How can I get the position of a certain cell of a datagridview. To be specific I don't want the mouse coordinates. Suppose I have a datagridview with Name (ReadOnly), ID and TransDate columns and I want to popup a tiny lookup form when the mouse is clicked or Enter button is pressed when the focus is upon the Name column. The lookup form should openup exactly upon the Name column of the selected row.
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How can I find the X and Y position of a datagrid cell? I can provide the row and cell number if needed.
View 6 RepliesI suspect I'm being dense here and overlooking the obvious but can anyone tell me how I can get the cellposition of the of the cell within a tablelayoutpanel from my mouse position?I have a tablelayoutpanel with 2 columns and 4 rows and I am handling a DragDrop event of a custom control into it. I want to work out the column and row position of the mouse cursor so I can use setcellposition to put my custom control in the right place but I can't fin
View 1 RepliesHave this code so that when a checkbox in a column of my datagridview is checked, then the corresponding cell in column 2 (of the same row the check box is in) will turn blue with font color white.
[code]...
I'd also like to add a line so that as well as the cell going blue, the bottom border of the cell disappears, so cellborderstyle = none.
I have a DataGridView with several columns. One column is a TextBox column named "Status". This column can only show one of three values: 'Final', 'Ready', or 'No Reportable'. I want to have some code that would turn the TextBox cell into a ComboBox cell when the user left-clicks on the cell to allow the user to choose one of these three options. When the user clicks elsewhere or the cell loses focus I want the cell to change back to a TextBox cell.
Here is what I have so far, but the code throws an exception indicated below Plus, I don't think the code would remove the combobox when the cell loses focus.
Exception: "Provided cell does not belong to this DataGridView control."
Private Sub dgvCalculatedResults_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles dgvCalculatedResults.MouseDown
Dim ht As DataGridView.HitTestInfo = Me.dgvCalculatedResults.HitTest(e.X, e.Y)
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I wanted to create a module / tool similar to MS word where user should be able to add controls, resize controls, drag and drop controls.Anyway, I have got lot of references on how to resize control, drag and drop add control etc...my main requirement is i need a way to add grid and should be able to add cells to it. When i resize the grid control, the cell height & width should get extended and compressed accordingly. Also i need to save position of the controls to a text file.Saving positon of other controls is easy but most importantly i need to save each cell position of the grid.
View 2 RepliesI suspect I'm being dense here and overlooking the obvious but can anyone tell me how I can get the cellposition of the of the cell within a tablelayoutpanel from my mouse position?
I have a tablelayoutpanel with 2 columns and 4 rows and I am handling a DragDrop event of a custom control into it. I want to work out the column and row position of the mouse cursor so I can use setcellposition to put my custom control in the right place but I can't find a method will which give me this.
Is it possible to disable cursor moving from cell to cell in datagridview?
View 5 RepliesI have a Datagridview called DgvReturns. which contains two fields,
1) Yes - checkbox (boolean)and
2) Received Date - textbox (DateTime)..
What I want to do at run time is that when a user Checks the Yes checkbox Received Date is populated with the current Datetime.
In cellEndEdit event I need current cell editedFormatedvalue ( well it is done) now my question is can we get the old value of the cell in this event or have to handle some other event for this means let I have a cell in which current value is abc and when I edit it it become def now I want to get both the values in cell end edit event ( or any else ) but finally I have to perform task on cellendedit
View 1 RepliesI have a datagridview and it has 8 columns as textboxcolumns. I am handling their cell validation with cellValidating event.
My question is that if cell validation fails for 3rd column of the datagridview then the focus should move from 3rd column to 1st column of the datagridview. How can i do this?
I have tried datagridview.column(0).selected = true, when validation for 3rd column fails, but this is not working. Focus still moves to the next cell. I can stop the focus to the current cell with e.cancel=true but i want it to move to the very first cell of the datagridview.
I have a datagridview and it has 8 columns as textboxcolumns. I am handling their cell validation with cellValidating event. My question is that if cell validation fails for 3rd column of the datagridview then the focus should move from 3rd column to 1st column of the datagridview. How can i do this?I have tried datagridview.column(0).selected = true, when validation for 3rd column fails, but this is not working. Focus still moves to the next cell. I can stop the focus to the current cell with e.cancel=true but i want it to move to the very first cell of the datagridview.
View 13 RepliesI have a DataGridView where Cell_Validating is being done. I have a Cancel button on my form that allows the user to exit out of the DataGridView changes. The problem is that if a cell was currently flagged as in error, I cannot exit and remove columns from the DataGridView. I get the following error: Operation did not succeed because the program cannot commit or quit a cell value change. Is there a way to cancel the validation once the focus has been removed from the DataGridView? Here is my Cell_Validating
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I am not attacking this in the correct manner. See this code snippet ' Where dgv is the form DataGridView
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I'm getting the error on the following line of code: dr(y) = ds.Tables("Original").Rows(y).Item(i)I got the piece of code from the following website: [URL]..I think it's because there is no row at position 17... I wonder why... but I'm not sure how to include a piece of code where it checks to see if the row or column exists. How do I check to see if the row/column exists? It's probably really simple, brain isn't working properly at the moment unfortunately.
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in my form, I have a DataGridView and TreeView apart from other controls. Now, the data shown in the DataGridView is also displayed in the TreeView. What I need doing is that when a node in the TreeView is selected, the corresponding row in the DataGridView needs getting selected for further action.I used some logic to determine the DataGridView row. But, I am unable to select the row. When I use the DataGridView.Row(index).Selected function, the row is selected, however, the row index does not change.
View 2 RepliesI was wondering if there is a way to keep the same scroll position in a datagrid view as the app jumps around to various rows (driven by the user selecting different timestamps or address). After the jump happens, the horizontal slider moves all the way to the right, but I want it at the same position as before the jump (or at lease go all the way to the left).
I have tried numerous things (datatable.AcceptChanges(), etc) but haven't been able to figure it out yet.
I am now using a datagridview that uses just 1 col and 1 row, but is set such that it has a large display width to display a lot of graphics.
The horizontal scroll bar is active to help me view all the data, but the scroll bar defaults to the LHS.
How can I make it default to the RHS?Additionally, when I move the scroll bar, the displayed data seems to get corrupted - do I have to re-paint the graphics every time the scroll bar position is changed?
I have just found that if a DataGridView image column's size (height & width - in pixels) is smaller than the image's original size (in my case all images are exactly 180 x 180 pixels) at the time the cell is populated then the image is automatically being converted to a lower resolution I assume to fit the image completely within the size of the cell). How can I stop the automatic scaling of the image?
The image below show the same file displayed twice, both at 60x60 pixels ('Thumbnail' column) and a blowup of the image (PictureBox populated via the CellMouseEnter event) to it's right. You'll notice the resolution of the first blowup is far less the the second. so, what made the difference in the resolution of the blowups is? In the second blowup's case I'd first stretched the image column's width to ~180 pixels and set the row height to match (via the ColumnWidthChanged event) then populated the DataGridView then stretched the image column to 60 pixels (its minimum).
What I am trying to do is sort a datagridview and remove a row from its sorted position to the 1st row.
The problem I am experiencing is as follows:
in the source below, when the code runs "MeanRow" is populated with what is required. As soon as Rows.Remove() executes, the MeanRow datarow is lost. Why would this be if I'm declaring a new variable and simply setting it?
Code:
MeanRow = r
TabGrid(dgv.Name).Datatable.Rows.Remove(r)
Code:
Private Sub dgv_Sorted(ByVal sender As Object, ByVal e As EventArgs)
Dim MeanRow As DataRow
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I am working DataGridView in vb.net08.The intresting task is ,When i move the Horizontal Scrollbar in DataGridView from Left to Right ,the First two Columns should be stable and moving starts from 3rd Column.Means If i moved at end of the right side but the first two columns should be visible. When i move the scroll bar the first two columns should not be disterb.Is there any property like Scroll bar position should be starts ??I tried the " FirstDisplayedScrollingColumnIndex" property but it only starts the Scrollbar from giving column index after moving the scrollbar the first two columns are moving into left side.
View 2 RepliesI'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
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On one of my forms i have a datagridview binded to an Access database. It displays only first and last names of my customers in a datagridview.What i want to do now is, when i double-click on one of the customers another form will open and display details for this customer (detailed view - textboxes).
What i have accomplished so far is that when i double-click on a customer in datagridview a form opens with details (linked to the same binding source as datagridview). But the problem is that it always opens the first record even if i dobule-click second or third in datagridview.I don't know how to bind these textboxes with current datagridview position?
I have a form and in that form is a datagridview listing information from a table in a database. The datagrid is setup as read only and the user is unable to move the columns around. The purpose of the datagrid is to allow the user to select entire records and press a menu button that does some action on them. To make it easier to use the very first column in an unbound data column that I fill with a number representing the row count so 1,2,3,4.... this makes it easier for the user to count how many rows he has selected.
The problem is that the unbound column moves to the last column in the datagrid at random times.This only happens in development not after the application has been deployed. Its annoying because lets say I go in to add a label or change a menu item on the form that has nothing to do with the datagrid I have to make sure that the unbound column hasn't moved.Has anyone else had this problem mixing bound and unbound columns in a datagridview.
I wish to have a list selection inside a cell of it. like when the cursor is placed in a particular cell and the user hits 'Tab' button in keyboard a list of names & no should be listed and they have to select a particular name, click a particular row in the list form, which in turn needs to fill the cell with the name value.m
View 5 RepliesThere are 3 columns(Count,Item,Price) in datagridview which is bound to a datasource. The count is 1 by default and it should increment by 1 when i click on a button,so the count would be 2 if i click button again
View 3 RepliesHow can I get the value of the first cell of the row of the selected cell or selected row in a datagridview?
View 5 Repliesi have a datagridview which i populate of a dB. i have 3 columns on the dgv Account ID, Account Type and Notes. i created an add record button, that enables the user to add records. Account ID is a numerator in the dB, and i would like to automatically add 1 to the numerator. however i can't get the value of the last cell in the last row. for now i am using
Dim RowCount As Integer = Me.grdAccountTypes.RowCount - 1
Dim AccountID As Integer = grdAccountTypes.Item(0, RowCount).Value
MessageBox.Show(AccountID)
How to do that no one cell is selected in DataGridView at first moment? (There are some controls in my form before the DataGridView and I don't want that any element of DataGridView is selected when the form is loaded).
View 2 RepliesI have a datagridview which have a ComboBoxCell, ComboBox is bound to data,, I want to use it as Traditional ComboBox,, I mean I want to display its Item (from display members) on the base of its value.
For example:
When I do this
Datagridview1.CurrentRow.Cells(4).value = 4 'Cell 4 is the DatagridviewComboBoxCell
It gives me the error that
"DatagridviewComboBoxCell.value is not valid",
But I want that this combobox should Select And Display the item which value is 4.
