vb.net textbox1选中的文本，拖放到textbox2？

很久没有上这里了，今天看到了这个问题，尝试做了一个；

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本例以源文本框TextBox1全部文字作为拖放文字为例，实现拖放

1、向一个窗体中添加两个文本框，分别名为TextBox1，TextBox2。注意：把TextBox2控件的AllowDrop属性设置成True，这点不要遗漏。

2、完整的代码如下：

Public Class Form1

Private MouseIsDown As Boolean = False

Private Sub TextBox1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles TextBox1.MouseDown

'设置一个标志以显示鼠标已按下。

MouseIsDown = True

End Sub

Private Sub TextBox1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles TextBox1.MouseMove

If MouseIsDown Then

'开始拖动（将TextBox1的文本内容作为拖放内容）。

TextBox1.DoDragDrop(TextBox1.Text, DragDropEffects.Copy)

End If

MouseIsDown = False

End Sub

Private Sub TextBox2_DragEnter(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles TextBox2.DragEnter

'检查正在被拖放的数据的格式。

If (e.Data.GetDataPresent(DataFormats.Text)) Then

'显示复制光标（表示是拖放行为）。

e.Effect = DragDropEffects.Copy

Else

'显示不放置光标（表示不是拖放行为）。

e.Effect = DragDropEffects.None

End If

End Sub

Private Sub TextBox2_DragDrop(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles TextBox2.DragDrop

'粘贴文本（将拖放内容作为TextBox2的文本内容）。

TextBox2.Text = e.Data.GetData(DataFormats.Text)

End Sub

End Class

VB.NET怎么能拖动无框窗体？请注意看补充，高手进！

设置全局变量：

Dim drag As Boolean

Dim mousex As Integer

Dim mousey As Integer

假设你想拖动的是Panel1控件，以及此控件上的 Label1（用于显示标题）和PictureBox4（用于显示图标）：

Private Sub TitleMove_MouseDown(sender As Object, e As System.Windows.Forms.MouseEventArgs) Handles Panel1.MouseDown, Label1.MouseDown, PictureBox4.MouseDown

drag = True

mousex = Windows.Forms.Cursor.Position.X - Me.Left

mousey = Windows.Forms.Cursor.Position.Y - Me.Top

End Sub

Private Sub TitleMove_MouseMove(sender As Object, e As System.Windows.Forms.MouseEventArgs) Handles Panel1.MouseMove, Label1.MouseMove, PictureBox4.MouseMove

If drag Then

Me.Top = Windows.Forms.Cursor.Position.Y - mousey

Me.Left = Windows.Forms.Cursor.Position.X - mousex

End If

End Sub

Private Sub TitleMove_MouseUp(sender As Object, e As System.Windows.Forms.MouseEventArgs) Handles Panel1.MouseUp, Label1.MouseUp, PictureBox4.MouseUp

drag = False

End Sub

求助vb.net拖拽文件到窗体获取文件信息

这是一个简单的示例，你只需要新建一个项目，并在项目上放置一个文本框：TEXTBOX1，然后，将以下代码复制到代码区：

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Me.AllowDrop = True

End Sub

''建拖曳事件，实现文件拖放

Private Sub Form1_DragEnter(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles Me.DragEnter

Try

If e.Data.GetDataPresent(DataFormats.FileDrop) = True Then

e.Effect = DragDropEffects.Copy

Else

e.Effect = DragDropEffects.None

End If

Catch ex As Exception

MessageBox.Show(ex.Message)

End Try

End Sub

Private Sub Form1_DragDrop(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles Me.DragEnter

Try

Dim filepaht As String() = e.Data.GetData(DataFormats.FileDrop)

For Each File As String In filepaht

textBox1.Text = File

Next

Catch ex As Exception

MessageBox.Show(ex.Message)

End Try

End Sub

如此，在文本框里将会出现被拖曳文件的路径信息。

VB.NET如何实现无边框窗体拖动？ 如果能指定控件拖动更好 希望能有一点分析 使用VS2015

VB6.0写的，代码很简单，无意中写成的。应该可以参考。不需要任何api函数。在无边框窗体顶部中放入一个label标签。然后用label的 mouse down 和mouse move事件实现

Dim a, b As Single

Private Sub Label1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)

a = X

b = Y

End Sub

Private Sub Label1_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)

If Button = 1 Then

Form1.Move Left + X - a, Top + Y - b

End If

End Sub

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