DataGridView BindingList keep sorted

#1

Hi,

I have IList<> of my objects bind to the DataGridView through
BindingList<>. I want to keep my List<> sorted according to my sort
order (i.e programatically set) when the user change add or delete
rows. So I catch some events form DGV and sort my list list. For
adding or deleting rows it works fine.

I have just a problem with event CellValueChanged. When I sort the
list in this event, then I cannot set current cell to the moved
position. I just find the right position, set the dgv.CurrentCell =
dgv[col, row]. But the current row stays in the old position. Where's
the problem? Should I observe another event?

I have one more question, is there any "straight" way to accomplish my
task? I have tried to implement SortableBindingList<> from MSDN
examples, but it does not keep list sorted. It just sorts the list
when the sorting is called programatically.

Thanks

#2

Hmm, it is strange, but the following code solved my problem:

protected override bool ProcessDialogKey(Keys keyData)
{
Keys keyCode = (keyData & Keys.KeyCode);
if (keyCode == Keys.Enter || keyCode == Keys.Tab)
{
return this.ProcessRightKey(keyData);
}
return base.ProcessDialogKey(keyData);
}

protected override bool ProcessDataGridViewKey(KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter || e.KeyCode == Keys.Tab)
{
return this.ProcessRightKey(e.KeyData);
}
return base.ProcessDataGridViewKey(e);
}

--
http://xmedeko.blogspot.com

#3

Hmm, it is strange, but the following code solved my problem:

protected override bool ProcessDialogKey(Keys keyData)
{
Keys keyCode = (keyData & Keys.KeyCode);
if (keyCode == Keys.Enter || keyCode == Keys.Tab)
{
return this.ProcessRightKey(keyData);
}
return base.ProcessDialogKey(keyData);
}

protected override bool ProcessDataGridViewKey(KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter || e.KeyCode == Keys.Tab)
{
return this.ProcessRightKey(e.KeyData);
}
return base.ProcessDataGridViewKey(e);
}

--
http://xmedeko.blogspot.com

#4

Ahh, it was this code plus setting CurrentCell in CellValueChanged
event. So, just to set CurrentCell in CellValueChanged didn't work
without the overriding ProcessDialogKey and ProcessDataGridViewKey.

--
http://xmedeko.blogspot.com

On 6 Srp, 14:28, Ondrej Medek <xmed... (AT) gmail (DOT) com> wrote:

Quote:

Hmm, it is strange, but the following code solved my problem:

* * * * protected override bool ProcessDialogKey(Keys keyData)
* * * * {
* * * * * * Keys keyCode = (keyData & Keys.KeyCode);
* * * * * * if (keyCode == Keys.Enter || keyCode == Keys.Tab)
* * * * * * {
* * * * * * * * return this.ProcessRightKey(keyData);
* * * * * * }
* * * * * * return base.ProcessDialogKey(keyData);
* * * * }

* * * * protected override bool ProcessDataGridViewKey(KeyEventArgs e)
* * * * {
* * * * * * if (e.KeyCode == Keys.Enter || e.KeyCode == Keys.Tab)
* * * * * * {
* * * * * * * * return this.ProcessRightKey(e.KeyData);
* * * * * * }
* * * * * * return base.ProcessDataGridViewKey(e);
* * * * }

#5

Ahh, it was this code plus setting CurrentCell in CellValueChanged
event. So, just to set CurrentCell in CellValueChanged didn't work
without the overriding ProcessDialogKey and ProcessDataGridViewKey.

--
http://xmedeko.blogspot.com

On 6 Srp, 14:28, Ondrej Medek <xmed... (AT) gmail (DOT) com> wrote:

Quote:

Hmm, it is strange, but the following code solved my problem:

* * * * protected override bool ProcessDialogKey(Keys keyData)
* * * * {
* * * * * * Keys keyCode = (keyData & Keys.KeyCode);
* * * * * * if (keyCode == Keys.Enter || keyCode == Keys.Tab)
* * * * * * {
* * * * * * * * return this.ProcessRightKey(keyData);
* * * * * * }
* * * * * * return base.ProcessDialogKey(keyData);
* * * * }

* * * * protected override bool ProcessDataGridViewKey(KeyEventArgs e)
* * * * {
* * * * * * if (e.KeyCode == Keys.Enter || e.KeyCode == Keys.Tab)
* * * * * * {
* * * * * * * * return this.ProcessRightKey(e.KeyData);
* * * * * * }
* * * * * * return base.ProcessDataGridViewKey(e);
* * * * }

#6

Yeah, the main tric is to change Tab to the Right Key, by
ProcessRightKey().

--
http://xmedeko.blogspot.com

On 6 Srp, 14:47, Ondrej Medek <xmed... (AT) gmail (DOT) com> wrote:

Quote:

Ahh, it was this code plus setting CurrentCell in CellValueChanged
event. So, just to set CurrentCell in CellValueChanged didn't work
without the overriding ProcessDialogKey and ProcessDataGridViewKey.

*--http://xmedeko.blogspot.com

On 6 Srp, 14:28, Ondrej Medek <xmed... (AT) gmail (DOT) com> wrote:

Hmm, it is strange, but the following code solved my problem:

* * * * protected override bool ProcessDialogKey(Keys keyData)
* * * * {
* * * * * * Keys keyCode = (keyData & Keys.KeyCode);
* * * * * * if (keyCode == Keys.Enter || keyCode ==Keys.Tab)
* * * * * * {
* * * * * * * * return this.ProcessRightKey(keyData);
* * * * * * }
* * * * * * return base.ProcessDialogKey(keyData);
* * * * }

* * * * protected override bool ProcessDataGridViewKey(KeyEventArgs e)
* * * * {
* * * * * * if (e.KeyCode == Keys.Enter || e.KeyCode == Keys.Tab)
* * * * * * {
* * * * * * * * return this.ProcessRightKey(e.KeyData);
* * * * * * }
* * * * * * return base.ProcessDataGridViewKey(e);
* * * * }

#7

Yeah, the main tric is to change Tab to the Right Key, by
ProcessRightKey().

--
http://xmedeko.blogspot.com

On 6 Srp, 14:47, Ondrej Medek <xmed... (AT) gmail (DOT) com> wrote:

Quote:

Ahh, it was this code plus setting CurrentCell in CellValueChanged
event. So, just to set CurrentCell in CellValueChanged didn't work
without the overriding ProcessDialogKey and ProcessDataGridViewKey.

*--http://xmedeko.blogspot.com

On 6 Srp, 14:28, Ondrej Medek <xmed... (AT) gmail (DOT) com> wrote:

Hmm, it is strange, but the following code solved my problem:

* * * * protected override bool ProcessDialogKey(Keys keyData)
* * * * {
* * * * * * Keys keyCode = (keyData & Keys.KeyCode);
* * * * * * if (keyCode == Keys.Enter || keyCode ==Keys.Tab)
* * * * * * {
* * * * * * * * return this.ProcessRightKey(keyData);
* * * * * * }
* * * * * * return base.ProcessDialogKey(keyData);
* * * * }

* * * * protected override bool ProcessDataGridViewKey(KeyEventArgs e)
* * * * {
* * * * * * if (e.KeyCode == Keys.Enter || e.KeyCode == Keys.Tab)
* * * * * * {
* * * * * * * * return this.ProcessRightKey(e.KeyData);
* * * * * * }
* * * * * * return base.ProcessDataGridViewKey(e);
* * * * }

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DataGridView BindingList keep sorted

Dotnet Framework (WinForms DataBinding) microsoft.public.dotnet.framework.windowsforms.databinding

DataGridView BindingList keep sorted - 07-30-2008 , 08:39 AM

Re: DataGridView BindingList keep sorted - 08-06-2008 , 07:28 AM

Re: DataGridView BindingList keep sorted - 08-06-2008 , 07:28 AM

Re: DataGridView BindingList keep sorted - 08-06-2008 , 07:47 AM

Re: DataGridView BindingList keep sorted - 08-06-2008 , 07:47 AM

Re: DataGridView BindingList keep sorted - 08-07-2008 , 02:49 PM

Re: DataGridView BindingList keep sorted - 08-07-2008 , 02:49 PM