i created a datagridview whcih i am populating from a DB table.unfortunately i had to cancel the scroll bar's and lost the ability to scroll down using the mouse wheel.i was able to create a new handler to handle mouse wheel Under the form load event [code]but i still can't scroll down, and i am a bit lost.
View 4 RepliesIs there any way to determine if the mouse scrolls up or down using the Mousewheel handler on a sub? [code]I want to be able to adjust the value of userzoom up or down according to if the mouse is wheeled up or down.
View 2 Repliesi need to scroll a datagridview, my scroll bar is set to false so i need to do it using code.currently i am scrolling using the following code, but i would like to modify the code to scroll from one line to the next and see the blue bar actually selecting the rows. how do i do so
Private Sub grdMouseWheel(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs)
[code].....
I have a DataGridView with, say, a half dozen columns on it; the right-most column being the widest (a description that might exceed the window's width). If the user presses the Home/End or PgUp/PgDn keys to navigate thru the data, it will sometimes scroll horizontally to the right, which is annoying. Is there a way to prevent this?
I've tried .ScrollBars = ScrollBars.Vertical(so there's no horiz scrollbar), but that doesn't solve the problem. I'm not sure how to make the 1st column be always visible - but even if I make it visible upon displaying the grid.I guess basically I don't WANT it to scroll horizontally, except when the USER scrolls.
I have some data in my DataGridView. I want the user to be able to scroll through data but not select any item. If I make enabled=false, even scrolling does not work
View 2 RepliesI have the following Code in my Form, but the PrintPreviewDialog is not showing all rows. Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
Is there a way to use wheel mouse and scroll vertical bar without actually get focus on datagridview in vb.net?
View 1 RepliesHow (if possible) can the datagridview be set to not scroll to the last row when adding a new row?
View 1 RepliesI have 2 datagrids and I want one datagrid to have a scrolling bar and the other should not have a scroll bar. How can I track the on click event on the scroll bar ? And then force the csroll on the datagrid which does not have a scroll ?
View 1 RepliesI have a datgridview that has two columns that allow text wrapping.When I scroll past the visible portion of the grid I can only see a single line of text even with a refresh call on the scroll event.
View 4 RepliesA program I am making required that I write my own code for column reordering rather than using the built in column reordering in the datagridview control. When I am dragging a column my code checks if the cursor is near to the right hand side of the control and if so it scrolls to the right using firstDisplayedColumnIndex.
The problem I am encountering is caused by the fact that when I do my custom dragging of columns the display index is changed not the column index itself.So when my code tries to scroll to the right using firstDisplayedColumnIndex once it reaches the very right it jumps back and forth. This only happens when I have moved the first column and thus when the first displayed column doesn't have the lowest index.
I have a DataGridView where I bind a datasource (sql query) to it. The row count is high with many columns. Trying to scroll through this DGV is painfully slow.
Does anyone know of any kinds of optimization I can do so that I can scroll faster? Like what is the DataGrid doing when you scroll? Does it repaint every screenful? Does it validate every row? It seems like it is doing something unneeded when a user scrolls.
I generate a DataGridView using the result of a query. The query generates a LOT of columns (more than 75). Obviously the DataGridView does not show all of them. I wrote a small procedure that extracts data from the DataGridView and generates an Excel file ora .csv file.
[Code]...
Any way to "lock" columns in a data grid view so that when scrolling horizontally, the column will stay in view. Similar to the Freeze Panes functionality in Excel. I am using VB.net 2005 express.
View 2 RepliesI'm noticing that sometimes strings drawn in a given column or row will be slightly over-antialiased or altogether clipped after scrolling horizontally or vertically.I can see that the quick way to clear this up is to send a final .Refresh() call to the DataGridView after completing the scroll. But, unlike the ReSize event for Forms, there doesn't seem to be a Begin and End Scroll event for controls, so I can't just send a .Refresh() to the DataGridView after scrolling.Does anyone have an idea how I might go about detecting when a scroll event has completed so I can send that final .Refresh() to the DataGridView?
View 5 RepliesAfter scouring the articles online I have come up with this design for a winforms based touchscreen app that needs smartphone like scrolling. The app itself will run on a tablet laptop or touchscreen desktop.I put everything I want to scroll on a panel. Set autoscroll to true (which will show scrollbars)Now put this whole panel inside a groupbox.Shrink the groupbox until the scrollbars are hidden (visually hidden, not visible = false)
Now the fun part I am stuck at.I think I have to handle the mousedown, mouseup & mousemove on the panel to set the autoscrollposition so that when someone touches the panel and drags, it does it's scroll magic. Please help fill in the few lines of code in below method stubs. The msdn doc on autoscrollposition is very confusing since it returns negative numbers but needs to be set to positive with abs and what not.
Point mouseDownPoint;
Point mouseUpPoint;
Point mouseDragPoint;[code]......
I need to limit a Textbox and DataGridView to only enter text in the fixed size of the cell/textbox on the screen. So I have limited the cell/textbox so user can not change it size. Both allow multiline and wordwrap. cell/textbox is sized to accept 5 lines of data (wordwrap or enters) This is like an online form.So the text enter will be printed so I can not allow scrolling in the cell/textbox.
How can I stop the scrolling of the text inside the cell/textbox.
Also : if the user Paste into the cell/textbox how to truncate text if larger than display area.
sample settings:
DataGridView1.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.None
DataGridView1.AllowUserToResizeRows = False
[Code].....
I currently have a label scrolling text, But for some reason it only displays Certain song titles/text. Does Anyone know why?!
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
OpenFileDialog1.ShowDialog()
AxWindowsMediaPlayer1.URL = OpenFileDialog1.FileName
[code]....
I have a usercontrol I created. I added a panel and a vertical scrollbar to the right of it. I'd like to be able to scroll it with the mousewheel. The problem is there doesn't seem to be any events that fire on mousewheel. If I take the panel off then the usercontrol has focus and it will fire on mousewheel in the form. But with the panel on it doesn't seem to fire the mousewheel event of the panel, or the usercontrol within the control or even on the form. The best solution would be to have an event fire in the usercontrol but I'd even accept an event on the form and feed it back into the usercontrol.
I'm using vb.net and vs2005 if it matters.
When I look on the Internet I find many want to know how to get MouseWheel events with a UserControl.I'm getting scrolling with the mouse wheel and don't know why.It doesn't seem to be the default since I have other usercontrols that do not respond the the mouse wheel.In one UserControll I find if I move the mose wheel the contents moves. Actully moves too much for good viewing.I've searched the code for "Wheel" - no hits. Also for e.Delts - no hits. Finally I tried:
[code]...
Commented out as shown I do not get the unwanted mouse moves.If I remove the apostrophe I do get them.
Questions:
Is it OK to not call the Base sub in some cases?How do I find out if it is OK? (For example I don't imagine you'd want to not call it in New()Secondly and most important, What is going on? Why and I getting scrolling with the wheel in a Usercontrol and not getting it in other UserControls?
I can send global mouse click and mouse move, but how can I send a global mousewheel that I don't know which window or control was focused? Is that something doing with SendMouse?
View 1 Repliesthe MouseWheel event triggers 3 times every time i scroll ... this i believe is because i have my wheel set in windows to scroll 3 lines at a time but i am updating a "zoom" and only want it to trigger 1ce per wheel movement any ideas?
View 9 RepliesHow do I code to scroll the panel using the mouse wheel when the mouse pointer is over the panel using the actual scrollbar?
View 1 RepliesI have a Panel set to Auto Scroll and a Picture Box inside of the Panel that's set to Auto Size. I can use the scroll bars, but why wont my mouse wheel scroll the panel up and down?
View 4 Replieshow do I disable the mousewheel scroll for a combobox. alternatively I don't mind if I can make it keep its original text without actually disabling mousewhell scroll
View 6 RepliesHow can I let the user still scroll with their mousewheel when scrollbars in my webbrowser are disabled?
View 6 RepliesHow do you move the selected row to the next row using the wheel mouse in a datagridview?
View 2 RepliesIs it possible to get the MouseWheel event from an Interoped ActiveX Control?
I have a DXF Viewer (with measure) control I wrote in VB6 that is quite frankly... Huge. It would take an inordinate amount of time to rewrite the whole thing and supporting tools in VB.NET. The MouseWheel event is used to Zoom in and Out. The control has a MouseWheel_Input() method to accept MouseWheel data from the host.
I added all the VB6 Mouse events, the Enabled Property, and The ActiveControl Property in VB6. Recompiled and registered the control on my VB.NET development machine. Added the control to my new VB.NET project and verified it has a focus method.
how to make the preview scroll (smoothly) with the mousewheel?
Private Sub print_preview_MouseWheel(sender As Object, e As System.Windows.Forms.MouseEventArgs) Handles print_preview.MouseWheel
If e.Delta............???
End Sub
I'm developing User Control. It have many picture box and I use MouseWheel event on every picture box. Why MouseWheel event work only after every picture box was selected?
View 6 Replies