ClearControls Method

Removes all child controls from the control container for the sheet.

Syntax

Visual Basic
C#

'Declaration
 
Public Overridable Sub ClearControls()

'Usage
 
Dim instance As SheetView
 
instance.ClearControls()

public virtual void ClearControls()

Example

This example clears all child controls from the sheet.

public class SpreadTextBox : TextBox, FarPoint.Win.Spread.DrawingSpace.IEmbeddedControlSupport {
    
    private FarPoint.Win.Spread.DrawingSpace.Moving moving = Moving.None;
    
    private FarPoint.Win.Spread.DrawingSpace.Sizing sizing = Sizing.None;
    
    private FarPoint.Win.Spread.DrawingSpace.ChildActivationPolicy activation = FarPoint.Win.Spread.DrawingSpace.ChildActivationPolicy.DoubleClick;
    
    public virtual FarPoint.Win.Spread.DrawingSpace.ChildActivationPolicy ActivationPolicy {
        get {
            return activation;
        }
        set {
            //  activation = Value
        }
    }
    
    public virtual FarPoint.Win.Spread.DrawingSpace.Moving CanMove {
        get {
            return moving;
        }
        set {
            moving = value;
        }
    }
    
    public virtual FarPoint.Win.Spread.DrawingSpace.Sizing CanSize {
        get {
            return sizing;
        }
        set {
            sizing = value;
        }
    }
    
    public void ControlPaint(Graphics g, Rectangle r, FarPoint.Win.Spread.Appearance appearance, object value, bool isSelected,
bool isLocked, float zoomFactor) {
        g.SetClip(r, CombineMode.Intersect);
        g.FillRectangle(new SolidBrush(this.BackColor), r);
        // g.FillRectangle(New SolidBrush(Me.BackColor), r.X - 120, r.Y - 120, r.Width, r.Height)
        g.DrawString(this.Text, Font, new SolidBrush(this.ForeColor), r.X, r.Y);
        this.TextChanged += new System.EventHandler(this.MeTextChanged);
    }
    
    public void MeTextChanged(object sender, EventArgs e) {
        this.BackColor = Color.Beige;
    }
}

SpreadTextBox tb = new SpreadTextBox();
tb.Name = "TB";
fpSpread1.ActiveSheet.AddControl(tb, 2, 2);

    
    private void Button1Click(object sender, System.EventArgs e) {
        fpSpread1.ActiveSheet.ClearControls();
    }

Visual Basic

Public Class SpreadTextBox
   Inherits TextBox
   Implements FarPoint.Win.Spread.DrawingSpace.IEmbeddedControlSupport

   Private moving As FarPoint.Win.Spread.DrawingSpace.Moving = Moving.None
   Private sizing As FarPoint.Win.Spread.DrawingSpace.Sizing = Sizing.None
   Private activation As FarPoint.Win.Spread.DrawingSpace.ChildActivationPolicy = FarPoint.Win.Spread.DrawingSpace.ChildActivationPolicy.DoubleClick

   Public Overridable Property ActivationPolicy() As FarPoint.Win.Spread.DrawingSpace.ChildActivationPolicy Implements FarPoint.Win.Spread.DrawingSpace.IEmbeddedControlSupport.ActivationPolicy
   Get
     Return activation
   End Get
   Set(ByVal Value As FarPoint.Win.Spread.DrawingSpace.ChildActivationPolicy)
     ' activation = Value
   End Set
   End Property

   Public Overridable Property CanMove() As FarPoint.Win.Spread.DrawingSpace.Moving Implements FarPoint.Win.Spread.DrawingSpace.IEmbeddedControlSupport.CanMove
       Get
           Return moving
       End Get
       Set(ByVal Value As FarPoint.Win.Spread.DrawingSpace.Moving)
          moving = Value
       End Set
   End Property

   Public Overridable Property CanSize() As FarPoint.Win.Spread.DrawingSpace.Sizing Implements FarPoint.Win.Spread.DrawingSpace.IEmbeddedControlSupport.CanSize
       Get
           Return sizing
       End Get
       Set(ByVal Value As FarPoint.Win.Spread.DrawingSpace.Sizing)
           sizing = Value
       End Set
   End Property


   Public Sub ControlPaint(ByVal g As Graphics, ByVal r As Rectangle, ByVal appearance As FarPoint.Win.Spread.Appearance,
ByVal value As Object, ByVal isSelected As Boolean, ByVal isLocked As Boolean, ByVal zoomFactor As Single) Implements
FarPoint.Win.Spread.DrawingSpace.IEmbeddedControlSupport.ControlPaint
    g.SetClip(r, CombineMode.Intersect)
    g.FillRectangle(New SolidBrush(Me.BackColor), r)
    'g.FillRectangle(New SolidBrush(Me.BackColor), r.X - 120, r.Y - 120,r.Width, r.Height)
    g.DrawString(Me.Text, Font, New SolidBrush(Me.ForeColor), r.X, r.Y) 
    AddHandler Me.TextChanged, AddressOf MeTextChanged

  End Sub

  Public Sub MeTextChanged(ByVal sender As Object, ByVal e As EventArgs)
    Me.BackColor = Color.Beige
  End Sub
End Class

Dim tb As New SpreadTextBox()
tb.Name = "TB"
FpSpread1.ActiveSheet.AddControl(tb, 2, 2)

Private Sub Button1Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click 
    FpSpread1.ActiveSheet.ClearControls()
End Sub

Requirements

Target Platforms: Windows 2000 Professional (SP4), Windows 2000 Server, Windows 2003 Server (SP1), Windows Server 2012 R2, Windows 2008, Windows XP (SP2), Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10

Reference

SheetView Class
SheetView Members

User-Task Documentation

Placing a Child Control on a Sheet