.Net DataGridView Cell Editable?
Mar 9, 2012
I'm using VB.Net.'m using DataGridView with ColumnType = DataGridViewTextBoxColumn.
I have 3 columns. Column1, Column2, Column3. for example:
Column1 Column2 Column3
1 AA AAA
2 BB EDIT
3 CC CCC
If column3's value = "EDIT", then I need to edit only that cell. Here for example: i need to make the Column3's second cell to be readonly=false.So i cannot make any changes to (1, AA, AAA), (3, CC, CCC) and (2, BB). Need to make changes only EDIT cell.I tried this code. CountR is the row in which EDIT values is there.
[Code]...
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Mar 9, 2012
[Code]...
But this makes every cell in column editable. Is there a way i can make some cells editable in column? If you know how to do it,
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Jun 1, 2011
How to make some columns in datagridview editable and some columns are non-editable in the same datagridview control??
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Aug 15, 2011
i want to listview editable it's possible??
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Jul 15, 2009
we display a decimal(11.25) value in the grid . When we try to edit that cell its displaying only (11).Its not showing the decimal value when we try to edit that cell.
How to format that cell ?
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Apr 24, 2012
I'm sitting in a VB-project and i have a ListView with 3 cells; a checkbox, a name and another text value. I want the last cell to be editable for the user. The second cell is also okay to have editable, no problems at all.
How can i set cells to be editable?[code]...
Any tips how to let the user change the last (or both second and last) cell?
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Jul 28, 2009
I would like to know how to make the cell editable for a gridview. like can type data right into the grid...
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Jul 18, 2011
I am using a DevExpress (10.2) Treelist in my VB.Net project in Visual Studio 2008. I currently have a treelist with TreeList.OptionsBehavior.Editable = True. I have two columns were the first one is AllowEdit = False. The second column I am setting the AllowEdit and ReadOnly dynamically though the action FocusedNodeChanged.
Within the FocusedNodeChange subroutine I check if a specific value is in the row and if so I set it to be editable or non-editable. I am setting it to be editable with[code]...
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Mar 6, 2012
I have an editable DataGrid in a VB WPF application. The DataGrid itself has its SourceUpdated property set to my event handler. 2 of the columns in the grid are editable and have their NotifyOnSourceUpdated flag in the Binding set to True. The event is firing properly, but I can't seem to figure out the best way to determine what has changed. The 2 columns depend on each other in that one of them is an item quantity and the other is a case quantity. If the user changes one of them I want to re-compute the other value and update the grid as well as the binding source. I'm sure there are a number of ways to handle this, but I'm curious what is the best way. I could listen for change event on the datagrid, see what changed, set some variables, and then use those in the SourceUpdated event, but that doesn't seem elegant.
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Nov 23, 2010
I have an editable datagridview that's been databound with dataadapter and datatable, and a normal button on a form. When i edit the dgv's cells and click the save button it fires the datagridview_cellvalidating event and if the cell validation is correct it updates and saves the current record to the datasource. Also, before save it commits change in any cell under editing.But when I use a toolstripbutton to do the same work, though it saves the dgv records but doesn't update the current change i.e. it saves the old records that are being fetched when the dgv was populated first during form load. Also, clicking the toolstripbutton doesn't fire datagridview_cellvalidating, datagridview_rowvalidating etc events.
What it seems to be is it's not commiting the change in any cell under
[Code]...
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Aug 3, 2010
How to make linkcell editable in datagridview.
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Oct 7, 2011
I need to display an two-column editable grid not bound to a database. I took a look at ListView with Mode=Details, but it appears that only cells in the first column can be edited. I then took a look at DataGridView, and am having two issues:
1. When editing a cell, it adds a new row: [url] How can I prevent this?
2. I don't like the grey background and would like the grid to fill the whole space, right and below.
BTW, if you know of a good tutorial on using the DataGridView unbound, I'm interested. [Code]
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Dec 23, 2011
Have 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.
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Dec 23, 2011
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)
[Code].....
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Aug 10, 2010
Is it possible to disable cursor moving from cell to cell in datagridview?
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Jun 4, 2011
I have created an Unbound DataGridView. It has has 4 Columns Name, Last Name, Picture, CheckBox. I would like to do change the checkbox's enabled state true or false (editable or not) at the time I add the row
Not its checked state :) and would also like to change image that is placed in the Image column cell during the add row.
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Jul 1, 2010
I 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.
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Jan 28, 2011
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
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Mar 2, 2009
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.
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Mar 2, 2009
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.
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Nov 6, 2010
I 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
[Code]...
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Apr 30, 2012
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).
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Nov 18, 2010
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
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Jan 15, 2012
There 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
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Jan 18, 2012
How can I get the value of the first cell of the row of the selected cell or selected row in a datagridview?
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Oct 20, 2010
i 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)
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Jan 30, 2012
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).
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May 18, 2012
I 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.
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Jul 5, 2010
After trying to search this forum and looking in 2 different VB 2010 books
I still don't know how to read a DataGridView cell into a variable.
I think the code should look something like this[code]...
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Mar 23, 2011
how to change the Cell Alignment depend on the conditions. If cell value is text then cell alignment should be Left and If cell value is Integer then cell alignment should be Right.
I am going to change the Default Cell Style property then all cell alignments are changing.. But i want to see if cell value is Integer then the value starts from Right Side...
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