VS 2008 Custom DataGridView Cells?
Mar 16, 2011
Ok I'm handling the RowPostPaint event so I can have the row's bounds so I can draw over that row in a custom manner.It looks good when it first loads, but as soon as I start scrolling, things get all wacky and aren't drawing.So when I first load the form, the grid looks like so:Looks good so far.But when I scroll to the bottom, it looks like this:It looks like the rows that aren't initially visible never get drawn, but don't even get drawn (the text anyways) even after the the row has been drawn.When I scroll back up to the top after this, it's looks like:Here is my RowPostPaint code, it's a little long but I tried to comment it so things wouldn't be too confusing.
vb.net
Private Sub dgv_paint(ByVal sender As Object, ByVal e As DataGridViewRowPostPaintEventArgs) Handles DataGridView1.RowPostPaint 'Set up
[code].....
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Aug 18, 2011
in datagridview control is there any method to merge the cells across the rows
i need to merge a button column across other rows basing on some cell values
of column 1
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Oct 18, 2010
I am trying to draw arrows between the cells on datagridview. The problem is, if I make graphics with:
VB.Net
Dim g As Graphics = dgwTable.CreateGraphics
Then draw something with this graphics, my lines stay behind the cells. Is there any way to draw onto the cells?Is there any way to draw arrows?
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Mar 4, 2011
I've been searching around a lot to figure this out. I found some code that sort of works:
VB.NET
If String.IsNullOrEmpty(CStr(Me.dgvList.Rows(i).Cells(0).Value)) Then
End If
[code].....
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Nov 11, 2009
Is there any way to merge cells in datagridview in vb2008 like we could do it in excel?
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May 10, 2012
How can i replace selected cells in a datagridview by using copy and paste or some other method. I want to highlight a Row or Column and then replace all the highlighted cells with one value
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Jan 6, 2011
I was looking for some code that would change the colors of some rows in my datagridview but I could not get that to work. I have this code which should work but it doesn't, I could not find any replacements. I need to change the color of some rows.
Do While cnt > -1 If datagridorder.Rows(cnt).Cells.Item("DataGridViewTextBoxColumn16").Value.ToString.Substring(datagridorder.Rows(cnt).Cells.Item("DataGridViewTextBoxColumn16").Value.ToString.Length - 5, 5) = "Cease" Then
datagridorder.Rows(cnt).DefaultCellStyle.BackColor = Color.Red
End If
cnt -= 1
Loop
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May 4, 2011
I've a datagridview with a multiline textboxcolum, if the cell content is small (one line) the scroll works fine and I can see the content of all rows. But, if a row cell content is very large (ten lines), only is visible the top of the cell and if I try scroll down, the scroll goes to the next row without can see the rest of the cell text, even using the arrows for move inside the cell, the bottom is not visible.I was searching in the web and the only solution is use panel and put inside the datagridview. It looks me a fix more than a solution.
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Feb 16, 2011
Well, the title pretty much says it all. I have a user control that is a a collection of six label controls. three are used as visual color indicators, and the other three are used as the corresponding value for each color indicator. (It's sort of like a legend key on a chart or map.) I have created a custom class to store the three values, and the associated methods to interact with the values. (I can probably use a structure instead of a class, but right now, I don't want to discuss that.) My problem, is that I want to show my user control inside a cell of a DataGridView. I've looked at the examples that create a MaskedTextBox DataGridViewCell, but I can't seem to get it to work. Here is what I have:
[Code]....
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Aug 6, 2009
I have a custom dgv column and custom cell.I m trying to instance the column and pass it an instance of the cell as a template, but it's not working.my code needs a form with a button and dgv on it. When the button is click, the text in cell(0,0) should toggle from on to off. [code]
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Jun 25, 2009
I came across this great article on creating a custom datagridview column which creates a graph-like effect in the cells of a custom datagridview column:[URL]..Does anyone know how you would edit this to format the number in the cell as a percentage? And does anyone know how you would set this up to take 0 values which do not create any graph effects at all.I have been trying to do this but keep getting errors.
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Nov 13, 2008
i would like to know the syntax for this.i wanna add the values of 2 cells and then i will display their total in textbox.i have been trying to use datagridview.rows.cells but i cant just use it to add to cells values.
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Jun 12, 2012
i wanna compare my cells in datagridview. I have a datagridview with n columns and n rows. I have my datagridview row value as Time . I need to compare all the row cell values with one particular time.
Here you go with an example.
if my dgv is filled with time values such as 3:42:10 AM 4:43:17 PM etc..I need to compare all the cell values to 5:00:00 PM. greater than condition. I need to highlight only the values which are greater than 5:00:00 PM but less than 3:30:00 AM.
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Apr 29, 2010
I'm current in college and working on some computing coursework and putting the finishing touches on it when i stumbled across a bit of a problem.I'm trying to compare two cells in a database and i use datagridview to display the database in my form. The database is created by sql commands within my actual program if that makes any difference. What i have created for my coursework is a program that manages the stock and such for a small music shop and in the stock table im trying to compare values in two different collumns, but in the same rows. I need it to display a message box in the event that the value in the one cell is less than the other, which is basically checking if the stock for a certain CD has fallen below the reorder level.
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Jan 30, 2012
I have 3 column Qty,Price and Amount and i need to compute the amount per line using DataGridView, what are the possible events I may use?
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May 29, 2010
I am usinb VB 2010 How can I count the number of cells in a row.
My datagridview currently holds 10 numbers in each of 3 rows
The number of cells grows and I would like to be able to count how many cells are filled
All cells must contain a number
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Jan 11, 2010
I'm trying to fill a DGV from a (List Of).. This is my code. It's not working & I don't know why..
Public AllBooks As New List(Of Book)
Public dgvInventory As New DataGridView
Private Sub BookDetails_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)
[code].......
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Jan 6, 2011
I have a datagridview and I want to click on it BAD to jump to 4 cell, but to walkwith the arrows is normal, I did this because the KeyDown / UP does not work becausethe cells are in Edit Mode:
Private Sub DataGridView1_EditingControlShowing (ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) HandlesdgvContactos.EditingControlShowing
Dim EditingTxtBox The TextBox = CType (e.Control, TextBox)
[code]....
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Oct 20, 2009
I'm completely newbie and I have been trying to solve a problem that is strongly related to what you guys had discussed here .
I have a datagridview (datagridview1) on my form and it is not linked to any database. I'm only trying to programatically enter values into the rows of the grid by values that my program generates.
For example if the value that my program generates is x, y, z then I would like to say something like[code]...
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Jul 24, 2009
Get coordinate of any cells in datagridview?
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Sep 13, 2008
Is the following grid layout possible with DataGridView in VB.net? Kind of similar to html table layout. I'm adding data cell by cell. However I'm not sure on how to get the layout for Group A & Group B Cells.
-------------------------------------------------|
| Item11 | Item12 | Item13 |
|-----------------------------------------|
| Item21 | Item22 | Item23 |
GroupA |-----------------------------------------|
| Item31 | Item32 | Item33 |
|-----------------------------------------|
| Item41 | Item42 | Item43 |
-------------------------------------------------|
| Item51 | Item52 | Item53 |
|-----------------------------------------|
GroupB | Item61 | Item62 | Item63 |
|-----------------------------------------|
|Item71 | Item72 | Item73 |
-------------------------------------------------|
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Dec 2, 2010
when looping through the cells of each row in a datagrid... I am trying to get the cell type...
wheather it is a checkbox or not... and if the checkbox is null... then set it to false...
in my datatable, i've defaulted the value to false, but seems to have not effect
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Feb 11, 2010
I want how to merge cells in DataGridView?
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Dec 18, 2010
Is there any way to retrieve data from certain cells of a Datagridview?
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Mar 4, 2009
I want to select all cells from datagrid for doing futhur operation. I had use following code but it read only one selected data from datagrid .
DataGridView1.SelectedCells.Item(0).Value
read all data from datagrid cells
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Sep 14, 2011
I need to represent different 4 (max, maybe 2 or 3) colors to the user in datagridview control @ VB.NET. An example cell would be:
---------------
| Blue | Red |
--------------- <<<- A Cell
| Gray | Blue |
---------------
i need to split a cell to different size or counts. I know merging cells is possible, is opposite-merge possible?
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Jan 17, 2009
How do I add the cell on my datagridview? I am not sure how to do that but I have four columns which I want to add the cell on 3rd column on my datagridview.
DataGridView1.CurrentCell.Value("test").ToString()
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Jan 29, 2012
VB 2010 i am trying to add an image to the first column cell in each row. The second column rows will show text.
ie so i will have a picture in col 1 then a text reference in col 2, of each row.[code]...
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Jul 4, 2011
Im using vb2010 express. I have a datagridview in my form. All my cells in the datagridview has a "sunken" cellborder. When mouse is over a cell, i want to change the cell border of that cell to "raised". I tried lots of thing, but i havent suceeded to change just "one" cell's border.
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Feb 3, 2010
I used this example to create a DateTime column for a DataGridView in my winforms app. [URL]I can see the new column in the Windows Forms Designer and add it to an existing DataGridView. However, I want to be able to change the display format when I change the "DefaultCellStyle" within the designer. The designer generated code looks like this:
[Code]...
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