
Hi,
I recently upgraded some controls on an aspx page from <asp:DropDownList> to <telerik:RadDropDownList>. I am running a .NET 4.5 website and am referencing the 2013.3.1114.45 version of the Telerik dlls.
When I test out the new DropDownLists using Internet Explorer 11 the dropdownlists expand as expected when I navigate to the page from a browser that is not on the computer hosting the website. However, when I use an older version of Internet Explorer (I have used IE10, and IE8) OR when I use Internet Explorer 11 on the computer that is hosting th website, the dropdownlists don't expand. When clicked, they produce a grey line under the dropdown list, but don't actually expand.
I am binding the dropdown lists in the codebehind as follows:
ddlDF.Items.Clear() ddlDF.DataValueField = "Value"ddlDF.DataSource = AppShared.GetDF() ddlDF.DataBind() 'The Signature of the GetDF function is Shared Function GetDF() As ListItem()
This seems like it must be a pretty basic problem as I'm sure others have used the DropDownList successfully with the 2013.3.1114.45 version of the Telerik dlls in older browsers and browsers on the host machine.
I am attaching screenshots of the dropdownlists when they produce the grey line under them instead of expanding.
Please let me know if you can reproduce this problem or have seen it before
Thomas

| #region private properties |
| private RadAjaxManager _radAjaxManager = null; |
| #endregion |
| protected override void OnInit(EventArgs e) |
| { |
| RadScriptManager scriptManager = new RadScriptManager(); |
| Controls.Add(scriptManager); |
| RadAjaxManager radAjaxManager = new RadAjaxManager(); |
| radAjaxManager.ID = "radAjaxManager"; |
| _radAjaxManager = radAjaxManager; |
| Controls.Add(radAjaxManager); |
| base.OnInit(e); |
| scriptManager.Scripts.Add(new ScriptReference("Elevate.UI.Scripts.Search.js", "Elevate")); |
| } |
| protected override void CreateChildControls() |
| { |
| RadAjaxLoadingPanel radAjaxLoadingPanel = new RadAjaxLoadingPanel(); |
| radAjaxLoadingPanel.ID = "ajaxLoadingPanel"; |
| radAjaxLoadingPanel.Skin = "Default"; |
| Controls.Add(radAjaxLoadingPanel); |
| /* Child Controls Creation */ |
| _radAjaxManager.AjaxSettings.AddAjaxSetting(button1, simplePanel, radAjaxLoadingPanel); |
| _radAjaxManager.AjaxSettings.AddAjaxSetting(linkButton1, simplePanel, radAjaxLoadingPanel); |
| _radAjaxManager.AjaxSettings.AddAjaxSetting(lbMLS, simplePanel, radAjaxLoadingPanel); |
| } |
<asp:Content ID="Content2" ContentPlaceHolderID="Content" runat="server"> <telerik:RadScriptManager runat="server" ID="RadScriptManager1" /> <div style="margin-bottom: 25px;"> <asp:Label ID="lblError" runat="server" EnableViewState="false" Style="color: Red; font-size: 16px;" /><br /> </div> <telerik:RadScriptBlock runat="server"> <script type="text/javascript"> function OnClientFilesUploaded(sender, args) { $find('<%= RadAjaxManager1.ClientID %>').ajaxRequest(); } </script> </telerik:RadScriptBlock> <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" EnablePageHeadUpdate="false"> <AjaxSettings> <telerik:AjaxSetting AjaxControlID="RadAjaxManager1"> <UpdatedControls> <telerik:AjaxUpdatedControl ControlID="RadImageEditor1" /> </UpdatedControls> </telerik:AjaxSetting> </AjaxSettings> </telerik:RadAjaxManager> <div id="dwndWrapper"> <telerik:RadAsyncUpload ID="AsyncUpload1" runat="server" OnClientFilesUploaded="OnClientFilesUploaded" OnFileUploaded="AsyncUpload1_FileUploaded" MaxFileSize="2097152" AllowedFileExtensions="jpg,png,gif,bmp" AutoAddFileInputs="false" Localization-Select="Upload Image" /> <asp:Label ID="Label1" Text="*Size limit: 2MB" runat="server" Style="font-size: 10px;"></asp:Label> </div> <telerik:RadImageEditor ID="RadImageEditor1" runat="server" OnImageLoading="RadImageEditor1_ImageLoading" Width="300px" Height="300px" ExternalDialogsPath="~/user" ToolsFile="~/user/tools.xml" OnImageSaving="RadImageEditor1_ImageSaving" OnClientCommandExecuting="modifyCommand" CanvasMode="No"> </telerik:RadImageEditor></asp:Content>
<asp:Content ID="Content3" ContentPlaceHolderID="Scripts" runat="server"> <telerik:RadCodeBlock ID="codeblock1" runat="server"> <script type="text/javascript"> function modifyCommand(imageEditor, args) { if (args.get_commandName() == "Crop") { waitForCommand(imageEditor, args.get_commandName(), function (widget) { var width = 149; var height = 170; var ratio = width / height; //stop the aspect ratio constraint //widget._constraintBtn.set_checked(false); //widget._setCropBoxRatio(null); //widget._sizeRatio = null; widget._setCropBoxRatio(ratio); widget._sizeRatio = ratio; widget.set_width(width); widget.set_height(height); widget._constraintBtn.set_enabled(false); widget._updateCropBoxFromControls(); }); } if (args.get_commandName() == "Save") {//doesn't work setTimeout(function () { $find("<%=RadImageEditor1.ClientID %>").applyChangesOnServer(); }, 300) ; var filename = imageEditor.getEditableImage();.//gives error about being unable to deserialize an empty string imageEditor.editImageOnServer("Crop", "Crop", "Crop", callbackFunction); imageEditor.saveImageOnServer(filename, true); imageEditor.setToggleState('Save', false); args.set_cancel(true); } } function callbackFunction(clientData, serverData) { var imgEditor = $find("<%=RadImageEditor1.ClientID %>"); imgEditor.getEditableImage()._finishReset(); }'always called, always loads original image Protected Sub RadImageEditor1_ImageLoading(sender As Object, args As ImageEditorLoadingEventArgs) ' Handle Uploaded images If Not [Object].Equals(Context.Cache.[Get](Session.SessionID + "UploadedFile"), Nothing) Then Using image As New EditableImage(DirectCast(Context.Cache.[Get](Session.SessionID + "UploadedFile"), MemoryStream)) args.Image = image.Clone() args.Cancel = True End Using End If End Sub'saves original image, not cropped one seen on screen Protected Sub RadImageEditor1_ImageSaving(sender As Object, args As Telerik.Web.UI.ImageEditorSavingEventArgs) 'Save the image to a custom location Dim fullPath As String = Server.MapPath("~/temp") Dim fileName As String = String.Format("test-{0}.jpg", DateTime.Now.ToString("yyyyMMdd-hhmmss")) fullPath = Path.Combine(fullPath, fileName) Dim img As Telerik.Web.UI.ImageEditor.EditableImage = args.Image Try img.Image.Save(fullPath) 'lblError.Text = "File Saved"; args.Argument = [String].Format("The image is saved under the name: <strong>{0}</strong>.", fileName) args.Cancel = True Catch ex As Exception args.Argument = ex.Message End Try End Sub'never called Protected Sub RadImageEditor1_ImageEditing(sender As Object, args As ImageEditorEditingEventArgs) args.Cancel = True End Sub