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Contents tagged with Desgin-Time Dev

  • New Code Snippets for C#

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     * Application Code Snippets
        * Collections and Arrays Code Snippets
        * Connectivity Code Snippets
        * Crystal Reports Code Snippets
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        * Datatypes Code Snippets
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        * Math Code Snippets
        * Operating System Code Snippets
        * Security Code Snippets
        * Smart Devices Code Snippets
        * Windows Forms Code Snippets
        * XML Code Snippets
    To download code snippets for all the categories and retain the directory install structure of these snippets, click here.
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  • Add Action List to Control

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    ActionlistStep 1 : Build the control 

    using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace CustomDesignerActionsDemo
{
	[DefaultProperty( "Text" )]
	[ToolboxData( "<{0}:UserInfo runat=server>" )]
	[Designer( typeof( MyDesigner ) )]
	public class UserInfo : WebControl
	{
		#region Fields
		private int m_Age;
		protected TextBox txbAge;
		[CategoryAttribute( "Misc" )]
		[DescriptionAttribute( "My Age" )]
		public int Age
		{
			get
			{
				return m_Age;
			}
			set
			{
				m_Age = value;
			}
		}

		private string m_Email;
		protected TextBox txbEmail;
		[CategoryAttribute( "Misc" )]
		[DescriptionAttribute( "My Email" )]
		public string Email
		{
			get
			{
				return m_Email;
			}
			set
			{
				m_Email = value;
			}
		}

		private DateTime m_Date;
		protected TextBox txbDate;
		[CategoryAttribute( "Misc" )]
		[DescriptionAttribute( "My Date" )]
		public DateTime Date
		{
			get
			{
				return m_Date;
			}
			set
			{
				m_Date = value;
			}
		}

		private CityList m_City;
		protected TextBox txbCity;
		[CategoryAttribute( "General" )]
		[DescriptionAttribute( "My City" )]
		public CityList City
		{
			get
			{
				return m_City;
			}
			set
			{
				m_City = value;
			}
		}

		[Bindable( true )]
		[Category( "Appearance" )]
		[DefaultValue( "" )]
		[Localizable( true )]
		public string Text
		{
			get
			{
				String s = (String)ViewState[ "Text" ];
				return ( ( s == null ) ? String.Empty : s );
			}

			set
			{
				ViewState[ "Text" ] = value;
			}
		}
		#endregion	

		bool IsCreateChildControls = false;

		protected void SetValueInTextBox()
		{
			txbAge.Text = Age.ToString();
			txbCity.Text = City.ToString();
			txbDate.Text = Date.ToString();
			txbEmail.Text = Email;
		}
		protected override void EnsureChildControls()
		{
			if ( !IsCreateChildControls )
				CreateChildControls();

			base.EnsureChildControls();
		}
		protected override void CreateChildControls()
		{
			txbAge	 = new TextBox();
			txbCity  = new TextBox();
			txbDate  = new TextBox();
			txbEmail = new TextBox();
			base.CreateChildControls();

			IsCreateChildControls = true;
		}
		protected override void RenderContents( HtmlTextWriter output )
		{
			EnsureChildControls();
			SetValueInTextBox();
			output.Write( Text );

			output.Write( "
     City: " );
			txbCity.RenderControl( output );

			output.Write( "
     Age: " );
			txbAge.RenderControl( output );

			output.Write( "
     Date: " );
			txbDate.RenderControl( output );

			output.Write( "
     Email: " );
			txbEmail.RenderControl( output );
		}
	}
}
    Step 2 : Build the designer for the control 
    using System;
using System.Collections.Generic;
using System.Web.UI.Design;
using System.ComponentModel.Design;



namespace CustomDesignerActionsDemo
{
	public class MyDesigner : ControlDesigner
	{
		private DesignerActionListCollection al = null;

		public override DesignerActionListCollection ActionLists
		{
			get
			{
				if ( al == null )
				{
					al = new DesignerActionListCollection();
					al.AddRange( base.ActionLists );

					// Add a custom DesignerActionList
					al.Add( new MyDesignerActionList( this ) );
				}
				return al;

			}
		}
	}
}
    Step 3 : Build the action list for the designer 
    using System;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text;
using System.Windows.Forms;
using System.Reflection;

namespace CustomDesignerActionsDemo
{
	public class MyDesignerActionList : DesignerActionList
	{
		MyDesigner m_parent;

		public MyDesignerActionList( MyDesigner parent )
			: base(parent.Component)
		{
			m_parent = parent;
		}

		public override DesignerActionItemCollection GetSortedActionItems()
		{
			// Create list to store designer action items
			DesignerActionItemCollection actionItems = new DesignerActionItemCollection();

			// Add Appearance category header text
			actionItems.Add(new DesignerActionHeaderItem("Misc"));

			//// Add Appearance category descriptive label
			actionItems.Add(
			  new DesignerActionTextItem(
				"Properties that affect how the User looks." ,
				"Misc" ) );

			//// Add Email designer action property item
			actionItems.Add(
			  new DesignerActionPropertyItem(
				"Email" ,
				"Email" ,
				GetCategory( this.WebControl , "Email" ) ,
				GetDescription( this.WebControl , "Email" ) ) );

			actionItems.Add(
			  new DesignerActionPropertyItem(
				"Age" ,
				"Age" ,
				GetCategory( this.WebControl , "Age" ) ,
				GetDescription( this.WebControl , "Age" ) ) );

			actionItems.Add(
			  new DesignerActionPropertyItem(
				"Date" ,
				"Date" ,
				GetCategory( this.WebControl , "Date" ) ,
				GetDescription( this.WebControl , "Date" ) ) );

			actionItems.Add(
			  new DesignerActionPropertyItem(
				"City" ,
				"City" ,
				GetCategory( this.WebControl , "City" ) ,
				GetDescription( this.WebControl , "City" ) ) );

			actionItems.Add(
				new DesignerActionMethodItem(
				this ,
				"ClearValues" ,
				"Clear Values" ,
				true ) ); // for the Propeties wondows

			return actionItems;
		}

		#region Control Proxy Properties
		public string Email
		{
			get	{ return WebControl.Email; }
			set { SetProperty( "Email" , value ); }
		}
		public int Age
		{
			get{return WebControl.Age;}
			set{SetProperty( "Age" , value );}
		}
		public DateTime Date
		{
			get{return WebControl.Date;	}
			set{SetProperty( "Date" , value );	}
		}
		public CityList City
		{
			get{return WebControl.City;}
			set{SetProperty( "City" , value );}
		}
		public void ClearValues()
		{
			SetProperty( "Email" , string.Empty );
			SetProperty( "Age" , -1 );
			SetProperty( "City" , CityList.Tel_Aviv );
			SetProperty( "Date" , DateTime.Now );
		}

		#endregion


		private UserInfo WebControl
		{
			get
			{
				return (UserInfo)this.Component;
			}
		}		

		private string GetCategory( object source , string propertyName )
		{
			PropertyInfo property       = source.GetType().GetProperty( propertyName );
			CategoryAttribute attribute = (CategoryAttribute)property.GetCustomAttributes( typeof( CategoryAttribute ) , false )[ 0 ];
			if ( attribute == null )
				return null;
			return attribute.Category;
		}		
		private string GetDescription( object source , string propertyName )
		{
			PropertyInfo property = source.GetType().GetProperty( propertyName );
			DescriptionAttribute attribute = (DescriptionAttribute)property.GetCustomAttributes( typeof( DescriptionAttribute ) , false )[ 0 ];
			if ( attribute == null )
				return null;
			return attribute.Description;
		}

		// Helper method to safely set a component’s property
		private void SetProperty( string propertyName , object value )
		{
			// Get property
			PropertyDescriptor property = TypeDescriptor.GetProperties( this.WebControl )[ propertyName ];
			// Set property value
			property.SetValue( this.WebControl , value );
		}
	}

	public enum CityList
	{
		Tel_Aviv, Ramat_Gan
	}
}
    User info with Action List !!!!
Actionlist

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