Questions on UI for ASP.NET AJAX Forum

5 answers

115 views

Beginner's question - RadComboBox value problems

I'm new to RadControls and I'm trying to rough out a simple page using a couple of RadComboBoxes, version 4.0.

First of all I note that there seems to be a great deal of chatter on this forum about bugs in the boxes.

However I wonder if my problem is related or whether I can't use these as ordinary combo boxes.

The code is extremely simple.
I bind it like this:
cb.DataTextField = "Desc";
cb.DataValueField = "Id";
cb.DataBind();

I then hit an ordinary Asp.Net button and try to get the selected values in the click event.
The data appears to have loaded correctly and the selected text is correct but I cannot get the correct selected value.
I've tried both SelectedValue and SelectedItem.Value. It's as if it's not setting at all.

ComboBox

answered on 23 Oct 2012

1 answer

91 views

Does the RAD Editor having option to save the content as Image?

Hi,

RAD Editor having option save the content as PDF and RDF..

Is there any option to save as a image?

Regards,
Saravanan M

Editor

answered on 23 Oct 2012

1 answer

101 views

Cannot seem to set a Default Value to combobox

The below code works on another page but the CountryCombo always says Afghanistan (alpha order) when in InsertMode. This is a radWindow page, hence the querystrings at the beginning. I've attached everything so the page lifecycle is clear. For some reason ItemCreated always fires twice, and when I step though, I see it Select the correct record, but when the form displays, it always says Afghanistan.

Private Sub Page_Init(sender As Object, e As System.EventArgs) Handles Me.Init

recipientOrganizationID = Request.QueryString.Get("ID")

DisplyMode = Request.QueryString.Get("show")

If recipientOrganizationID = Nothing AndAlso DisplyMode Is Nothing Then

RecipientOrganizationView.ShowInsertItem()

Else

For i = 0 To RecipientOrganizationView.PageSize - 1

RecipientOrganizationView.EditIndexes.Add(i)

Next

End If

End Sub

Private Sub RecipientOrganizationView_ItemCreated(sender As Object, e As Telerik.Web.UI.RadListViewItemEventArgs) Handles RecipientOrganizationView.ItemCreated

If TypeOf e.Item Is RadListViewEditableItem AndAlso e.Item.IsInEditMode Then

'if the item is in edit mode

Dim editItem As RadListViewEditableItem = DirectCast(e.Item, RadListViewEditableItem)

Dim CountryCombo As RadComboBox = DirectCast(editItem.FindControl("CountryCombo"), RadComboBox)

CountryCombo.AutoPostBack = True

Dim ProvinceCombo As RadComboBox = DirectCast(editItem.FindControl("ProvinceCombo"), RadComboBox)

ProvinceCombo.AutoPostBack = True

AddHandler CountryCombo.SelectedIndexChanged, AddressOf CountryCombo_SelectedIndexChanged

AddHandler ProvinceCombo.SelectedIndexChanged, AddressOf ProvinceCombo_SelectedIndexChanged

End If

If TypeOf e.Item Is RadListViewInsertItem Then

Dim editItem As RadListViewEditableItem = DirectCast(e.Item, RadListViewEditableItem)

Dim CountryCombo As RadComboBox = DirectCast(editItem.FindControl("CountryCombo"), RadComboBox)

LoadCountries(CountryCombo)

SetComboBoxDefault(43, CountryCombo, "Country")

'Dim ComboBoxItem As RadComboBoxItem = CountryCombo.FindItemByValue(43)

'ComboBoxItem.Selected = True

End If

End Sub

Private Sub RecipientOrganizationView_ItemDataBound(sender As Object, e As Telerik.Web.UI.RadListViewItemEventArgs) Handles RecipientOrganizationView.ItemDataBound

If TypeOf e.Item Is RadListViewEditableItem AndAlso e.Item.IsInEditMode Then

Dim item As RadListViewDataItem = TryCast(e.Item, RadListViewDataItem)

Dim CountryId As String = CType(DataBinder.Eval(item.DataItem, "CountryId"), String)

Dim ProvinceId As String = CType(DataBinder.Eval(item.DataItem, "ProvinceId"), String)

Dim CityId As String = CType(DataBinder.Eval(item.DataItem, "CityId"), String)

Dim CountryCombo As RadComboBox = CType(e.Item.FindControl("CountryCombo"), RadComboBox)

LoadCountries(CountryCombo)

If CountryId IsNot Nothing Then

Dim ComboBoxItem As RadComboBoxItem = CountryCombo.FindItemByValue(CountryId)

ComboBoxItem.Selected = True

End If

Dim ProvinceCombo As RadComboBox = CType(e.Item.FindControl("ProvinceCombo"), RadComboBox)

LoadProvinces(CountryId, ProvinceCombo)

If ProvinceId IsNot Nothing Then

Dim ComboBoxItem As RadComboBoxItem = ProvinceCombo.FindItemByValue(ProvinceId)

ComboBoxItem.Selected = True

End If

Dim CityCombo As RadComboBox = CType(e.Item.FindControl("CityCombo"), RadComboBox)

LoadCities(ProvinceId, CityCombo)

If CityId IsNot Nothing Then

Dim ComboBoxItem As RadComboBoxItem = CityCombo.FindItemByValue(CityId)

ComboBoxItem.Selected = True

End If

End Sub

Private Sub RecipientOrganizationView_NeedDataSource(sender As Object, e As Telerik.Web.UI.RadListViewNeedDataSourceEventArgs) Handles RecipientOrganizationView.NeedDataSource

Dim repository As New DataEntities

RecipientOrganizationView.DataSource = repository.RecipientOrganizations.Where(Function(x) x.RecipientOrganizationID = recipientOrganizationID).ToList

End Sub

Public Sub CountryCombo_SelectedIndexChanged(ByVal sender As Object, ByVal e As RadComboBoxSelectedIndexChangedEventArgs)

Dim btn = CType(sender, RadComboBox)

Dim item = CType(btn.NamingContainer, RadListViewEditableItem)

Dim Combo As RadComboBox = CType(item.FindControl("ProvinceCombo"), RadComboBox)

Combo.ClearSelection()

LoadProvinces(e.Value, Combo)

End Sub

Protected Sub LoadCountries(ByVal Control As RadComboBox)

Using context As New DataEntities

With Control

.DataValueField = "CountryId"

.DataTextField = "CountryName"

.DataSource = context.Countries.OrderBy(Function(x) x.CountryName).ToList

End With

Control.Width = Unit.Pixel(225)

Control.DataBind()

End Using

End Sub

''' <summary>

''' Checks to see of the Provice/State or Country combox should have Preselected data, otherwise Default Data is Presented

''' </summary>

''' <param name="FindItemByValue"></param>

''' <param name="Control"></param>

''' <param name="DisplayText"></param>

Public Sub SetComboBoxDefault(ByVal FindItemByValue As Integer, ByVal Control As RadComboBox, ByVal DisplayText As String)

Dim ComboBoxItem As RadComboBoxItem

If FindItemByValue > 0 Then

ComboBoxItem = Control.FindItemByValue(FindItemByValue)

If ComboBoxItem IsNot Nothing Then

ComboBoxItem.Selected = True

Else

Control.Items.Insert(0, New RadComboBoxItem("-- Please select a " & DisplayText & " --", String.Empty))

End If

Else

Control.Items.Insert(0, New RadComboBoxItem("-- Please select a " & DisplayText & " --", String.Empty))

End If

End Sub

ComboBox

answered on 23 Oct 2012

1 answer

50 views

Load on demand taking too long to expand

Hello,

I'm looking for some advice on where to start debugging an issue. It's a little weird, and we can't reproduce it in out environments, but our customer is reporting it, and it's becoming a big deal for them. So this is more of a consultation rather than a complaint or a bug report.. So this is the issue: they're using a TreeView-based control, and the tree view is configured to use Load on Demand with LazyLoad. The client response time is taking 3-5 seconds, and there's not that much data coming back. I know this isn't much information, but any pointers on where to start looking would be much appreciated.

Thank you!

Dasha.

TreeView

answered on 23 Oct 2012

1 answer

210 views

Save directly to file by export to excel feature of RadGrid

I posted this originally on this thread Save to File but haven't gotten any replies for a few days, so maybe that thread isn't being looked at, so I'm reposting here.

I'm using RadControls for ASP.NET AJAX Q2 2012 SP2

I'm using the described method to export to excel file, and it seems to work if I'm exporting a single grid. However, In my case I have three grids and I need to export all three to seperate excel files, then continue to do some additional processing after the exports are completed.

When I attempt to export mutliple excel files one after the other, none of the exports work. NO errors, NO nothing, see code excerpts below.

In addition, is there any way to suppress the open/save dialog when writing the exported file to disk, other than
Response.Redirect(Request.Url.ToString())

The issue seems to be with exporting multiple grids back to back.

I've also tried firing the Export Command from codebehind, the grids ItemCommand runs, but GridExporting doesn't.

Dim GCI As Telerik.Web.UI.GridCommandItem = CType(Me.rgSummary.MasterTableView.GetItems(Telerik.Web.UI.GridItemType.CommandItem)(0), Telerik.Web.UI.GridCommandItem)

GCI.FireCommandEvent("EXPORTTOEXCEL", String.Empty)

Any help would be appreciated.

Protected Sub btnExport_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExport.Click

Me.rgSummary.Rebind()

Me.rgSummary.ExportSettings.FileName = "Fantastic_Invoice_Summary_" + Format(Now, "MM_dd_yyyy_hh_mm_tt")

Me.rgSummary.ExportSettings.OpenInNewWindow = False

Me.rgSummary.MasterTableView.ExportToExcel()

'If I exit sub here, I'll get the summary excel file.

Me.rgDetail.Rebind()

Me.rgDetail.ExportSettings.FileName = "Fantastic_Invoice_Detail_" + Format(Now, "MM_dd_yyyy_hh_mm_tt")

Me.rgDetail.ExportSettings.OpenInNewWindow = False

Me.rgDetail.MasterTableView.ExportToExcel()

'I get neither file if I don't exit after the summary export

Me.rgCommission.Rebind()

If Me.rgCommission.Items.Count <> 0 Then

Me.rgCommission.ExportSettings.FileName = "Fantastic_Invoice_Commission_" + Format(Now, "MM_dd_yyyy_hh_mm_tt")

Me.rgCommission.ExportSettings.OpenInNewWindow = False

Me.rgCommission.MasterTableView.ExportToExcel()

End If

'Additional processing below

end sub

Private Sub rgSummary_GridExporting(sender As Object, e As Telerik.Web.UI.GridExportingArgs) Handles rgSummary.GridExporting

Dim fs As System.IO.FileStream

Dim FileName As String = Server.MapPath("~/Temp/") + Me.rgSummary.ExportSettings.FileName + "." + Me.rgSummary.ExportSettings.Excel.FileExtension

fs = System.IO.File.Create(FileName)

'Dim output As Byte() = Encoding.GetEncoding(1252).GetBytes(e.ExportOutput)

Dim output As Byte() = System.Text.Encoding.Default.GetBytes(e.ExportOutput)

fs.Write(output, 0, output.Length)

fs.Close()

End Sub

Grid

answered on 23 Oct 2012

1 answer

81 views

RadAjaxLoadingPanel now working

Hi,

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

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="btnSubmit">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="gvStaff" LoadingPanelID="RadAjaxLoadingPanel1" />

<telerik:AjaxUpdatedControl ControlID="panMessage" />

</UpdatedControls>

</telerik:AjaxSetting>

<telerik:AjaxSetting AjaxControlID="gvStaff">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="panMessage" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Style="position: absolute;

top: 200px; left: 600px;" IsSticky="True">

<div class="overlay" id="divProgress" style="position: absolute; visibility: visible;

vertical-align: middle; border-style: inset; border-color: black; background-color: White;

width: 200px; height: 100px; font-size: medium;">

<center>

<div style="margin-top: 30px;">

<asp:Image GenerateEmptyAlternateText="true" ID="imgLoader" runat="server" ImageUrl="~/images/ajax_loading.gif"

Style="margin-top: 7px;" />

<asp:Label ID="lblWait" runat="server" Text="Please wait..."></asp:Label>

</div>

</center>

</div>

</telerik:RadAjaxLoadingPanel>

<telerik:RadGrid ID="gvStaff" runat="server" AllowPaging="True" AutoGenerateColumns="False"

CellSpacing="0" GridLines="None" Width="100%" PageSize="20" Visible="False" AllowSorting="true">

<MasterTableView AllowMultiColumnSorting="true">

<CommandItemSettings ExportToPdfText="Export to PDF" />

<RowIndicatorColumn FilterControlAltText="Filter RowIndicator column" Visible="True">

</RowIndicatorColumn>

<ExpandCollapseColumn FilterControlAltText="Filter ExpandColumn column" Visible="True">

</ExpandCollapseColumn>

<Columns>

<telerik:GridButtonColumn Text="Select" CommandName="Select">

</telerik:GridButtonColumn>

<telerik:GridTemplateColumn FilterControlAltText="Filter TemplateColumn column" HeaderText="StaffID"

UniqueName="TemplateColumn" SortExpression="StaffID">

<ItemTemplate>

<asp:Label ID="staffID" runat="server" Text='<%# Bind("StaffID") %>'></asp:Label>

</ItemTemplate>

<ItemStyle HorizontalAlign="Justify" />

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn FilterControlAltText="Filter TemplateColumn column" HeaderText="Staff Name"

UniqueName="TemplateColumn" SortExpression="Name">

<ItemTemplate>

<asp:Label ID="Name" runat="server" Text='<%# Bind("Name") %>'></asp:Label>

</ItemTemplate>

<ItemStyle HorizontalAlign="Justify" />

</telerik:GridTemplateColumn>

</Columns>

<EditFormSettings>

<EditColumn FilterControlAltText="Filter EditCommandColumn column">

</EditColumn>

</EditFormSettings>

</MasterTableView>

<HeaderStyle HorizontalAlign="Justify" />

<FilterMenu EnableImageSprites="False">

</FilterMenu>

</telerik:RadGrid>

The radAjaxLoadingPanel not working when the search button is click and the radgrid will display out the result. The loading panel only working when click the submit button second time after the page load. Please help. Thanks.

Ajax

answered on 23 Oct 2012

1 answer

124 views

Editor DialogHandler issue

Hi,
The Rad editor's dialog box not displaying properly in any brower other than IE.
Can anybody help me on this issue.Observe attached image.

My config setting are,

<httpHandlers>
      <remove path="*.asmx" verb="*" />
      <add path="Telerik.Web.UI.WebResource.axd" verb="*" type="Telerik.Web.UI.WebResource" validate="false" />
      <add path="Telerik.Web.UI.DialogHandler.aspx" verb="*" type="Telerik.Web.UI.DialogHandler" validate="false" />
      <add path="Telerik.Web.UI.SpellCheckHandler.axd" verb="*" type="Telerik.Web.UI.SpellCheckHandler" validate="false" />
      <add path="*.asmx" verb="*" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false"/>
</httpHandlers>

<handlers>
      <remove name="WebServiceHandlerFactory-Integrated" />
      <remove name="ScriptHandlerFactory" />
      <remove name="ScriptHandlerFactoryAppServices" />
      <remove name="ScriptResource" />
      <remove name="ChartImageHandler" />
      <add name="Telerik_Web_UI_WebResource_axd" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" />
      <add name="Telerik_Web_UI_DialogHandler_aspx" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.DialogHandler.aspx" type="Telerik.Web.UI.DialogHandler" />
      <add name="Telerik_Web_UI_SpellCheckHandler_axd" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" />
      <add name="ChartImageHandler" preCondition="integratedMode" verb="GET,HEAD,POST" path="ChartImg.axd" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      <add name="ChartImage_axd" verb="*" preCondition="integratedMode" path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler" />
    </handlers>

Regards,
Anwar

Editor

answered on 23 Oct 2012

7 answers

1.1K+ views

CssClass in RadGrid Properties does not work

Setting CssClass in several RadGrid Properties does not work
When I set CssClasss to "hdr1" I get a bogus string and the class does not work.

<div id="RadGrid1" class="RadGrid_Default hdr1">

What is adding the RadGrid_Default?
How do I get rid of it?

How do I set custom CssClass in various properties?
--- in the Grid itself, in MasterTableView, in HeaderStyle

Grid

answered on 23 Oct 2012

1 answer

228 views

RadAjaxLoadingPanel problem on Button Click to show a RadGrid

Hi Friends,

I want to display ajax loading...page, when i click button to show RadGrid. Its not working when i click a button, page was going to serverside and showed the RadGrid o/p. Now again click a button its showing the ajax loading.. My question is why its not showing first time button click. Can you please suggest me the solution.

My Code is Below: (I am using Master Page)
==================
<%@ Page Title="" Language="C#" MasterPageFile="~/Complaint.Master" AutoEventWireup="true" CodeBehind="Products.aspx.cs" Inherits="NewProducts.Products.Products" %>

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

<asp:Content ID="Content2" ContentPlaceHolderID="cph_Main" runat="server">

<asp:Label ID="lblPageError" Text="" runat="server" ForeColor="Red"></asp:Label>

<tr>

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

<telerik:AjaxSetting AjaxControlID="btnSearch">

<telerik:AjaxUpdatedControl ControlID="customerInformation" LoadingPanelID="RadAjaxLoadingPanel1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

</td>

</tr>

<tr>

<td >Order ID</td>

<td>

<telerik:RadTextBox ID="tbOrderID" runat="server" ToolTip="Enter Order ID">

</telerik:RadTextBox>

</td>

<td >

<asp:Button ID="btnSearch" runat="server" Text="Search" OnClick="btnSearch_Click" ToolTip="Click here to Search Rolls Information" /></td>

</tr>

<tr>

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" InitialDelayTime="0" MinDisplayTime="1000" Transparency="25" IsSticky="true">

<asp:Image ID="imgRadAjaxLoadingPanel1" runat="server" ImageUrl="~/Images/loading.gif" />

</telerik:RadAjaxLoadingPanel>

</td>

</tr>

<tr>

<td>

<asp:UpdatePanel ID="updPnlcustomerInformation" runat="server">

<telerik:RadPanelBar runat="server" ID="rpbRollsInformation" Skin="Metro" Width="100%">

<Items>

<telerik:RadPanelItem Value="RollsInformation" Selected="true" Text="Roll Information" runat="server" Expanded="true">

<tr>

<td>

<telerik:RadGrid ID="customerInformation" runat="server" AutoGenerateColumns="false" CellPadding="0" CellSpacing="0" GridLines="None" CssClass="RadGrid_CBGrid" Skin="Metro" HorizontalAlign="Left" FooterStyle-BorderColor="Black" AutoGenerateHierarchy="true" OnItemDataBound="customerInformation_ItemDataBound">

<uc:Comments ID="orders" runat="server" />

</NestedViewTemplate>

<telerik:GridTemplateColumn DataField="ID" FilterControlAltText="Filter ID column" HeaderText="ID" UniqueName="ID">

<asp:Label ID="lblID" runat="server" Text='<%# Bind("ID") %>'></asp:Label>

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn DataField="Date" FilterControlAltText="Filter Date column" HeaderText="Date" UniqueName="Date">

<asp:Label ID="lblDate" runat="server" Text='<%# Bind("Date") %>'></asp:Label>

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn DataField="order_id" FilterControlAltText="Filter order_id column" HeaderText="Order" UniqueName="order_id">

<asp:Label ID="lblorder_id" runat="server" Text='<%# Bind("order_id") %>'></asp:Label>

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn HeaderText="Product Type">

<telerik:RadComboBox ID="cboProduct" runat="server" AutoPostBack="true" OnSelectedIndexChanged="cboProduct_OnSelectedIndexChanged">

</telerik:RadComboBox>

<asp:Label ID="lblProduct" Visible="false" runat="server" Text='<%# Bind("product") %>'></asp:Label>

<asp:CompareValidator runat="server" ID="CompaValcboProduct" ValueToCompare="-Select-" Operator="NotEqual" ControlToValidate="cboProduct" ErrorMessage="Select ProductType" Text="*" ValidationGroup="Save" ForeColor="Red" Visible="false" />

<telerik:RadTextBox ID="tbProduct" runat="server" Visible="false">

</telerik:RadTextBox>

<asp:RequiredFieldValidator ID="rfvtbProduct" runat="server" ControlToValidate="tbProduct" ValidationGroup="Save" ErrorMessage="Enter Procuct Type" Text="*" ForeColor="Red" Enabled="false"></asp:RequiredFieldValidator>

</ItemTemplate>

</telerik:GridTemplateColumn>

</Columns>

</MasterTableView>

<%--<Scrolling AllowScroll="true" SaveScrollPosition="true" UseStaticHeaders="true" />--%>

</ClientSettings>

</telerik:RadGrid>

</td>

</tr>

</table>

</div>

</ContentTemplate>

</telerik:RadPanelItem>

</Items>

</telerik:RadPanelBar>

</ContentTemplate>

</asp:UpdatePanel>

</td>

</tr>

</table>

</div>

</asp:Content>

Thanks,
NTR

General Discussions

answered on 23 Oct 2012

1 answer

76 views

Issue with RadCompression and Http Post

Hi Guys,

Recently I have applied RadCompression on my app and and Everything is Working fine Except one functionality.

I have a site which is not using rad compression and From there I'm posting some data to my main Site using HTTP Post. On my main site my page perform some validations by doing 2-3 redirections and after that loads final page.

Without Radcompression this functionality is working fine. With Radcompression when I uses a Get(Direct Assign Iframe Src) it is working fine. But with Http Post it is giving me following Error.

"The state information is invalid for this page and might be corrupted."

Can someone help me with this since I'm stucked with this issue?

General Discussions

answered on 23 Oct 2012