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DoDragDrop Event throws Object Reference not set... 11 Years Ago by Doogledude123 Button1.DoDragDrop(BackgroundImage, DragDropEffects.None) Throws an error ' Object reference not set to an instance of an object. ' First time I've used DoDragDrop, and first time with 2012 :) Datagrid DoDragDrop Event 15 Years Ago by farooq82 … the Index as "Data" argument of the DoDragDrop Function DataGridViewCashBook.DoDragDrop(DataGridViewCashBook.Rows(Index).Cells(4).Value, DragDropEffects.Move) 'DataGridViewCashBook… C# Problem with Accessing Multiple Properties of a Control via DoDragDrop 13 Years Ago by madfase …, MouseEventArgs e) { string buttonTag = button1.Tag.ToString(); button1.DoDragDrop(buttonTag, DragDropEffects.Copy); //button1.DoDragDrop(button1.Image, DragDropEffects.Copy); } private void button2_DragDrop(object… Re: C# Problem with Accessing Multiple Properties of a Control via DoDragDrop 13 Years Ago by mcriscolo … can you do this in "button1_MouseDown": [CODE]button1.DoDragDrop(button1, DragDropEffects.Copy);[/CODE] Then, in "button2_DragDrop": [CODE… Restrict a specified area in a wx.window 14 Years Ago by Nubie2001 …wx.DropSource(self) dropSource.SetData(ldata) dropSource.DoDragDrop(wx.Drag_AllowMove) # neu darstellen self.Refresh()…(self) dropSource.SetData(ldata) dropSource.DoDragDrop(wx.Drag_AllowMove) #self.RefreshRect(wx.Rect… I'm a beginner and need some help 13 Years Ago by Arturo32 …e) { if (e.Button == MouseButtons.Left) Picture8.DoDragDrop(Picture8.Image, DragDropEffects.All); } //------------- for Picture9 -----------…{ if (e.Button == MouseButtons.Left) Picture9.DoDragDrop(Picture9.Image,DragDropEffects.All); } [/CODE] i've… Re: Drag-Drop to text box does not work 10 Years Ago by Reverend Jim …As System.Windows.Forms.MouseEventArgs) Handles ListBox1.MouseDown ListBox1.DoDragDrop(ListBox1.SelectedItems.Item(0), DragDropEffects.Copy Or DragDropEffects.Move)… As System.Windows.Forms.ItemDragEventArgs) Handles ListView1.ItemDrag ListView1.DoDragDrop(ListView1.SelectedItems(0).Text, DragDropEffects.Copy Or DragDropEffects.Move)… Re: Drag-Drop to text box does not work 10 Years Ago by Patrick_3 … had to do with line 34 of your code ListView1.DoDragDrop(ListView1.SelectedItems(0).Text, DragDropEffects.Copy Or DragDropEffects.Move) I… was looking for effect 'Copy' but was creating the DoDragDrop with the effect 'Move', VB did not like this. Thanks… multiple ghost images with custom ListView 16 Years Ago by cordov … to understand better). I tryed to use the other function DoDragDrop(DataObjectEx* pDataObject, Control* ctrl, DragDropEffects de, Point pt, IntPtr hBmp… DragAndDrop doesn't Move 16 Years Ago by fishsqzr ….GetData(typeof(string))); } private void listBox1_MouseDown(object sender, MouseEventArgs e) { DoDragDrop(listBox1.Items[listBox1.SelectedIndex], DragDropEffects.Move); } }[/CODE] Drag and drop items from forms to the desktop or to any entity outside the form. 15 Years Ago by murderotica … as an attachment. I can now drag it using the DoDragDrop function and able to drop it to other ListView, but… Dropping a DataObject from Win form to desktop. 15 Years Ago by murderotica … f = listview.SelectedItems[0].Text; object.SetData(DataFormats.FileDrop, f); DoDragDrop(object, DragDropEffects.All); } [/CODE] I can't find any article… Troubles with drag and drop 15 Years Ago by Sophiron ….Windows.Forms.MouseEventArgs) Handles txtRoll1.MouseMove If MouseIsDown Then txtRoll1.DoDragDrop(txtRoll1.Text, DragDropEffects.Copy) End If MouseIsDown = False End Sub… How to drag/drop labels ,that created at run time 14 Years Ago by Nada_ward … Point(5, 5 ) ser1.Controls.Add(l1) ser1.Show() l1.DoDragDrop(l1, DragDropEffects.Move) End Sub Private Sub picturebox3_DragEnter(ByVal sender… Problem on dragging 14 Years Ago by Nada_ward … As System.Windows.Forms.MouseEventArgs) If mouse = True Then sender.DoDragDrop(sender.text, DragDropEffects.Copy Or DragDropEffects.Move) End If draggedlabel… drag button into picturebox. 14 Years Ago by lishannx … void pictureBox1_MouseDown(object sender, MouseEventArgs e) { Panel source = (Panel)sender; DoDragDrop(source.BackgroundImage, DragDropEffects.Copy); } private void pictureBox1_DragEnter(object sender, DragEventArgs… Drag and drop 13 Years Ago by nv136 … e As System.Windows.Forms.MouseEventArgs) Handles tbDragFrom.MouseDown tbDragFrom.DoDragDrop(tbDragFrom.Text, DragDropEffects.Move) End Sub Private Sub textBoxDragEnter(ByVal… Ghost Drag and Drop 13 Years Ago by taylby … form; which has worked till this reguirement through: [CODE]lstjobs.DoDragDrop(JobID,DragDropEffects.All)[/CODE] to set the cursor I am… photo editing.. 13 Years Ago by kazekagerandy … New HairStyle thisStyle.Pic = CType(CType(sender, PictureBox).Image, Bitmap) DoDragDrop(thisStyle, DragDropEffects.All) End Sub Private Sub Form1_DragEnter(ByVal sender… transparency of a bitmap in a picuturebox 13 Years Ago by kazekagerandy … New Foundation thisfoundation.Pic = CType(CType(sender, PictureBox).Image, Bitmap) DoDragDrop(thisfoundation, DragDropEffects.All) End Sub Private Sub foundationfrm_DragEnter(ByVal sender… GUI Drag/Drop Segmentation Fault 12 Years Ago by Griever …(text) tds = wx.DropSource(self.tree) tds.SetData(tdo) tds.DoDragDrop(True) #====================================================================# # Create App # #============# class App(wx.App): def OnInit(self… Drag-Drop to text box does not work 10 Years Ago by Patrick_3 … Next ' Create a DataObject containg the array of ListViewItems. sender.DoDragDrop(New DataObject(DataFormats.StringFormat, addString), DragDropEffects.Move) End Sub I… Image File Tagging App in Python/wxPython 2 Years Ago by Reverend Jim ….SetData(tobj) #save text object in the new object srce.DoDragDrop(True) #complete the drag/drop event.Skip() def evt_DeleteTag(self… Re: drag and drop problem 15 Years Ago by jainendra.shah …mRecallFileName + "\n"); chktable1.DoDragDrop(mRecallFileName,DragDropEffects.Copy | DropEffects.Move);…true) { mDraging = false; chktable1.DoDragDrop(mRecallFileName, DragDropEffects.None); MessageBox.Show("ii… Re: Hello,windows applications,help please 15 Years Ago by JerryShaw … into a Drag operation by using the button's DoDragDrop method. Now you have a button in the drag….Button == MouseButtons.Left) { Button btn = sender as Button; btn.DoDragDrop(sender, DragDropEffects.Copy); } } private void label1_DragOver(object sender, DragEventArgs e… Re: Is it posible to drag a control with the mouse? How can I implement Dragmode vb6 13 Years Ago by Oxiegen … sourcePictureBox.MouseDown Dim pic As PictureBox = DirectCast(sender, PictureBox) pic.DoDragDrop(pic.Image, DragDropEffects.Move) ' Or if you prefer to just… copy the picture 'pic.DoDragDrop(pic.Image, DragDropEffects.Copy) End Sub [/CODE] For the target… Re: Is it posible to drag a control with the mouse? How can I implement Dragmode vb6 13 Years Ago by Oxiegen …) Dim img As BitMap = pic.Image pic.Image = Nothing pic.DoDragDrop(img, DragDropEffects.Move) ' Or if you prefer to just copy… the picture 'pic.DoDragDrop(img, DragDropEffects.Copy) End If bMouseIsDown = False End Sub [/CODE… Re: Drag & drop calculator 13 Years Ago by ddanbe Study this: [url]http://msdn.microsoft.com/en-us/library/system.windows.forms.control.dodragdrop.aspx[/url] Assuming that your operators are labels, implement the DoDragDrop in the MouseDown handler of the labels. If the place to drop is a textbox, set its AllowDrop property to true. Re: Drag and Drop between DGV's - how to determine the source DGV? 6 Years Ago by xrjf … If IsMouseDown = mouseDwn.srcIsNum2 Then With DataGridView2 .DoDragDrop(CStr(.Rows(e.RowIndex).Cells(e.ColumnIndex).Value), …If IsMouseDown = mouseDwn.srcIsNum1 Then With DataGridView1 .DoDragDrop(CStr(.Rows(e.RowIndex).Cells(e.ColumnIndex).Value), … Re: Drag and drop from windows forms to desktop and windows explorer 15 Years Ago by murderotica … f = listview.SelectedItems[0].Text; object.SetData(DataFormats.FileDrop, f); DoDragDrop(object, DragDropEffects.All); } [/CODE] It can drag already but cannot…