Property DesignerHost

Namespace

Alternet.FormDesigner.WinForms

Assembly

Alternet.FormDesigner.v9.dll

DesignerHost

Provides an interface for managing designer transactions and components.

[Browsable(false)]
public IDesignerHost DesignerHost { get; }

Property Value

IDesignerHost

Examples

Here is how to use a DesignerHost in the C# code:

using Alternet.FormDesigner.WinForms;

public partial class Form1 : Form
{
    private void Form1_Load(object sender, EventArgs e)
    {
        var formDesigner = new FormDesignerControl();
        formDesigner.AutoSaveToSource = false;
        formDesigner.Dock = System.Windows.Forms.DockStyle.Left;
        formDesigner.Parent = this;

        var toolboxControl = new ToolboxControl();
        toolboxControl.Parent = this;
        toolboxControl.Dock = System.Windows.Forms.DockStyle.Fill;
        toolboxControl.FormDesignerControl = formDesigner;

        var host = toolboxControl.DesignerHost;
        if (host != null)
        {
            var root = host.RootComponent as Form;
            MessageBox.Show(root?.Name);
        }
    }
}

Here is how to use a DesignerHost in the Visual Basic code:

Imports System
Imports Alternet.FormDesigner.WinForms

Partial Public Class Form1
    Inherits Form
    Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs)
        Dim formDesigner = New FormDesignerControl()
        formDesigner.AutoSaveToSource = False
        formDesigner.Dock = Windows.Forms.DockStyle.Left
        formDesigner.Parent = Me

        Dim toolboxControl = New ToolboxControl()
        toolboxControl.Parent = Me
        toolboxControl.Dock = Windows.Forms.DockStyle.Fill
        toolboxControl.FormDesignerControl = formDesigner

        Dim host = toolboxControl.DesignerHost
        If host IsNot Nothing Then
            Dim root = TryCast(host.RootComponent, Form)
            MessageBox.Show(root?.Name)
        End If
    End Sub
End Class

Remarks

This property is read-only and returns IDesignerHost if FormDesignerControl is set.