In my datagridview , when in click on datagridviewComboBoxColumn to populate its dropdownlist it not show me dropdown list for that i need to click 2 times. at first time it just focus to datagridviewComboBoxColumn and on second click it populate its dropdown. but i want to populate its dropdownlist on single click. please help me out. i am using c#.net (vs 2005)
The usual solution for this behaviour of the DataGridView is to set the EditMode property of the DataGridView to EditOnEnter.
There are some issues around using this approach, in particular that the row header is no longer available for row select. See Microsoft Connect here for more info on that issue.
Related
Recenlty I was searching for option that allow me to had "excel like" filtering in my app that use DataGridView.
So I found something like Advanced DataGridView (https://github.com/davidegironi/advanceddatagridview)
Almost everything is working fine, but I had 2 issues with it:
In the datagirdview I have a column that is checkbox. For each row is allowing user to checking rows that needs to be imported to order in our ERP. But if user select some on checkboxes and next want to filtered list all checkboxes will be in uncheck state. How can I made it working?
In default datagridview column sorting were working fine, after switching to Advanced DataGridView, sorting stoped working but filtering is working fine. How to made both of them working?
I populate DataTable with SQL query and put DataTable in DataGridView.
Thanks #JyothishBhaskaran, yours comment helped me with checkbox issue.
Meanwhile I found solution for last checked box changed to unchecked status. I had to call method datagridview.endedit() on cell click.
But sorting still isn't working at all.
When i checked checkbox and after click "detay"detailsbutton,i need to show me selectedrows details in popUp. I use devexpress aspx. How can i do guys please help me.
My Code
My Page
Refer: ASPxGridView - Get selected rows on the server side
Use the server-side ASPxGridView.GetSelectedFieldValues method to
retrieve selected values of the required column (a key column is the
ASPxGridView.KeyFieldName). Refer to the How to delete the
ASPxGridView's selected rows Code Central example that illustrates
how to use this method.
References
ASPxGridView - How to get selected rows on the server side
ASPxGridView - How to get selected row values on the server side
I have a weird problem with ComboBox Column in DataGridView in WinForm.
When I select the item from ComboBox, the selected value would not be rendered by the ComboBox. I need to click the ComboBox so that the selected value of the ComboBox would be rendered or displayed. If not, the ComboBox would just display empty.
The weird thing is this only happen in my first ComboBox Column in DataGridView.
In other words, this issue is not happening with my Second, Third or etc ComboBox Column in DataGridView.
Any ideas? Could it be a DataGridView bugs?
Thanks for your attention.
Thanks for your attention.
I manage to find the solution for the question that I have asked.
Overview:
I populate rows in DataGridView manually by adding row into DataGridView.
For DataGridViewComboBoxCell object, I use DataSource to populate the Items instead of adding the Items manually to the
ComboBoxCell.
The Problem:
Whenever you select the item in ComboBox, it is unable to render the selected value in the ComboBox. It would only show the value if you click it.
Solution:
It turns out in the code somewhere after I set the DataSource of the DataGridViewComboBoxCell, I called its method, DataGridViewComboBoxCell.Items.Count. This is the source of the weird behaviour.
Somehow, if you have set the ComboBoxCell DataSource, and you call Items.Count method, it would show that weird behaviour.
I should not use Items.Count since I am using DataSource. The Items.Count would always be zero because the DataBinding it's not happened instantly the moment you set the DataSource.
Hopefully this post would help someone else in the future. Thanks.
I'm working with DataGridView in C#. I fill it with a table from database using BindingSource. After filling the DataGridView I need to add a row of checkboxes that should be first in the table, to enable data filtering in future.
I mean: for example after clicking "Load" button I get DataGridView filled with 4 columns of data and the first row should consists of checkboxes.
I confused. I use
DataGridViewCheckBoxCell checkCell = new DataGridViewCheckBoxCell();
SourceDGV.Rows.Add(checkCell);
I mean here:
But after clicking load button it says You can't add rows to databounded DataGridView
Sorry if ecxeption translated wrong, I translated it from Ukrainian.
Any help appreciated.
Am afraid, there is no concept of whole rows to be of some type(checkbox in your case) in DataGridView. It is other way around. You can have whole column to be of checkbox type. You'd use DataGridViewCheckBoxColumn for that.
Showing checkboxes in whole row even makes no sense for me: Assume you have data bounded Person object to the DataGridView. So there will be columns like Name, Age, Address. Now, on what basis you show checkbox in the row? How can a Name be converted to a bool(which is what checkbox needs as a value)?
One workaround I can think of would be, handle custom painting, If First row paint checkboxes over there and manually handle their click events. But am pretty sure it's not gonna be easy.
I am currently using a datagridview in C# that is working correctly.
This datagridview has a checkbox field thats linked too a database, I am requiring all rows in the datagridview to be red until the checkbox is checked. Once the checkbox is checked the row will then turn green.
I am also requiring the checkbox field to be the only field in the datagrid that is not read only, but this isnt crucial at this stage. I hope you can offer me some suggestions.
Using visual studio 2010 in a windows forms application
Refer to CellContentClick event.
Read the cell value when user clicks it. If the checkbox is set then get the row index from event handler and write the following line in event handler.
datagrid.Rows[e.RowIndex].DefaultCellStyle.BackColor = Color.Green;