R – Delete selected row from a DataGridView

netwinforms

I have a DataGridView which is bound to a collection of objects.

I want to make a Delete button on a form so a user could delete selected row.

But there is a problem if a new row (the special last row in the grid) is selected.
If I select the new row and then try to click Delete button, the grid loses its focus and changes the selected row! It makes the the last row selected (the one before the new row). So in Delete button handler, there is another row is selected already, not a new row!

How can I solve this problem, other than hiding that special new row (AllowUserToAddRows = false) and making my own "Add" button and code for it?

Best Answer

You could disable the Delete button when an invalid row (i.e. the special new row) is selected

Related Solutions

C# – How to update the GUI from another thread

The simplest way is an anonymous method passed into Label.Invoke:

// Running on the worker thread
string newText = "abc";
form.Label.Invoke((MethodInvoker)delegate {
    // Running on the UI thread
    form.Label.Text = newText;
});
// Back on the worker thread

Notice that Invoke blocks execution until it completes--this is synchronous code. The question doesn't ask about asynchronous code, but there is lots of content on Stack Overflow about writing asynchronous code when you want to learn about it.

.net – how to delete row from datagridview with a delete button

I have a delete button column in my DataGrid with a button for each row that has it's Tag set to the appropriate item. The click handler then retrieves the tag value and deletes that item. This avoids any issues with selection events, etc.

Best Answer

Related Solutions

C# – How to update the GUI from another thread

.net – how to delete row from datagridview with a delete button

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