or
1 answer
410 views
Hello,
I am new to a team of developers and one of our tasks is maintaining an older website that uses Telerik Rad controls.
I would like to identify if we need to upgrade the existing controls for security patches etc.
What is best way to determine what version of controls we have and how to update them if necessary ?
Thanks
Rumen
Telerik team
answered
on
17 Aug 2021
1 answer
89 views
Hi,
I'm using the Image Editor and setting the image url during page load. The image size is 5mb and the dimensions are 6000x4000
We are also making use of CanvasMode="On" which is causing the image quality to drop quite a lot.
Is there any additional settings that will enable us not to lose quality if Canvas is enabled.
Kind Regards,
Rumen
Telerik team
answered
on
17 Aug 2021
1 answer
148 views
I have al ListView with an internal datasource defined as:
<telerik:RadListView ID="fileList" runat="server" ItemPlaceholderID="FileInfoPlaceHolder"
Width="100%" EnableEmbeddedSkins="false" AllowMultiFieldSorting="False" AllowPaging="true" PageSize="50">
<LayoutTemplate>
<div style="width: 100%">
<table>
<thead>
<tr>
<td class="lvtop">
<img alt="" src="assets/spacer.gif" height="1" width="400" /></td>
<td class="lvtop">
<img alt="" src="assets/spacer.gif" height="1" width="120" /></td>
<td class="lvtop lvtopr">
<img alt="" src="assets/spacer.gif" height="1" width="90" /></td>
</tr>
<tr>
<td class="lvhead" style="white-space: nowrap">Datei</td>
<td class="lvhead" style="white-space: nowrap">Aktion</td>
<td class="lvhead lvheadr" style="text-align: center; width: 80px; white-space: nowrap">Start</td>
</tr>
<tr>
<td class="lvhead">
<img alt="" src="assets/spacer.gif" height="1" width="400" /></td>
<td class="lvhead">
<img alt="" src="assets/spacer.gif" height="1" width="120" /></td>
<td class="lvhead lvheadr">
<img alt="" src="assets/spacer.gif" height="1" width="90" /></td>
</tr>
<tr>
<td colspan="3" style="text-align: center">
<telerik:RadDataPager ID="fileList_pagetop" runat="server" Culture="de-DE" SEOPagingQueryPageKey="" CssClass="lvhead" PagedControlID="artList" Skin="Outlook" PageSize="50"
BackColor="#F0F0F0" BorderColor="#D0D0D0" BorderStyle="Solid" BorderWidth="1px" Font-Names="Verdana, Arial, Sans serif" ForeColor="#0456a8" Font-Size="11px">
<Fields>
<telerik:RadDataPagerButtonField FieldType="FirstPrev" FirstButtonText="Erste" LastButtonText="Zurück" />
<telerik:RadDataPagerGoToPageField CurrentPageText="Seite" TotalPageText="von" SubmitButtonText="Zeigen" TextBoxWidth="40" />
<telerik:RadDataPagerButtonField FieldType="NextLast" NextButtonText="Nächste" LastButtonText="Letzte" />
<telerik:RadDataPagerPageSizeField PageSizeText="Dateien pro Seite:" PageSizeControlType="RadDropDownList" HorizontalPosition="RightFloat" PageSizes="10,20,50" />
</Fields>
</telerik:RadDataPager>
</td>
</tr>
</thead>
<tbody>
<tr id="FileInfoPlaceHolder" runat="server">
</tr>
</tbody>
<tfoot>
<tr>
<td colspan="3" style="text-align: center">
<telerik:RadDataPager ID="fileList_pagebottom" runat="server" Culture="de-DE" SEOPagingQueryPageKey="" CssClass="lvhead" PagedControlID="artList" Skin="Outlook" PageSize="50"
BackColor="#F0F0F0" BorderColor="#D0D0D0" BorderStyle="Solid" BorderWidth="1px" Font-Names="Verdana, Arial, Sans serif" ForeColor="#0456a8" Font-Size="11px">
<Fields>
<telerik:RadDataPagerButtonField FieldType="FirstPrev" FirstButtonText="Erste" LastButtonText="Zurück" />
<telerik:RadDataPagerGoToPageField CurrentPageText="Seite" TotalPageText="von" SubmitButtonText="Zeigen" TextBoxWidth="40" />
<telerik:RadDataPagerButtonField FieldType="NextLast" NextButtonText="Nächste" LastButtonText="Letzte" />
<telerik:RadDataPagerPageSizeField PageSizeText="Dateien pro Seite:" PageSizeControlType="RadDropDownList" HorizontalPosition="RightFloat" PageSizes="10,20,50" />
</Fields>
</telerik:RadDataPager>
</td>
</tr>
</tfoot>
</table>
</div>
</LayoutTemplate>
<ItemTemplate>
<tr>
<td class="lvcell">
<%# Container.DataItem %>
</td>
<td class="lvcell"></td>
<td class="lvcell lvcellr" style="text-align: justify; width: 90px; white-space: nowrap">
<asp:ImageButton ID="GotoButton" CommandName="Goto" CommandArgument="goto" runat="server" ImageUrl='~/assets/moveright.gif' Width="25" Height="25" ImageAlign="AbsMiddle" ToolTip="Gehe zur Produktanzeige der E-ISBN" />
</td>
</tr>
</ItemTemplate>
<EmptyDataTemplate>
<table style="width: 70%">
<tr>
<td class="labelcol"><i>Keine Dateien im Verzeichnis gefunden</i></td>
</tr>
</table>
</EmptyDataTemplate>
<ValidationSettings EnableModelValidation="False" EnableValidation="False" />
</telerik:RadListView>This is the code to set the datasource:
Protected Sub fileList_NeedDataSource(ByVal source As Object, ByVal e As Telerik.Web.UI.RadListViewNeedDataSourceEventArgs) Handles fileList.NeedDataSource
Dim filepath As String = appldata.getSYSTEMParam("ChapterUploadPath")
Dim files As New ArrayList(Directory.GetFiles(filepath, "*.xlsx").Length)
'Dim files As New List(Of String)
For Each f As String In Directory.GetFiles(filepath, "*.xlsx")
files.Add(Path.GetFileName(f))
Next
fileList.DataSource = files
fileDirectory.Text = "Alle Dateien im Verzeichnis " & filepath & ":"
End Sub
The effect is the same if I use list(of string) instead of arrayList.
The number of files read from the directory is 10. The ListView shows these then lines but indicates 1714 pages with 10 entries each. Paging is possible but only the page number changes, the list of 10 always shows in the same form.
How to reduce the listview to the real number of items present?
Doncho
Telerik team
answered
on
16 Aug 2021
1 answer
353 views
I'm using Version 2021.2.616.45 and attempting to detect Microsoft Edge. When using Edge in Windows 10, Telerik.Web.Browser.edge is false, but shows chrome is true. There are Telerik controls on the page, but I've also explicity added Telerik.Web.UI.Common.Core.js to the script manager. I get that Edge is a chromium browser, but I need to detect Edge.
Am I missing something?
Thanks,
Dave
Rumen
Telerik team
answered
on
13 Aug 2021
1 answer
256 views
I have a RadBinaryImage in a RadGrid template column and I'm trying to account for situations where the value is null. In reviewing some of the posts, I saw the following solution.
<telerik:RadBinaryImage runat="server" ID="RadBinaryImage2" DataValue='<%# Eval("vSignature") Is DBNull ? null Eval("vSignature") %>' AutoAdjustImageControlSize="false" Height="100px" Width="400px" ToolTip="Signature" AlternateText="Signature" />However, I get a design-time error stating that...
DBNull is a class type and cannot be used as an expression.
I have seen examples of this, but this does not work for me in Visual Studio 2017, Asp.Net 4.6.
Any help on this is greatly appreciated!
Attila Antal
Telerik team
answered
on
13 Aug 2021
1 answer
143 views
I have a project that uses the ASP.NET Ajax controls and I would like to upgrade to the newest version (2021). Is it just a matter of switching the DLLs and skins or are there breaking changes? After upgrading do I need to test every page with a Telerik control on it?
Thanks,
Tim
Vessy
Telerik team
answered
on
12 Aug 2021
1 answer
159 views
Hi Telerik team,
We found an issue for the editor, if we add html tag in the html mode and back to design mode, the tag got changed.
How to reproduce it:
1. go to RadEditor Demo page, paste following html to editor "<p><font size="4"><br>
Please join us for the Jefferson Virtual Academy Open Forum* on Zoom to get additional information:<br>
</font></p>"
2. switch to design mode, the html changes to
<p><span style="font-size: 18px;"><br />
Please join us for the Jefferson Virtual Academy Open Forum* on Zoom to get additional information:<br /></span></p>
Is there any way to fix it?
Thanks in advance,
Lan
Rumen
Telerik team
answered
on
11 Aug 2021
1 answer
78 views
Hello,
Just started to play with this radTabStrip control.
I have 6 tabs along the top.
I have a radMultipage control right after the tabctrl.
I have a grid on the first tab and a radcalendar & grid on the 2nd tab.
When I run I see the tabs but the controls on tab 1 & 2 do not show up.
i am probably doing some thing dumb but cant see it.
<td id="appTabCrtlr1c" colspan="12">
<telerik:RadTabStrip ID="RadTabStrip1" runat="server" ReorderTabsOnSelect="True" SelectedIndex="0">
<Tabs>
<telerik:RadTab runat="server" Selected="True" Text="Root RadTab1">
</telerik:RadTab>
<telerik:RadTab runat="server" Text="Root RadTab2">
</telerik:RadTab>
<telerik:RadTab runat="server" Text="Root RadTab3">
</telerik:RadTab>
<telerik:RadTab runat="server" Text="Root RadTab4">
</telerik:RadTab>
<telerik:RadTab runat="server" Text="Root RadTab5">
</telerik:RadTab>
<telerik:RadTab runat="server" Text="Root RadTab6">
</telerik:RadTab>
</Tabs>
</telerik:RadTabStrip>
<telerik:RadMultiPage ID="RadMultiPage1" runat="server">
<telerik:RadPageView runat="server">
<telerik:RadGrid ID="rGrid1" runat="server" ToolTip="I am Grid 1">
</telerik:RadGrid>
</telerik:RadPageView>
<telerik:RadPageView ID="RadPageView2" runat="server">
<telerik:RadCalendar ID="RadCalendar1" Runat="server">
</telerik:RadCalendar>
</telerik:RadPageView>
<telerik:RadPageView ID="RadPageView3" runat="server">
</telerik:RadPageView>
<telerik:RadPageView ID="RadPageView4" runat="server">
</telerik:RadPageView>
<telerik:RadPageView ID="RadPageView5" runat="server">
</telerik:RadPageView>
<telerik:RadPageView ID="RadPageView6" runat="server">
</telerik:RadPageView>
</telerik:RadMultiPage>
</td>
thanks
jackyjoy
1 answer
500 views
I am upgrading an old project to the latest UI for ASP.NET AJAX that is currently using bootstrap V3.
If I upgrade to the current version of Telerik what version of bootstrap should I use?
-George
Rumen
Telerik team
answered
on
09 Aug 2021
1 answer
152 views
How Can I Set Date Filter Like this in RAD GRID AJAX ( ASP.NET C#)
Please Ref . Below Image
Regards
Sarthkee
Attila Antal
Telerik team
answered
on
09 Aug 2021
