Multiple selection using checkbox (web style)

Question Comments

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Added By: Marc Roussel at: 10/11/2012 5:59:00 AM    

Hmmm how do I use this class ?

Added By: You Logic at: 10/16/2012 4:16:54 AM    

When I select a row via code, the check box is not checked. How can I do this!?

Added By: Piotr Christ at: 2/8/2013 4:13:11 AM    

I had the same problem as You Logic ! How select row (with checkbox) from code ?

Added By: (no info) at: 11/25/2013 2:23:24 PM    

While this is a very nice implementation there is a problem with the code. Because you have defined selection *in the CheckMarkSelection.cs" as an ArrayList it is next to impossible to get at any values contained within each of the actual selected rows from the grid. Let's say one needs to obtain two of the values within the row...one is a string and one is an integer...how do you get the values out? There are no extension methods associated with "selection" that would allow you to enumerate the data lets say using linq or even simply doing somethin like: DataRowView theRow = (DataRowView)this.selection.GetSelectedRow(i); What happens is there is a cast error that occurs due to the generic types within the ArrayList. Granted this is necessary as we have an unknown group of column objects and values. There needs to be a built in method to access the individual values in the selected rows from "selection". I have tried 12 different methods to extract them and still a Cast error occurs.

Added By: Dave Smith 6 at: 3/4/2016 2:15:24 AM    After implementing this class the column does not show, not sure what I'm doing wrong.

In the constructor of my form  I call  new GridCheckMarksSelection(gridViewSearchInventory);

and then in the form load i bind to my grid Added By: Sasha (DevExpress Support) at: 3/4/2016 6:20:43 AM    

Hello Dave,
I've created a separate ticket on your behalf: GridControl - The check box column is not shown when using a class from the E1271: Multiple selection using checkbox (web style) example .
We will update it shortly.

Added By: Jacobo Amselem at: 4/14/2016 3:35:49 AM    Hello
How can I modify View_Click() to invert group row selection when clicking the group checkbox ONLY?
Current implementation inverts selection when clicking anywhere in the group row.

Thank you Added By: Alisher (DevExpress Support) at: 4/14/2016 5:05:29 AM    

Hello,

I've created a separate ticket on your behalf (T367815: How to invert group row selection when clicking the group checkbox only?). It has been placed in our processing queue and will be answered shortly.

Added By: Jacobo Amselem at: 4/22/2016 5:08:26 AM    Hello again,
How could I modify this sample so the check column is the very first column when AlignGroup SummaryInGroupRow = True?

I think this is related, but it's still confusing for me: https://www.devexpress.com/support/center/Question/Details/T365937#comment-e1c23ee5-92fd-4fd3-a2e3-b487a566d095

Thank you Added By: Alisher (DevExpress Support) at: 4/25/2016 5:18:54 AM    

Hi Jacobo,

The AlignGroupSummaryInGroupRow option is available starting with version 15.2 of our components. Therefore I think that you are using the latest version of our products in your project. However, the functionality implemented in this example can be used out of the box in the mentioned version. Set the GridView's OptionsSelection.MultiSelect property to True and the OptionsSelection.MultiSelectMode property to CheckBoxRowSelect to enable it.
Would you please clarify why you are still using this example to achieve this functionality?

As for the issue with incorrect painting of column headers, we are aware of it and have already fixed it. Please take a look at the The Grid doesn't paint correctly either the column header or the cell value if AlignGroupSummaryInGroupRow is set ticket for more information.

Added By: Jacobo Amselem at: 4/25/2016 5:42:49 AM    Hi Alisher
Yes I'm in the latest version of your components, and I'm aware of the CheckboxRowSelect option.
However my original issue is the one described in : https://www.devexpress.com/Support/Center/Question/Details/T294110
(selection checkboxes are cleared when the grid is filtered).  The solution to that issue sug gests to use the sample shown in this page to achieve checkbox column+filtering persistence so here I am.

My issue now is that when enabling AlignGroupSummaryInGroupRow the checkbox is shown after the grouped columns and I'd like to show it before. I did read the issue: https://www.devexpress.com/support/center/Question/Details/T365937
but it still unclear to me how can I proceed.  Can you give some guidance?
thank you


Added By: Alisher (DevExpress Support) at: 4/26/2016 5:40:29 AM    

Hi Jacobo,

Thank you for the clarification.

At present setting the AlignGroupSummaryInGroupRow property forces the Grid to display fixed columns after grouped columns. I don't see an easy way to overcome this behavior. I have created a separate ticket (GridControl - Setting the AlignGroupSummaryInGroupRow forces the Grid to display fixed columns after grouped columns) and passed it to our developers. We will examine the possibility of placing fixed columns before grouped columns. Please add that ticket to your Favorites to be notified of our progress.

Added By: Bassam Shahtoot 1 at: 11/1/2018 6:00:23 AM    how can add right to left support ? 
when the form set on right to left , the checkbox not appears on group row