DataGridView Drag And Drop Mouse Position Error

Oct 17, 2009

I'm writing an application for seat reservations. I use a DataGridView to represent seats. Each free seat is coloured in green and occupied seats are in blue.DataGridView is populated with names from database and user could add a name to a seat choosing from a list.Moreover the user has the possibility to move a name from one seat to another - not occupied via drag and drop operation.Eveything works well, but when moving a name from one cell to another I have to position the cursor over a cell that is one row above and four columns on the left of that one I choose.Which is the reason? Here is the code

[code]...

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I use this code :

Private Sub TextBox1_DragDrop(ByVal sender As Object, _
ByVal e As System.Windows.Forms.DragEventArgs) Handles DataGridView1.DragDrop
If e.Data.GetDataPresent(DataFormats.Text) Then

[code].....

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Public Class Form1
Dim i(1) As Integer
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As

[Code]......

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[code].....

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I have 2 Datagridview with 4 columns and 32 rows each other. And I want to move a row of DGV1 (source) into the DVG2 (destination) and i want that the selected row of DVG1 replace the row selected in DVG2.

Here my first little code :

Code:
Private clickedRow As DataGridViewRow
Private Sub DataGridView1_MouseDown(ByVal Sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles DataGridView1.MouseDown

[Code]....

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DataGridView1.AllowUserToOrderColumns = True
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[code]....

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Public Class frmDataGrid
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[code]....

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For Each DGR As DataGridViewRow In dgvJobs.SelectedRows
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If dgvProject.ColumnCount = 0 Then
For Each ColumnHeader As DataGridViewColumn In dgvJobs.Columns
Dim name As String = ColumnHeader.Name
[Code] .....

I'm making a form where I have two datagridviews. The first dgv is databound to a database. The second dgv is not databound. I want to allow users to drag rows from dgv1 and drop them on dgv2. At the moment I have managed to get it to the point where I can drag from dgv1 to dgv2 but the result is an empty row being added. When I try adding a row without using .Clone I get this error "Row provided already belongs to a DataGridView control."

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AAA
BBB
CCC
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EEE
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[Code]...

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ListView Drag&Drop allow to Drag&Drop between form??

Public Class frmModule
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Can it be drap and drop item to other form control??How to write the event when mouse up at the other form control?

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Note: The task pane has drag drop enabled, I ahve already tested I can drag/drop from task pane to excel but I need to do this the other way around?

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[Code]...

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Public Class Form1
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[Code]....

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If cmbClassLists.DroppedDown And Not cmbClassLists.SelectedIndex = -1 Then

[code].....

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I want to be able to hold CTRL down to select multiple text entries and drag them all to certain text boxes. Or even one at a time, but once I try dragging another word into the box it replace the first one. Is there any way to just have it add to the text box rather than replace it?

And if possible, place a "-" between each entry?

This is the pop-up form with the listbox that contains the words to drag:

Private Sub ListBox1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles ListBox1.MouseDown
ListBox1.DoDragDrop(ListBox1.SelectedItem, DragDropEffects.Copy)

[Code]....

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