Hide The True Value Of Datagridview Cell?
Oct 5, 2009
if there is a property of datagridview that will automatically formats the value of each cell but it will go back into original value before the user edits its data. This is only applicable for double datatype.
example. the value of the cell is 12908.21232311. But the datagrid will show only 12908.2123. And when the user edits the cell, the 12908.2123 will go back to its original form 12908.21232311. And when the user changed the value of 12908.21232311 into 12908.44444444, it will format again into 4 decimal places which is 12908.4444
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Nov 22, 2011
I have a DataGridViewCheckBoxColumn who's column name is "booReadyToReport want to hide all the checkboxes in this column if "bintAnalyteCodeID" doesn't equal the selected value in a combobox on my form. ut I run this bit of code the DataGridView DataError event fires currently, have nothing in the event except an comment. he code seems to work, but I'm new to VB.NET and I'm wondering if this is the correct way to handle thishould I use the CellPainting event?
highlight rows with RBF3
For Each dr As DataGridViewRow In Me.dgvCalculatedResults.Rows
f dr.Cells("bintAnalyteCodeID").Value = Me.cbxAnalyte.SelectedValue Then
[code].....
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Jul 15, 2010
I have a DataGridView and one column has DataGridViewCheckBoxColumn type .The datagrid loads from selected items of a listbox.I need to hide Check box cell in this grid according to the item. It means some items should not have checkbox in that cell(I have the list of those items which should not have checkbox in that cell).
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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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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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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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Feb 11, 2011
Is there any posibilities to hide the highlighted square selection on a datagridview
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Jul 31, 2009
How to hide or remove the empty last row at datagridview?
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Nov 19, 2010
Present i am working on Datagridview. ButtonColumn is one of the Column in the Datagridview table. When Click the button on the first row, the first row should be hide. When Click the button on the Second row, the Second row should be hide....like until the end of the row.
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Nov 30, 2010
i am working Hide or Unhide Rows in the DataGridView. When i click RowHeader the corresponding row is hiding. But i don`t want to hide the RowHeader. The RowHeader should be visible when i click RowHeader, the remaining row should be hide. B`se i want to access the RowHeader again for unhide the row.
I am using the below code for Hide the Row.
Private Sub datagridview1_rowheadermouseclick(ByVal sender As Object, ByVal e As DataGridViewCellMouseEventArgs) Handles DataGridView1.RowHeaderMouseClick
Me.DataGridView1.SelectionMode = DataGridViewSelectionMode.RowHeaderSelect
[Code].....
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Mar 26, 2012
How to hide checked rows in a datagridview in vb.net. I want to show only the records which need to be checked or unchecked.
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Jul 13, 2009
how to hide the gray area of DGV if there are few rows in grid than the actual size of the grid?
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May 10, 2010
I need to hide horizontal scrollbar from datagridview.
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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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Feb 22, 2010
I have 5 columns in my datagridview, I want the ability to hide them, depending on which checkboxes are ticked (I have 4 checkboxes). This can either be as soon as the checkbox changes state or after a button is clicked to reload the dataset/gridview.
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May 6, 2009
Is it possible to add a button column to a datagridview and then remove a select group of these from rows without removing the rows themselves? That is, I want the ability to hide or remove these buttons in certain rows after certain actions have occured. I realized that I could simply delete the rows with these buttons, but I want to keep the data in these rows visible without the user thinking they have to use the buttons. I am assuming that I can also disable the buton in the desired rows as well.
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Feb 2, 2012
I need a help with showing/hiding rows in datagridview by setting the trackbar value. The below example works if there are not too much rows. If there are greater number of rows then after you change a value of trackbar you must wait for a few seconds for the datagridview to redraw and only then you can use trackbar again.Apparently I must use multithreading to achieve what I want: when I use trackbar, datagridview starts to redraw, but if I use trackbar again before datagridview finishes redrawing, it immediately stops redrawing according to previous trackbar value and starts to redraw from the beginning according to current trackbar value. That way trackbar will never be frozzen (stuck, unusable...).I tried with backgroundworker but got error "Cross-thread operation not valid: Control '' accessed from a thread other than the thread it was created on." I have old and slow computer. If you have new and fast computer maybe you wont experience what I'm describing here so try to increase number of added rows in line 'For i As Integer = 1 To 5000' (I added 5000 rows here) - and if you have even older and slower computer than you will have to decrease this value or you will have to wait to long after you drag the thumb in trackbar.
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Oct 27, 2011
I searched for this topic and all the examples are in C# (and they have errors as they will not convert with a C# to VB converter). I am using VB.net 2005 and would like a sample that work for it. I have a loop that goes thru the DataGridView and changes the row color based on a column/cell value from the binded DataTable (shown below). I'd like to add to the loop (where the comment is) and also hide the button for this cell and let the "In Process" show in the cell instead.
Private Sub ColorInProcessItems()
' Color the rows green if they are In Process, red if they are Complete
For Each row As DataGridViewRow In dgvQueue.Rows
[code]....
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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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