RadPanel, gradient fill. Not working?

[Czeshirecat]

Winforms, c#, version 2022.3.1109.40,

I know it must be me, but I'm testing gradient fill on a radpanel, but theres no change in appearance at either design or run time

Here's my extract from the designer file. GradientFill is set to linear which is the default.

private void InitializeComponent()
    {
      this.radPanel2 = new Telerik.WinControls.UI.RadPanel();
      ((System.ComponentModel.ISupportInitialize)(this.radPanel2)).BeginInit();
      this.SuspendLayout();
      //
      // radPanel2
      //
      this.radPanel2.Location = new System.Drawing.Point(112, 57);
      this.radPanel2.Name = "radPanel2";
      this.radPanel2.Size = new System.Drawing.Size(218, 107);
      this.radPanel2.TabIndex = 1;
      ((Telerik.WinControls.Primitives.FillPrimitive)(this.radPanel2.GetChildAt(0).GetChildAt(0))).BackColor2 = System.Drawing.Color.FromArgb(((int)(((byte)(0)))), ((int)(((byte)(198)))), ((int)(((byte)(241)))), ((int)(((byte)(79)))));
      ((Telerik.WinControls.Primitives.FillPrimitive)(this.radPanel2.GetChildAt(0).GetChildAt(0))).BackColor3 = System.Drawing.Color.FromArgb(((int)(((byte)(0)))), ((int)(((byte)(238)))), ((int)(((byte)(155)))), ((int)(((byte)(64)))));
      ((Telerik.WinControls.Primitives.FillPrimitive)(this.radPanel2.GetChildAt(0).GetChildAt(0))).BackColor4 = System.Drawing.Color.FromArgb(((int)(((byte)(0)))), ((int)(((byte)(74)))), ((int)(((byte)(228)))), ((int)(((byte)(243)))));
      ((Telerik.WinControls.Primitives.FillPrimitive)(this.radPanel2.GetChildAt(0).GetChildAt(0))).NumberOfColors = 4;
      ((Telerik.WinControls.Primitives.FillPrimitive)(this.radPanel2.GetChildAt(0).GetChildAt(0))).GradientStyle = Telerik.WinControls.GradientStyles.Linear;
      ((Telerik.WinControls.Primitives.FillPrimitive)(this.radPanel2.GetChildAt(0).GetChildAt(0))).PaintUsingParentShape = false;
      ((Telerik.WinControls.Primitives.FillPrimitive)(this.radPanel2.GetChildAt(0).GetChildAt(0))).BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(0)))), ((int)(((byte)(244)))), ((int)(((byte)(32)))), ((int)(((byte)(32)))));
      //
      // Form1
      //
      this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
      this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
      this.ClientSize = new System.Drawing.Size(800, 450);
      this.Controls.Add(this.radPanel2);
      this.Name = "Form1";
      this.Text = "Form1";
      ((System.ComponentModel.ISupportInitialize)(this.radPanel2)).EndInit();
      this.ResumeLayout(false);

    }

 

 

 

[Dess | Tech Support Engineer, Principal]

Hello, Claire,  

Following the provided code snippet, I have prepared a sample code snippet for your reference. The different colors are specified by using only the RGB values: 

        public RadForm1()
        {
            InitializeComponent();

            this.radPanel1.PanelElement.PanelFill.Visibility = ElementVisibility.Visible;
            this.radPanel1.PanelElement.PanelFill.GradientStyle = GradientStyles.Linear;
            this.radPanel1.PanelElement.PanelFill.NumberOfColors = 4;
            this.radPanel1.PanelElement.PanelFill.BackColor2 = Color.FromArgb(198,241,79);
            this.radPanel1.PanelElement.PanelFill.BackColor3 = Color.FromArgb(238, 155, 64);
            this.radPanel1.PanelElement.PanelFill.BackColor4 = Color.FromArgb(74,228, 243);
            this.radPanel1.PanelElement.PanelFill.BackColor =  Color.FromArgb(244,32,32);
        }

I hope this information helps. If you need any further assistance please don't hesitate to contact me. 

Regards,
Dess | Tech Support Engineer, Principal
Progress Telerik