Hi All,
I’m facing a
performance problem with a new website that we have developed. After checking
the website with Gtmetrix I got bad results for the bellow
Leverage browser caching
Specify a cache validator
Defer parsing of JavaScript
I’m also attaching a Print Screen. I did a research over the web but I didn’t find a solution for my problem.
Do you have any Suggestion?

I'm using a dropdownlist with clientdatasource. How can I rebind it to refresh its content ?

Hi,
I have encounter a new bug with my export pdf.
It was working in 2016 R2 SP1. I was in 2016 R3 when we discovert it first and upgrading to SP1 and SP2 didn't fix it.
So i have a function in code behind that process a predefined telerik report and send it via 'Response'.
protected void ExportButton(object sender, EventArgs e) { // [...] HiddenCode [...] ReportProcessor reportProcessor = new ReportProcessor(); Telerik.Reporting.InstanceReportSource instanceReportSource = new Telerik.Reporting.InstanceReportSource(); instanceReportSource.ReportDocument = rpt; RenderingResult result = reportProcessor.RenderReport("PDF", instanceReportSource, null); string fileName = doc + "." + result.Extension; Response.Clear(); Response.ContentType = result.MimeType; Response.Cache.SetCacheability(HttpCacheability.Private); Response.Expires = -1; Response.Buffer = true; Response.AddHeader("Content-Disposition" , string.Format("{0};FileName=\"{1}\"" , "attachment" , fileName) ); Response.BinaryWrite(result.DocumentBytes); Response.End();}
If i have a RadButton outside of the grid calling this it works. When the button is in the CommandItemTemplate I get Nothing.
Or i get just some server lag.. sometimes a js unnamed error. and that on every Browser.
Hi,
I have a treeview that is built manually (no data-bind) using the metro theme. I'd like to set some node colours to red but neither of the two options below seem to have any effect?
ret.CssClass = "red";ret.BackColor = Color.Red; var node = new RadTreeNode(valuedata, textdata);
node.Checked = true;
rddtboxBuisness.EmbeddedTree.Nodes.Add(node);
When adding nodes to the control I cant default the checkbox to true...
am I doing anything wrong ?

I'm trying to add data/item to a listbox with custom ClientItemTemplate where I'm not using Text or Value but using other variables.
<telerik:RadListBox ID="AlarmListBox" runat="server" Height="100%" Width="100%" RenderMode="Lightweight" ClientDataSourceID="AlarmClientDataSource" OnClientSelectedIndexChanged="OnListItemSelected"> <EmptyMessageTemplate> <asp:Label runat="server" Text="No Alerts"></asp:Label> </EmptyMessageTemplate> <ClientItemTemplate> <div class="alarm"> <div class="alarm-wrapper"> <img src="#: src #" class="img-responsive alarm-list-image" style="float: left" ;/> <dl class="alarm-list-details"> <dt class="name">#= type #</dt> </dl> <div style="clear: left" /> </div> </div> </ClientItemTemplate></telerik:RadListBox>At first, I was using the listbox without a data source and I was able to add to the data by setting the attributes of a new listboxitem from the client-side.
Then I wanted to use a dummy REST service to test populating results.
I was able to populate the listbox using the clientdatasource using "select" only.
Now I want to be able to use both functionality, to populate the listbox from the REST service and manually. I tried to add directly to the listbox but it failed because their is no attributes and when I added items to clientdatasource using add() method but the new item did not appear in listbox.
Which method of adding an item is correct bearing in mind that I want to update the results to the REST service eventually and how can it be done.
I was trying to use a listbox with clientdatasource. But since the listbox cannot be rebinded yet, I decided to switch either grid or listview.
I was having some trouble selecting an item from listview so I'm using a grid with clientitemtemplate to fit by data into a single column.
What I want is to apply the ripple effect available when selecting an item in listbox to the grid,
so when I select a cell from the column it will have the ripple effect.
if you can please provide me with a solution.