With every new release, we recompile the libraries so that we can set the application name to meet licensing requirements.

However, with 2023 R3, the compilation is failing due to four instances of a call to FunctionBase.LinearInterpolate in BrushRenderer.cs which leads to the following compilation error:

Fixed\UI\BrushRenderer.cs(233,50): error CS0117: 'Telerik.Windows.Documents.Fixed.Model.Common.Functions.FunctionBase' does not contain a definition for 'LinearInterpolate'

The LinearInterpolate method is definitely not defined in FunctionBase, would appreciate any available help on this.

Hi Telerik,

I know there is a way to print the Gantt View with data hidden behind the horizontal scrollbar, which I have worked 5 years ago.

But I'm not sure that can be done in RadGridView.

I mean I'm having 10 columns in RadGridView, in which 2 columns are scrolled inside horizontal scroll bar.

I want to print the rows in the visible area with all the 10 columns. Please help me if there is any way to achieve this.

Thanks and Regards,

Muhammad Azhar Shah

When using version 2023.2.718 targeting .NET 6.0 on VS 2022, I tried to create a RadCartesianChart as described here: https://docs.telerik.com/devtools/wpf/controls/radchartview/multiple-chart-series

The PointSeries and BarSeries are recognized as expected, but LineSeries generates errors that make the designer complain about invalid markup:

The program builds and runs fine.

Anyone have a clue as to what is happening here?

For a home project I'm working on, I have paid upto version R3 2021 SP2.  Will this version work with Visual Studio 2022 and can I use .NET 7 with this version?

If not, what is the most current version of Telerik UI WPF that does support Visual Studio 2022?

What is the most current version of Telerik UI WPF that supports .NET 7?

Thanks, Rob.

Hi,

I attached a little wpf application that open a pdf file (to put in building folder ) with an image inside.

I tested it in 4 machine (2 w11, 2 w10): I can see the image in 2 machine (1 w11, 1 w10), and I can't in the others (1 w11, 1 w10), what could be the problem?

Thank you

Luigi

Hello,

When using the ScheduleView in month view, I find that the visibility of the expand button is fixed to the minimum height of the day slot, i.e., it appears when the number of appointments in a day exceed those that are visible at the minimum height regardless of whether there is still available room (for example, when the window is maximized).  How can this be corrected so that it only appears when there are appointments out of view?

Hello,

I'm building a gauge specifying custom ticks. The gauge is pretty narrow in range, and the ticks fall on double values, like 2.3421 and 4.5214.

It looks like the ticks are getting rounded to int, but I want them to maybe apply a string format to them to display 2 decimal values, how can I do this?

Hi guys,

For my RadSpreadSheet component, I have implemented some custom functions using the FunctionWithArguments implementation. I have a BaseCustomFunction custom class which inherits from the FunctionWithArguments telerik class, and for example, I have a Q1QFunction class which inherits from my BaseCustomFunction, as below:

Imports MAAObject.AerodynamicObject
Imports Telerik.Windows.Documents.Spreadsheet.Expressions
Imports Telerik.Windows.Documents.Spreadsheet.Expressions.Functions

Namespace Aerodynamic.Calculator

    Public Class Q1QFunction
        Inherits BaseCustomFunction

#Region "Properties"

        Public Overrides ReadOnly Property Type As ECustomFunction
            Get
                Return ECustomFunction.Q1_Q
            End Get
        End Property

#End Region

        Public Sub New(name As String, description As String)
            MyBase.New(name, description)
        End Sub

#Region "Methods"

        Protected Overrides Function GetFunctionInfos() As FunctionInfo
            Dim requiredArguments As IEnumerable(Of ArgumentInfo) = New ArgumentInfo() {
                New ArgumentInfo("Altitude_ft", "The value of the Altitude, in ft.", ArgumentType.Number),
                New ArgumentInfo("Mach", "The value of the Mach.", ArgumentType.Number),
                New ArgumentInfo("ISA_ºC", "The value of the ISA, in Celsus degrees.", ArgumentType.Number),
                New ArgumentInfo("Mach_Option", "The value of the Mach Option.", ArgumentType.Text),
                New ArgumentInfo("Cpressure", "The value of the Cpressure.", ArgumentType.Number),
                New ArgumentInfo("Mach1_Known", "The value of the known Mach1.", ArgumentType.Number)
            }

            Dim optionalArguments As IEnumerable(Of ArgumentInfo) = New ArgumentInfo() {}

            Return New FunctionInfo(Me.Name, FunctionCategory.MathTrig, Me.Description, requiredArguments, optionalArguments, 0, True)
        End Function

        Protected Overrides Function EvaluateOverride(context As FunctionEvaluationContext(Of Object)) As RadExpression
            If context.Arguments.Length <> Me.FunctionInfo.RequiredArgumentsCount Then Return Nothing

            Dim altitude As Decimal
            If Not Decimal.TryParse(context.Arguments(0), altitude) Then Return Nothing 'tester le return nothing

            Dim mach As Decimal
            If Not Decimal.TryParse(context.Arguments(1), mach) Then Return Nothing

            Dim isa As Decimal
            If Not Decimal.TryParse(context.Arguments(2), isa) Then Return Nothing

            Dim machOption As String = CStr(context.Arguments(3))
            If Not {"YES", "NO"}.Contains(machOption) Then
                Throw New ExpressionException("Mach_Option parameter must be ""YES"" or ""NO""")
            End If

            Dim cPressure As Decimal
            If Not Decimal.TryParse(context.Arguments(4), cPressure) Then Return Nothing

            Dim mach1Known As Decimal
            If Not Decimal.TryParse(context.Arguments(5), mach1Known) Then Return Nothing

            Return New NumberExpression(AerodynamicCalculator.Q1_Q(altitude, mach, isa, machOption, cPressure, mach1Known))
        End Function

#End Region

    End Class

End Namespace

> I have a question about the machOption parameter inside the EvaluateOverride method: is it possible to raise an error if the parameter hasn't the desired value? For example I want to return #VALUE or #REF or another error message, and avoid the calculation of the formula if something provided is wrong.

I tried to use the ErrorExpression or RadExpression base classes, but I can't build them because no New Constructor method is available.

Do you know how I can do that?

Thank you!

Valentin M.

Hello,

how to dectect if upload is completed?
for me i will use the cloud upload control in diffenent windows to update diffenet objects. 

actually i found no way to find out if the upload control upload ist completed?

kind regards