主题：如何实现多个字段选择显示或隐藏？

如何实现多个字段选择显示或隐藏？想实现选择字段后，点击显示或隐藏   对应的被选择字段就实现显示或隐藏

此主题相关图片如下：1111.png

显示或隐藏按钮代码该什么写呢？

老师看了帮助 参照做成如下：

显示按钮代码：

Dim ckl As WinForm.CheckedListBox = e.Form.Controls("CheckedListBox1")
Dim tb As WinForm.Table = Forms("组合筛选").Controls("Table1")
Dim nms As New List(of String)
For i As Integer = 0 To ckl.Items.count - 1  '获取已经勾选的列
    If ckl.GetItemChecked(i) Then
        nms.Add(ckl.Items(i))
    End  If
Next
If nms.Count = 0 Then
    MessageBox.Show("至少要选择一列","提示",MessageBoxButtons.OK,MessageBoxIcon.Information)
    Return
End If
For i As Integer = 0 To nms.count -1
    For Each nm As String In nms
        tb.Table.Cols(nm).Visible = True
        tb.Table.Cols(nm).PrintWidth=80
    Next
Next

Dim bbt As WinForm.Button = Forms("组合筛选").Controls("Button1")
bbt.PerformClick

实现效果： 【为什么列宽会变化与其他不协调？】

 
此主题相关图片如下：22.png

 

隐藏按钮代码：

Dim ckl As WinForm.CheckedListBox = e.Form.Controls("CheckedListBox1")
Dim tb As WinForm.Table = Forms("组合筛选").Controls("Table1")
Dim nms As New List(of String)
For i As Integer = 0 To ckl.Items.count - 1  '获取已经勾选的列
    If ckl.GetItemChecked(i) Then
        nms.Add(ckl.Items(i))
    End  If
Next
If nms.Count = 0 Then
    MessageBox.Show("至少要选择一列","提示",MessageBoxButtons.OK,MessageBoxIcon.Information)
    Return
End If
For i As Integer = 0 To nms.count -1
    For Each nm As String In nms
        tb.Table.Cols(nm).Visible = false
    Next
Next

Dim bbt As WinForm.Button = Forms("组合筛选").Controls("Button1")
bbt.PerformClick

 

实现效果：

 

此主题相关图片如下：21.png


Button1按钮事件代码：【实现表列宽自动充满窗体】

Dim ts() As String = {"table1"}

For Each s As String In ts
    Dim t As Table = e.Form.controls(s).Table
    Dim width As Double = t.grid.width - t.grid.cols(0).widthdisplay
    Dim sum As Double = 0
    For Each c As object In t.grid.cols
        If c.index > 0 AndAlso c.visible = True Then
            sum += c.widthdisplay
        End If
    Next
    For Each c As object In t.grid.cols
        If c.index > 0 AndAlso c.visible = True Then
            c.width = c.widthdisplay/sum*width
        End If
    Next
Next

 

 

 

tb.Table.Cols(nm).PrintWidth=80

把这个注释了 貌似也一样

 

 

貌似下面的这个没有起作用？因为显示或隐藏的代码运行后会运行如下代码

Dim ts() As String = {"table1"}

For Each s As String In ts
    Dim t As Table = e.Form.controls(s).Table
    Dim width As Double = t.grid.width - t.grid.cols(0).widthdisplay
    Dim sum As Double = 0
    For Each c As object In t.grid.cols
        If c.index > 0 AndAlso c.visible = True Then
            sum += c.widthdisplay
        End If
    Next
    For Each c As object In t.grid.cols
        If c.index > 0 AndAlso c.visible = True Then
            c.width = c.widthdisplay/sum*width
        End If
    Next
Next

ok  谢谢老师