Question

我有一个包含两个SplitContainers的WinForms应用程序。第一个SplitContainer跨越整个表单，其方向是水平的。第二个SplitContainer位于第一个拆分容器的左侧面板内，其方向是垂直的。我使用应用程序设置绑定每个拆分容器的SplitterDistance属性，以便在用户退出程序时保存位置。但是，这会导致奇怪的问题。如果我拖动主拆分容器的位置然后拖动第二个拆分容器的位置，则第一个拆分容器会跳回原始位置并且不会保存位置。如果我删除第二个拆分容器一切正常。如果没有绑定SplitterDistance属性，我也没有看到这个问题。

有人知道造成这种情况的原因或解决方法吗？

更新我现在也想通了如果我从第二个拆分容器中删除属性绑定一切正常。即使我手动尝试实现这一点（即删除属性绑定并在SplitContainer2.SplitterMoved事件中添加My.Settings.sideDist = SplitContainer2.SplitterDistance），问题仍然存在。

我正在使用vb.net。

设计师生成代码：

<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Class Form1
    Inherits System.Windows.Forms.Form

    'Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overrides Sub Dispose(ByVal disposing As Boolean)
        Try
            If disposing AndAlso components IsNot Nothing Then
                components.Dispose()
            End If
        Finally
            MyBase.Dispose(disposing)
        End Try
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.SplitContainer1 = New System.Windows.Forms.SplitContainer()
        Me.SplitContainer2 = New System.Windows.Forms.SplitContainer()
        Me.ListBox1 = New System.Windows.Forms.ListBox()
        Me.ListBox2 = New System.Windows.Forms.ListBox()
        CType(Me.SplitContainer1, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SplitContainer1.Panel1.SuspendLayout()
        Me.SplitContainer1.Panel2.SuspendLayout()
        Me.SplitContainer1.SuspendLayout()
        CType(Me.SplitContainer2, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SplitContainer2.Panel1.SuspendLayout()
        Me.SplitContainer2.SuspendLayout()
        Me.SuspendLayout()
        '
        'SplitContainer1
        '
        Me.SplitContainer1.DataBindings.Add(New System.Windows.Forms.Binding("SplitterDistance", Global.WindowsApplication1.My.MySettings.Default, "mainDist", True, System.Windows.Forms.DataSourceUpdateMode.OnPropertyChanged))
        Me.SplitContainer1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.SplitContainer1.Location = New System.Drawing.Point(0, 0)
        Me.SplitContainer1.Name = "SplitContainer1"
        '
        'SplitContainer1.Panel1
        '
        Me.SplitContainer1.Panel1.Controls.Add(Me.SplitContainer2)
        '
        'SplitContainer1.Panel2
        '
        Me.SplitContainer1.Panel2.Controls.Add(Me.ListBox2)
        Me.SplitContainer1.Size = New System.Drawing.Size(730, 413)
        Me.SplitContainer1.SplitterDistance = Global.WindowsApplication1.My.MySettings.Default.mainDist
        Me.SplitContainer1.TabIndex = 0
        '
        'SplitContainer2
        '
        Me.SplitContainer2.DataBindings.Add(New System.Windows.Forms.Binding("SplitterDistance", Global.WindowsApplication1.My.MySettings.Default, "sideDist", True, System.Windows.Forms.DataSourceUpdateMode.OnPropertyChanged))
        Me.SplitContainer2.Dock = System.Windows.Forms.DockStyle.Fill
        Me.SplitContainer2.Location = New System.Drawing.Point(0, 0)
        Me.SplitContainer2.Name = "SplitContainer2"
        Me.SplitContainer2.Orientation = System.Windows.Forms.Orientation.Horizontal
        '
        'SplitContainer2.Panel1
        '
        Me.SplitContainer2.Panel1.Controls.Add(Me.ListBox1)
        Me.SplitContainer2.Size = New System.Drawing.Size(310, 413)
        Me.SplitContainer2.SplitterDistance = Global.WindowsApplication1.My.MySettings.Default.sideDist
        Me.SplitContainer2.TabIndex = 0
        '
        'ListBox1
        '
        Me.ListBox1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.ListBox1.FormattingEnabled = True
        Me.ListBox1.Location = New System.Drawing.Point(0, 0)
        Me.ListBox1.Name = "ListBox1"
        Me.ListBox1.Size = New System.Drawing.Size(310, 49)
        Me.ListBox1.TabIndex = 0
        '
        'ListBox2
        '
        Me.ListBox2.Dock = System.Windows.Forms.DockStyle.Fill
        Me.ListBox2.FormattingEnabled = True
        Me.ListBox2.Location = New System.Drawing.Point(0, 0)
        Me.ListBox2.Name = "ListBox2"
        Me.ListBox2.Size = New System.Drawing.Size(416, 413)
        Me.ListBox2.TabIndex = 0
        '
        'Form1
        '
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(730, 413)
        Me.Controls.Add(Me.SplitContainer1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.SplitContainer1.Panel1.ResumeLayout(False)
        Me.SplitContainer1.Panel2.ResumeLayout(False)
        CType(Me.SplitContainer1, System.ComponentModel.ISupportInitialize).EndInit()
        Me.SplitContainer1.ResumeLayout(False)
        Me.SplitContainer2.Panel1.ResumeLayout(False)
        CType(Me.SplitContainer2, System.ComponentModel.ISupportInitialize).EndInit()
        Me.SplitContainer2.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub
    Friend WithEvents SplitContainer1 As System.Windows.Forms.SplitContainer
    Friend WithEvents ListBox2 As System.Windows.Forms.ListBox
    Friend WithEvents SplitContainer2 As System.Windows.Forms.SplitContainer
    Friend WithEvents ListBox1 As System.Windows.Forms.ListBox

End Class

Answer 1

虽然我建议不要通过设计器文件设置DataBindings的{{1}}属性（这个属性没有暴露给设计者的原因），真正的问题是应用程序设置是没有得到更新。当用户修改SplitContainer一切都很好时，但是当控件变为无效时，将重新读取设置并从未初始值更改的设置中应用该设置。简单的解决方案是将新值保存回设置。以下代码应该足够您：

SplitterDistance

Answer 2

旧话题，但是我可以通过将Splitter的位置记录为splitcontainer高度的十进制来解决SplitContainer错误（？）。所以我的Settings Save（）方法看起来像这样：

Properties.Settings.Default.VertSplitterDistance = (decimal)VertSplitContainer.SplitterDistance / (decimal)VertSplitContainer.Width;
Properties.Settings.Default.Save();

在初始化表格后，要在应用程序启动时加载设置：

VertSplitContainer.SplitterDistance = (int)Math.Round(Properties.Settings.Default.HorizontalSplitterDistance * HorizontalSplitContainer.Height, 0);

（这是C＃，但应该可以轻松转换为vb.net ...）

当属性绑定到设置时，奇怪的拆分容器行为

2 个答案: