSettings ClientEvents-OnRowClick="consultarSolicitacao" 
                    EnableRowHoverStyle="true" />

    ...
</telerik:RadGrid>

I'm running 2012.3.1308.35 on Microsoft SharePoint 2010.

Thanks,

Grid

answered on 12 Feb 2013

6 answers

110 views

AjaxLoadingPanel: central little animation missing

Hello,

I have a RadAjaxLoadingPanel with a Telerik skin.

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server"

InitialDelayTime="0" MinDisplayTime=

"500"

Transparency="50" BackgroundPosition="Center" Skin="Telerik" />

When an update is done, I see the loading panel displayed over my control, but the little gif central animation is missing.

As you can see in the attached png file (in the red cercle I added), we can see the place of the animation (the position seems to be good), but there is no animation.

Should I have to define explicitly the gif file ? I thought it is done by chosing a skin.

Thanks by advance.

Damien

Ajax

answered on 12 Feb 2013

10 answers

358 views

Clearing previous image from Cache

Hi there

Does anyone know if there is a way to tell radCaptcha to start from scratch and ignore any existing images in the Cache? I'm thinking that during development, when I'm hitting lots of new page loads, that previous images in the cache might be causing a trouble I have with intermittent blank Captcha images.

Could anybody advise if this is a useful way forward?

Thanks

Captcha

answered on 12 Feb 2013

2 answers

154 views

Hidden autogenerated columns come back on postback

Hello,

First step: I have a generic page with a tree list control which is by default not visible.
On some conditions, I make it visible and bind it on a datatable, result of a stored procedure.
The columns are all autogenerated, so the stored procedure returns at least a column named DataKey and one named ParentDataKey (as named in the tree list declaration).

<telerik:RadTreeList runat="server" ID="RadTreeList1"

Skin="Telerik"

AutoGenerateColumns="true"

DataKeyNames="DataKey" ParentDataKeyNames="ParentDataKey"

AllowSorting="true"

ItemStyle-CssClass="RowStyle"

AlternatingItemStyle-CssClass="AlternatingRowStyle"

HeaderStyle-CssClass="HeaderStyle"

SelectedItemStyle-CssClass="SelectedRowStyle"

OnAutoGeneratedColumnCreated="RadTreeList1_OnColumnCreated"

Visible="false"

>

<ClientSettings>

<Scrolling AllowScroll="true" UseStaticHeaders="true" />

<Resizing AllowColumnResize="true" ResizeMode="NoScroll" />

</ClientSettings>

</telerik:RadTreeList>

This works correctly.

Second step: I don't want to display the identifers used as data key and as parent data key. So I add some code just after the binding to hide those column.

// Bind data with tree list display control

this.RadTreeList1.DataSource = myDataTable;

this.RadTreeList1.DataBind();

// Hide the DataKey and ParentDataKey columns

foreach (var c in this.RadTreeList1.AutoGeneratedColumns)

{

if (c.UniqueName.Equals("DataKey") || c.UniqueName.Equals("ParentDataKey"))

{

c.Display = false;

}

This works correctly.

Third step (the problem arrives):
The datatable, result of the stored procedure is saved in viewstate.
In the page_load method, on postback, the datatable is get from viewstate and the tree list is bind on it.

At this moment, I run the some code to hide the data key and parent data key columns, but it doesn't work.
I checked on debug, in page_load the display property is well set to false for the two columns (I also tried the visible property)
but the two columns are always visible.

Someone has an idea to hide those columns ?

Thanks by advance.

Regards,
Damien

TreeList

answered on 12 Feb 2013

1 answer

242 views

Hide column based on value

Hai

How can I hide the clientselect column in a certain row. i.e I want it hidden depending on the value of the column. How can I have it done. Please help me out.

thanx
RT

Grid

answered on 12 Feb 2013

1 answer

78 views

datakeyvalue on button click

Hi
How can I get the datakeyvalue of the selected row on an external button click.

Savyo

Grid

answered on 12 Feb 2013