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.
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I followed the suggestion from [URL].. this thread. however i face a bit of a problem in my case i have a combobox at row(i).cells(0) the code seems to take the last new rows where there's not record and shows error the debug error msg is A first chance exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll INSERT into taken(typeID,quantity) VALUES (5,39)INSERT into taken(typeID,quantity) VALUES (,)
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I have a DataGridView with 3 columns (metric_key, metric_name, metric_value).There are for example, 6 ROWS in this table (6 different metrics), added programmatically (DGV is not bound in any way)
Now, when I assign values in my grid I do:
dataGridView1.item("Metric_value",0).value = "value of the metric in row 0, in the column named "metric_Value".
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Im working with a DataGridView with an imported CSV file where the values are delimited with (,).. The grid works perfectly fine. My ultimate goal is to hide the grid out of view from the user and access the data in the grid based on the coordinates of the grid specified i.e (The cell in column 5, row 6 contains the value "Taco") and I want to save that value to a variable...Eventually I want to loop through all the values of a column and save them to individual variables to be later used. So far, this is what I have...
Dim sReader As New StreamReader("book1.csv")
Dim Record() As String
For x As Integer = 0 To 17[code]....
Presently, that will only display the data in column 0, row 0 in those labels...
Note: 17 in the for loop is the amount of columns in the data i provided.. that number will never change.
on my form I got two datagridviews.When I scroll one of them to left/right the other grid should get the same scrolling position.I found "Verticals crollingoffset" but this is readonly.How do I set vertical scrolling position from one grid to the other? One has scrollbars visible, the other not (it is used as a filter with one empty row)
View 1 RepliesI'd like to do something I thought was simple. All I'd like is to take the data from a connected database, then put those values into a scrolling line graph. Preferabley with 4 lines (taking information from separate tables) on the same graph. I've connected the database and set up a script to populate it with data, but that's as far as I go with graphs.
I've downloaded 'MSChart.exe', 'MSChart_VisalStudioAddOn.exe', ChartFXLiteNet' and others, yet none work. I've also followed a tutorial here on graphs, but it's for visual studio 2005, and I don't have the options required. I'm using Visual Studio 2008 with VB.NET.
i 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)
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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
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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 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.
Is it possible to show only the first 2 columnheaders in tile view of a listviewitem instead of all the definied columnheaders?
View 4 RepliesAny 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]......
Anyone who could provide me a direction to start with?
View 4 RepliesI 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
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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
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Anyone who could provide me a direction to start with?
View 3 RepliesI have written general module to transfer the grid values into respective textbox. For that I pass Listview control of form & parent control ( e. g. groupbox ) of textbox.
The module loop trrough each column of grid & store the value in respected textbox ( the textbox names are identical as that of grid column) It works fine, but when I pass tabcontrol it does not work
i have created one dynamic gridview with template fields. i have a problem with retriving data from the text box. how can i find the text box control.[code]
View 2 RepliesI'm trying to load several grids based on the Type values in my xml file. For example my xml file is in the following format:[code]How do I accomplish this when in the load event of my windows form?
View 2 RepliesI've been trying to make a grid to test some AI stuff I'm working on. I managed to do it using rectangles and graphics.rectangle (pens.black, rect) by using a vid on youtube, but it made the application virtually useless because of all the memory it was using. I don't need it to be an actual grid, but I do need it to have values as if it was a grid, so that I can issue commands (x,y coords). (I have been searching the forums for over an hour, but all examples are either useless or cant be converted correctly).
View 6 RepliesI have an infratistics grid that when I click on a row, the activerow gets set, then I click a button that will open a terminal form and ssh to an IP address in one of the activerow cells. It's not a problem until I connect to another row afterwards and it resets the activerow causing both forms to refer back to the latest activerow which would only be correct for the latest form opened. The problem then is that the terminal form refers back to the activerow cells for various updates. From my main form where the grid is, I open a new frmWodTelnet form to connect to the IP like this: [Code]
I haven't actually tried this yet, can't until next week just trying to get a grasp on how best to proceed. Does this look like it might work out for what I need, to lock the form values back to the original row until the form is closed? Or is there a better option I should be looking at.