FlowDirection 枚举

定义

命名空间:

System.Windows.Forms

程序集:

System.Windows.Forms.dll

Source:

FlowDirection.cs

定义指定连续用户界面 （UI） 元素放置在线性布局容器中的方向的常量。

public enum class FlowDirection

public enum FlowDirection

type FlowDirection = 

Public Enum FlowDirection

继承

Object

ValueType

Enum

FlowDirection

字段

名称	值	说明
LeftToRight	0	元素从设计图面的左边缘向右流动。
TopDown	1	元素从设计图面的顶部流向底部。
RightToLeft	2	元素从设计图面的右边缘流向左。
BottomUp	3	元素从设计图面底部流向顶部。

示例

以下示例演示如何在控件上FlowLayoutPanel设置FlowDirection属性。 此代码示例是为控件提供的大型示例的 FlowLayoutPanel 一部分。

private:
    void flowTopDownBtn_CheckedChanged(System::Object^ sender,
        System::EventArgs^ e)
    {
        this->flowLayoutPanel1->FlowDirection = FlowDirection::TopDown;
    }

private:
    void flowBottomUpBtn_CheckedChanged(System::Object^ sender,
        System::EventArgs^ e)
    {
        this->flowLayoutPanel1->FlowDirection = FlowDirection::BottomUp;
    }

private:
    void flowLeftToRight_CheckedChanged(System::Object^ sender,
        System::EventArgs^ e)
    {
        this->flowLayoutPanel1->FlowDirection =
            FlowDirection::LeftToRight;
    }

private:
    void flowRightToLeftBtn_CheckedChanged(
        System::Object^ sender, System::EventArgs^ e)
    {
        this->flowLayoutPanel1->FlowDirection =
            FlowDirection::RightToLeft;
    }

private void flowTopDownBtn_CheckedChanged(
    System.Object sender, 
    System.EventArgs e)
{
    this.FlowLayoutPanel1.FlowDirection = FlowDirection.TopDown;
}

private void flowBottomUpBtn_CheckedChanged(
    System.Object sender, 
    System.EventArgs e)
{
    this.FlowLayoutPanel1.FlowDirection = FlowDirection.BottomUp;
}

private void flowLeftToRight_CheckedChanged(
    System.Object sender, 
    System.EventArgs e)
{
    this.FlowLayoutPanel1.FlowDirection = FlowDirection.LeftToRight;
}

private void flowRightToLeftBtn_CheckedChanged(
    System.Object sender, 
    System.EventArgs e)
{
    this.FlowLayoutPanel1.FlowDirection = FlowDirection.RightToLeft;
}

Private Sub flowTopDownBtn_CheckedChanged( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
Handles flowTopDownBtn.CheckedChanged

    Me.FlowLayoutPanel1.FlowDirection = FlowDirection.TopDown

End Sub

Private Sub flowBottomUpBtn_CheckedChanged( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
Handles flowBottomUpBtn.CheckedChanged

    Me.FlowLayoutPanel1.FlowDirection = FlowDirection.BottomUp

End Sub

Private Sub flowLeftToRight_CheckedChanged( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
Handles flowLeftToRight.CheckedChanged

    Me.FlowLayoutPanel1.FlowDirection = FlowDirection.LeftToRight

End Sub

Private Sub flowRightToLeftBtn_CheckedChanged( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
Handles flowRightToLeftBtn.CheckedChanged

    Me.FlowLayoutPanel1.FlowDirection = FlowDirection.RightToLeft

End Sub

注解

枚举 FlowDirection 描述设计图面或容器（例如窗体）上连续 UI 元素（通常是控件）的流方向。 此枚举由线性布局容器使用，例如 FlowLayoutPanel，该容器在 FlowLayoutPanel.FlowDirection 属性内部存储此信息。

确定 FlowDirection 将新控件添加到支持容器时默认放置的位置。 容器的流方向以及AnchorDock每个包含控件的属性在调整其容器大小时确定控件的重新排列。

该 FlowLayoutPanel 控件为其子控件提供 FlowBreak 属性。 将属性的值 FlowBreak 设置为 true 使 FlowLayoutPanel 控件停止在当前流方向中布局控件，并换行到下一行或列。

另请参阅

• FlowLayoutPanel
• FlowDirection
• Anchor
• Dock