Use the code below and click the button to make the grid ReadOnly:
public TestForm()
{
InitializeComponent();
GridViewCheckBoxColumn checkBoxColumn = new GridViewCheckBoxColumn("checkbox");
checkBoxColumn.EnableHeaderCheckBox = true;
this.radGridView1.Columns.Add(checkBoxColumn);
this.radGridView1.Columns.Add("text");
this.Shown += TestForm_Shown;
}
private void TestForm_Shown(object sender, EventArgs e)
{
this.radGridView1.Columns["checkbox"].IsVisible = !this.radGridView1.Columns["checkbox"].IsVisible;
}
private void radButton1_Click(object sender, EventArgs e)
{
this.radGridView1.ReadOnly = !this.radGridView1.ReadOnly;
}
To reproduce:
public RadForm1()
{
InitializeComponent();
this.radGridView1.Columns.Add("Telerik");
this.radGridView1.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;
for (int i = 0; i < 10; i++)
{
this.radGridView1.Rows.Add(Guid.NewGuid().ToString());
}
}
private void radButton1_Click(object sender, EventArgs e)
{
RadPrintDocument document = new RadPrintDocument();
document.DefaultPageSettings.Landscape = false;
this.radGridView1.PrintPreview(document);
}Step 1: Open Print Settings dialog:
Step 2: Change the Orientation to Landscape:
Step 3: Click directly the Print button here. Once the default Print dialog is opened choose Preferences:
Step 4: You will notice that the Orientation is still Portrait instead of Landscape:
The caption text of the RibbonBarGroups disappears when switching themes runtime. The important part is that this behavior is observable when switching from the Office2010Blue theme to other themes. In this specific theme, the FillPrimitive holding the TextPrimitive (caption text) has the PositionOffset property set to 0,-1. This minus one pixel is messing up the layout during theme change.
What can be done as a workaround is to reset this property for every group. When the Office2010Blue theme is applied run this code:
private void radButton1_Click(object sender, EventArgs e)
{
Office2010BlueTheme theme = new Office2010BlueTheme();
ThemeResolutionService.ApplicationThemeName = "Office2010Blue";
foreach (var item in this.ribbonTab1.Items)
{
if (item is RadRibbonBarGroup)
{
var group = item as RadRibbonBarGroup;
group.Children[1].Children[0].PositionOffset = new SizeF(0, 0);
}
}
}
The following themes are affected: Office2019Dark, Office2019Gray, Office2019Light, CrystalDark:
Steps that lead to the undesired behavior:
1. Create a VB project with one of the templates:
2. Initially, there is no subscription to the CalendarUserControl.Load event:
3. After opening the designer, you are subscribing to the Load event by double-clicking the Load event in the Properties section:
Then, the generated event handler is underlined as in the above screenshot.
Hi Team,
The Travel Assistant demos are broken... it just hangs. This is also true for the Xamarin Demos, WPF demos and WinForms demos.
Here are some screenshots:
UI for Winforms demos
Telerik UI for Xamarin demos
I downloaded the ERP demo from here: https://www.telerik.com/support/code-library/erp-demo-application-for-winforms
After upgrading the projects to .NET 4.8 and running the application, the following exception is observed:
The full stack trace:
System.Data.Services.Client.DataServiceTransportException
HResult=0x80131509
Message=Unable to connect to the remote server
Source=Microsoft.Data.Services.Client
StackTrace:
at System.Data.Services.Client.HttpWebRequestMessage.GetResponse()
at System.Data.Services.Client.DataServiceContext.GetResponseHelper(ODataRequestMessageWrapper request, IAsyncResult asyncResult, Boolean handleWebException)
at System.Data.Services.Client.QueryResult.ExecuteQuery()
at System.Data.Services.Client.DataServiceRequest.GetQuerySetCount(DataServiceContext context)
at System.Data.Services.Client.DataServiceQueryProvider.ReturnSingleton[TElement](Expression expression)
at ERP.Client.PurchasesControl.Initialize() in C:\Users\dyordano\Downloads\009a20df-21b2-4e64-b129-eaf9e0a686f5_ERP-CS (1)\ERP.Client\CustomControls\Views\PurchasesControl.cs:line 48
at ERP.Client.BaseGridControl..ctor() in C:\Users\dyordano\Downloads\009a20df-21b2-4e64-b129-eaf9e0a686f5_ERP-CS (1)\ERP.Client\CustomControls\BaseGridControl.cs:line 49
at ERP.Client.PurchasesControl..ctor() in C:\Users\dyordano\Downloads\009a20df-21b2-4e64-b129-eaf9e0a686f5_ERP-CS (1)\ERP.Client\CustomControls\Views\PurchasesControl.cs:line 29
This exception was originally thrown at this call stack:
System.Net.Sockets.Socket.DoConnect(System.Net.EndPoint, System.Net.SocketAddress)
System.Net.ServicePoint.ConnectSocketInternal(bool, System.Net.Sockets.Socket, System.Net.Sockets.Socket, ref System.Net.Sockets.Socket, ref System.Net.IPAddress, System.Net.ServicePoint.ConnectSocketState, System.IAsyncResult, out System.Exception)
Inner Exception 1:
WebException: Unable to connect to the remote server
Inner Exception 2:
SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 65.52.19.99:80
This is the sample code snippet:
public RadForm1()
{
InitializeComponent();
this.radSpreadsheet1.SpreadsheetElement.ActiveWorksheetEditor.MouseClick += ActiveWorksheetEditor_MouseClick;
}
private void ActiveWorksheetEditor_MouseClick(object sender, Telerik.WinControls.Spreadsheet.UI.MouseButtonEventArgs e)
{
Console.WriteLine(DateTime.Now.ToLongTimeString());
var selection = this.radSpreadsheet1.SpreadsheetElement.ActiveWorksheetEditor.Selection.ActiveRange;
if (!selection.IsColumnRange)
{
}
}
At the moment when any of the properties are changed, e.g. the frozen panes, the UI is not notified and you have to export and import the file in order for the UI to pick them up.
Workaround: There are several workarounds:
1. Change the active worksheet and return to the old one
2. Export and import the document
3. Change the workbook of the RadSpreadsheet to a new one, and return the old one after that
4. Freeze the active worksheet using the ActiveWorksheetEditor.FreezePanes() method and freeze all others using the ViewState:
this.radSpreadsheet1.ActiveWorksheetEditor.FreezePanes(new CellIndex(10, 3));foreach (var worksheet in this.radSpreadsheet1.Workbook.Worksheets)
{
worksheet.ViewState.FreezePanes(5, 5);
}
It seems that this is a regression in R1 2023 SP1 after addressing this item:
Code to replicate the issue:
GridPrintStyle style = new GridPrintStyle();
style.PrintHierarchy = true;
style.HierarchyIndent = 0;
style.ChildViewPrintMode = ChildViewPrintMode.SelectViewToPrint;
this.radGridView1.PrintStyle = style;
this.radGridView1.PrintPreview();The attached gif file illustrates how the 20px hierarchy indent is returned after hitting the preview button.
When the CheckBox of a RadTreeNode is checked programmatically, the Unknown Action parameter needs to be passed to the NodeCheckedChanging/ed event.
Copy some content and paste it in the editor. The PasteOptions dialog remains opened and if the user clicks the PrintPreview button an error occurs:
Stack trace:
************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
at Telerik.WinControls.RichTextEditor.UI.PasteOptionsPopup.OnRichTextBoxLayoutUpdated(Object sender, EventArgs e)
at Telerik.WinControls.Layouts.ContextLayoutManager.fireLayoutUpdateEvent()
at Telerik.WinControls.Layouts.ContextLayoutManager.UpdateLayout()
at Telerik.WinForms.Documents.UI.DocumentPrintPresenter.Telerik.WinForms.RichTextEditor.IDocumentEditorPresenter.UpdateLayout()
at Telerik.WinForms.RichTextEditor.RadRichTextBox.<>c__DisplayClass653_0.<UpdateEditorLayout>b__0()
at Telerik.WinForms.RichTextEditor.RadRichTextBox.UpdateEditorLayout(Boolean focusCarret, Boolean updateCaretSize, Boolean async)
at Telerik.WinForms.RichTextEditor.RadRichTextBox.set_ActiveEditorPresenter(IDocumentEditorPresenter value)
at Telerik.WinForms.RichTextEditor.RadRichTextBox.Telerik.WinControls.UI.IPrintable.BeginPrint(RadPrintDocument sender, PrintEventArgs args)
at Telerik.WinControls.UI.RadPrintDocument.OnBeginPrint(PrintEventArgs e)
at System.Drawing.Printing.PrintDocument._OnBeginPrint(PrintEventArgs e)
at System.Drawing.Printing.PrintController.Print(PrintDocument document)
at System.Drawing.Printing.PrintDocument.Print()
at System.Windows.Forms.PrintPreviewControl.ComputePreview()
at System.Windows.Forms.PrintPreviewControl.CalculatePageInfo()
at System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbacks()
Add a RadTextBox on the form and open its smart tag:
Open the editor for the font and select the entire text:
Then, press Del:
When you try to close the editor, an error occurs:
However, the Font is already serialized as null:
As a result, the designer can't be opened any more:
