IDesignerOptionService Interface

Provides access to the designer options located on the Tools menu under the Options command in the Visual Studio development environment.

Namespace:  System.ComponentModel.Design
Assembly:  System (in System.dll)

public interface IDesignerOptionService

The IDesignerOptionService type exposes the following members.

  NameDescription
Public methodGetOptionValueGets the value of the specified Windows Forms Designer option.
Public methodSetOptionValueSets the value of the specified Windows Forms Designer option.
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IDesignerOptionService provides an interface that can be used to retrieve and update the values of the Windows Forms Designer options, which are listed within the dialog displayed by the Options command of the Tools menu of the Visual Studio development environment. The GetOptionValue method retrieves the value of a specified option. The SetOptionValue method sets a specified value for a specified option.

The following code example demonstrates accessing the IDesignerOptionService to display the current values of the standard options.

using System;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
using System.Windows.Forms.Design;

namespace IDesignerOptionServiceExample
{
    // This control demonstrates retrieving the standard  
    // designer option service values in design mode. 
    public class IDesignerOptionServiceControl : System.Windows.Forms.UserControl
    {		
        private IDesignerOptionService designerOptionService;

        public IDesignerOptionServiceControl()
        {
            this.BackColor = Color.Beige;
                    this.Size = new Size(404, 135);
        }

        public override System.ComponentModel.ISite Site
        {
            get
            {
                return base.Site;
            }
            set
            {
                base.Site = value;

                // If siting component, attempt to obtain an IDesignerOptionService. 
                if( base.Site != null )                            
                    designerOptionService = (IDesignerOptionService)this.GetService(typeof(IDesignerOptionService));                                   
            }
        }

        // Displays control information and current IDesignerOptionService  
        // values, if available. 
        protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
        {
            e.Graphics.DrawString("IDesignerOptionServiceControl", new Font("Arial", 9), new SolidBrush(Color.Blue), 4, 4);
            if( this.DesignMode )
                e.Graphics.DrawString("Currently in design mode", new Font("Arial", 8), new SolidBrush(Color.Black), 4, 18);
            else
                e.Graphics.DrawString("Not in design mode. Cannot access IDesignerOptionService.", new Font("Arial", 8), new SolidBrush(Color.Red), 4, 18);

            if( base.Site != null && designerOptionService != null )
            {
                e.Graphics.DrawString("IDesignerOptionService provides access to the table of option values listed when", new Font("Arial", 8), new SolidBrush(Color.Black), 4, 38);
                e.Graphics.DrawString("the Windows Forms Designer\\General tab of the Tools\\Options menu is selected.", new Font("Arial", 8), new SolidBrush(Color.Black), 4, 50);                

                e.Graphics.DrawString("Table of standard value names and current values", new Font("Arial", 8), new SolidBrush(Color.Red), 4, 76);

                // Displays a table of the standard value names and current values. 
                int ypos = 90;

                // Obtains and shows the size of the standard design-mode grid square.
                Size size = (Size)designerOptionService.GetOptionValue("WindowsFormsDesigner\\General", "GridSize");
                e.Graphics.DrawString("GridSize", new Font("Arial", 8), new SolidBrush(Color.Black), 4, ypos);
                e.Graphics.DrawString(size.ToString(), new Font("Arial", 8), new SolidBrush(Color.Black), 100, ypos);
                ypos+=12;

                // Obtains and shows whether the design mode surface grid is enabled. 
                bool showGrid = (bool)designerOptionService.GetOptionValue("WindowsFormsDesigner\\General", "ShowGrid");
                e.Graphics.DrawString("ShowGrid", new Font("Arial", 8), new SolidBrush(Color.Black), 4, ypos);
                e.Graphics.DrawString(showGrid.ToString(), new Font("Arial", 8), new SolidBrush(Color.Black), 100, ypos);
                ypos+=12;

                // Obtains and shows whether components should be aligned with the surface grid. 
                bool snapToGrid = (bool)designerOptionService.GetOptionValue("WindowsFormsDesigner\\General", "SnapToGrid");
                e.Graphics.DrawString("SnapToGrid", new Font("Arial", 8), new SolidBrush(Color.Black), 4, ypos);
                e.Graphics.DrawString(snapToGrid.ToString(), new Font("Arial", 8), new SolidBrush(Color.Black), 100, ypos);                
            }
        }
    }
}

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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