ColorBuilder Klass

Definition

public ref class ColorBuilder sealed

public sealed class ColorBuilder

type ColorBuilder = class

Public NotInheritable Class ColorBuilder

Arv

Object

ColorBuilder

Exempel

// Create a parent control.
System::Windows::Forms::Control^ c = gcnew System::Windows::Forms::Control;
c->CreateControl();

// Launch the Color Builder using the specified control
// parent and an initial HTML format (S"RRGGBB") color String*.
System::Web::UI::Design::ColorBuilder::BuildColor( this->Component, c, "405599" );

// Create a parent control.
System.Windows.Forms.Control c = new System.Windows.Forms.Control();            
c.CreateControl();            

// Launch the Color Builder using the specified control 
// parent and an initial HTML format ("RRGGBB") color string.
System.Web.UI.Design.ColorBuilder.BuildColor(this.Component, c, "405599");

' Create a parent control.
Dim c As New System.Windows.Forms.Control()
c.CreateControl()

' Launch the Color Builder using the specified control 
' parent and an initial HTML format ("RRGGBB") color string.
System.Web.UI.Design.ColorBuilder.BuildColor(Me.Component, c, "405599")

// Example designer provides a designer verb menu command to launch the
// BuildColor method of the ColorBuilder.
public ref class ColorBuilderDesigner: public System::Web::UI::Design::UserControlDesigner
{
public:
   ColorBuilderDesigner(){}


   property System::ComponentModel::Design::DesignerVerbCollection^ Verbs 
   {

      // Provides a designer verb menu command for invoking the BuildColor
      // method of the ColorBuilder.
      [PermissionSetAttribute(SecurityAction::Demand, Name="FullTrust")]
      virtual System::ComponentModel::Design::DesignerVerbCollection^ get() override
      {
         DesignerVerbCollection^ dvc = gcnew DesignerVerbCollection;
         dvc->Add( gcnew DesignerVerb( "Launch Color Builder UI",gcnew EventHandler( this, &ColorBuilderDesigner::launchColorBuilder ) ) );
         return dvc;
      }

   }

private:

   // This method handles the S"Launch Color Builder UI" menu command.
   // Invokes the BuildColor method of the System::Web::UI::Design.ColorBuilder.
   void launchColorBuilder( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      
      // Create a parent control.
      System::Windows::Forms::Control^ c = gcnew System::Windows::Forms::Control;
      c->CreateControl();
      
      // Launch the Color Builder using the specified control
      // parent and an initial HTML format (S"RRGGBB") color String*.
      System::Web::UI::Design::ColorBuilder::BuildColor( this->Component, c, "405599" );
     
   }

};


// Example Web control displays the value of its text property.
// This control is associated with the ColorBuilderDesigner.

[DesignerAttribute(ColorBuilderDesigner::typeid,IDesigner::typeid)]
public ref class ColorBuilderControl: public System::Web::UI::WebControls::WebControl
{
private:
   String^ text;

public:

   property String^ Text 
   {

      [Bindable(true),
      Category("Appearance"),
      DefaultValue("")]
      String^ get()
      {
         return text;
      }

      void set( String^ value )
      {
         text = value;
      }

   }

protected:
   virtual void Render( HtmlTextWriter^ output ) override
   {
      output->Write( Text );
   }

};

// Example designer provides a designer verb menu command to launch the 
// BuildColor method of the ColorBuilder.
[System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.InheritanceDemand, Name="FullTrust")]
[System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name="FullTrust")]
public class ColorBuilderDesigner : System.Web.UI.Design.UserControlDesigner
{
    public ColorBuilderDesigner()
    {
    }

    // Provides a designer verb menu command for invoking the BuildColor 
    // method of the ColorBuilder.
    public override System.ComponentModel.Design.DesignerVerbCollection Verbs
    {
        get
        {
            DesignerVerbCollection dvc = new DesignerVerbCollection();                               
            dvc.Add( new DesignerVerb("Launch Color Builder UI", new EventHandler(this.launchColorBuilder)) ); 
            return dvc;
        }
    }

    // This method handles the "Launch Color Builder UI" menu command.
    // Invokes the BuildColor method of the System.Web.UI.Design.ColorBuilder.
    private void launchColorBuilder(object sender, EventArgs e)
    {
        // Create a parent control.
        System.Windows.Forms.Control c = new System.Windows.Forms.Control();            
        c.CreateControl();            
        
        // Launch the Color Builder using the specified control 
        // parent and an initial HTML format ("RRGGBB") color string.
        System.Web.UI.Design.ColorBuilder.BuildColor(this.Component, c, "405599");
    }
}

// Example Web control displays the value of its text property.
// This control is associated with the ColorBuilderDesigner.
[DesignerAttribute(typeof(ColorBuilderDesigner), typeof(IDesigner))]
public class ColorBuilderControl : System.Web.UI.WebControls.WebControl
{
    private string text;

    [Bindable(true),
    Category("Appearance"),
    DefaultValue("")]
    public string Text
    {
        get
        {
            return text;
        }

        set
        {
            text = value;
        }
    }

    protected override void Render(HtmlTextWriter output)
    {
        output.Write(Text);
    }
}

' Example designer provides a designer verb menu command to launch the 
' BuildColor method of the ColorBuilder.
<System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.InheritanceDemand, Name:="FullTrust" ), _
System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name:="FullTrust" )> _
Public Class ColorBuilderDesigner
    Inherits System.Web.UI.Design.UserControlDesigner

    Public Sub New()
    End Sub

    ' Provides a designer verb menu command for invoking the BuildColor 
    ' method of the ColorBuilder.
    Public Overrides ReadOnly Property Verbs() As System.ComponentModel.Design.DesignerVerbCollection
        Get
            Dim dvc As New DesignerVerbCollection()
            dvc.Add(New DesignerVerb("Launch Color Builder UI", New EventHandler(AddressOf Me.launchColorBuilder)))
            Return dvc
        End Get
    End Property

    ' This method handles the "Launch Color Builder UI" menu command.
    ' Invokes the BuildColor method of the System.Web.UI.Design.ColorBuilder.
    Private Sub launchColorBuilder(ByVal sender As Object, ByVal e As EventArgs)

        ' Create a parent control.
        Dim c As New System.Windows.Forms.Control()
        c.CreateControl()

        ' Launch the Color Builder using the specified control 
        ' parent and an initial HTML format ("RRGGBB") color string.
        System.Web.UI.Design.ColorBuilder.BuildColor(Me.Component, c, "405599")
      
    End Sub

End Class

' Example Web control displays the value of its text property.
' This control is associated with the ColorBuilderDesigner.
<DesignerAttribute(GetType(ColorBuilderDesigner), GetType(IDesigner))> _
Public Class ColorBuilderControl
    Inherits System.Web.UI.WebControls.WebControl
    Private [text_] As String

    <Bindable(True), Category("Appearance"), DefaultValue("")> _
    Public Property [Text]() As String
        Get
            Return [text_]
        End Get

        Set(ByVal Value As String)
            [text_] = Value
        End Set
    End Property

    Protected Overrides Sub Render(ByVal output As HtmlTextWriter)
        output.Write([Text])
    End Sub

End Class

Kommentarer

Metoden BuildColor startar ett användargränssnitt för att välja ett färgvärde.

Klassen ColorBuilder är inte avsedd att användas utanför designtidsmiljön. ColorBuilder IWebFormsBuilderUIServicekräver , som vanligtvis är tillgängligt i ett webbformulärprojekt vid designtillfället. Om du vill skapa HTML-färgsträngar kanske du vill implementera en metod som konverterar RGB-värdena för ett Color objekt till en HTML-kompatibel RRGGBB-formatsträng. Om du tänker använda en kontroll för att välja en färg eller konfigurera en färg kan du skapa ett användargränssnitt för detta, eller så kanske du vill använda en PropertyGrid kontroll som gör att du kan redigera Color egenskaper med standardvärdet ColorEditor som ger ett gränssnitt för färgval.