the proper way to detect changes to current row before moving to next row

[GS]

How do I properly detect row change before allowing moving to next row?

I tried using RowLeave .

here is brief descript of the form setup.

I have
ieStringTmpData Setwith regex table connected to a SQL mdf.,
on the form I have a regexDataGridVi ew for the table regex for
navigation and viewing purpose only
also the associated navigator, detail view controls bounded with the
same binding source for editing.

so the current row of the regexDataGridVi ew is shown on the detail view
controls

here is the code for the Rowleave Event
DataRow[] dr = ieStringTmpData Set.Regex.Selec t("", "",
DataViewRowStat e.ModifiedCurre nt);

int irowsChgd = dr.GetUpperBoun d(0) + 1;
if (regexDataGridV iew.IsCurrentRo wDirty | irowsChgd 0)
{
DialogResult dlgReslt = MessageBox.Show ("Save Changes?",
this.Text + " - The row has unsaved changes",
MessageBoxButto ns.YesNo);
if (dlgReslt == DialogResult.Ye s)
{
regexBindingNav igatorSaveItem. PerformClick();
setStatus("Save d change to regex " +
regexNameTextBo x.Text);
}
else
{ //' problem with cancelling change, cancel edit does not
work
regexDataGridVi ew.CancelEdit() ;
ieStringTmpData Set.RejectChang es();
// causes exception later:
ieStringTmpData Set.Regex.Reset ();
setStatus("Chan ge to regex is still pending for " +
irowsChgd + " rows. Please reload to forget change");
}
}
else if (statusLabel.Te xt != "Ready") setStatus("Read y");

Problem: the event tend to delay prompting until 2nd row leave after a row
has been modified
your help to show me the propeway to detect modifcation is much appreciated.
thank you for your time and advice

Btw regexDataGridVi ew.IsCurrentRow Dirty always returns false

[Greg]

On Dec 31, 9:58*am, "GS" <gsmsnews.micro soft.co...@msne ws.Nomail.com>
wrote:

How do I properly detect row change before allowing moving to next row?

I tried using RowLeave .

here is brief descript of the form setup.

*I have
* * ieStringTmpData Setwith regex table connected to a SQL mdf.,
* * on the form I have a regexDataGridVi ew for the table regex for
navigation and viewing purpose only
* * * * also the associated navigator, detail view controls bounded with the
same binding source for editing.

so the current row of the regexDataGridVi ew is shown on the detail view
controls

here is the code for the Rowleave Event
* * DataRow[] dr = ieStringTmpData Set.Regex.Selec t("", "",
* * * * *DataViewRowSta te.ModifiedCurr ent);

* * * * * * int irowsChgd = dr.GetUpperBoun d(0) + 1;
* * * * * * if (regexDataGridV iew.IsCurrentRo wDirty | irowsChgd 0)
* * * * * * {
* * * * * * * * DialogResult dlgReslt = MessageBox.Show ("Save Changes?",
* * * * * * * * * * this.Text + " - The row has unsaved changes",
MessageBoxButto ns.YesNo);
* * * * * * * * if (dlgReslt == DialogResult.Ye s)
* * * * * * * * {
* * * * * * * * * * regexBindingNav igatorSaveItem. PerformClick();
* * * * * * * * * * setStatus("Save d change to regex "+
regexNameTextBo x.Text);
* * * * * * * * }
* * * * * * * * else
* * * * * * * * { * //' problem with cancelling change, cancel edit does not
work
* * * * * * * * * * regexDataGridVi ew.CancelEdit() ;
* * * * * * * * * * ieStringTmpData Set.RejectChang es();
* * * * * * * * * * // causes exception later:
ieStringTmpData Set.Regex.Reset ();
* * * * * * * * * * setStatus("Chan ge to regex is still pending for " +
irowsChgd + " rows. Please reload to forget change");
* * * * * * * * }
* * * * * * }
* * * * * * else if (statusLabel.Te xt != "Ready") setStatus("Read y");

Problem: the event tend to delay prompting until 2nd row leave *after a row
has been modified

your help to show me the propeway to detect modifcation is much appreciated.
thank you for your time and advice

Btw regexDataGridVi ew.IsCurrentRow Dirty always returns false

Try using the RowValidating event. Inside the
DataGridViewCel lCancelEventArg s is the Cancel property for this Row.
Greg

[GS]

uh...., the event seems to be called regardless if the are changes. just
change to a different row, will trigger it to fire until one replies yes
unless I put in a test query for dirty row

then I will face the same problem of missing the prompt on first row change
after a row is modified

"Greg" <gc*****@gmail. comwrote in message
news:8c******** *************** ***********@i12 g2000prf.google groups.com...
On Dec 31, 9:58 am, "GS" <gsmsnews.micro soft.co...@msne ws.Nomail.com>
wrote:

How do I properly detect row change before allowing moving to next row?

I tried using RowLeave .

here is brief descript of the form setup.

I have
ieStringTmpData Setwith regex table connected to a SQL mdf.,
on the form I have a regexDataGridVi ew for the table regex for
navigation and viewing purpose only
also the associated navigator, detail view controls bounded with the
same binding source for editing.

so the current row of the regexDataGridVi ew is shown on the detail view
controls

here is the code for the Rowleave Event
DataRow[] dr = ieStringTmpData Set.Regex.Selec t("", "",
DataViewRowStat e.ModifiedCurre nt);

int irowsChgd = dr.GetUpperBoun d(0) + 1;
if (regexDataGridV iew.IsCurrentRo wDirty | irowsChgd 0)
{
DialogResult dlgReslt = MessageBox.Show ("Save Changes?",
this.Text + " - The row has unsaved changes",
MessageBoxButto ns.YesNo);
if (dlgReslt == DialogResult.Ye s)
{
regexBindingNav igatorSaveItem. PerformClick();
setStatus("Save d change to regex " +
regexNameTextBo x.Text);
}
else
{ //' problem with cancelling change, cancel edit does not
work
regexDataGridVi ew.CancelEdit() ;
ieStringTmpData Set.RejectChang es();
// causes exception later:
ieStringTmpData Set.Regex.Reset ();
setStatus("Chan ge to regex is still pending for " +
irowsChgd + " rows. Please reload to forget change");
}
}
else if (statusLabel.Te xt != "Ready") setStatus("Read y");

Problem: the event tend to delay prompting until 2nd row leave after a row
has been modified

your help to show me the propeway to detect modifcation is much

appreciated.

thank you for your time and advice

Btw regexDataGridVi ew.IsCurrentRow Dirty always returns false

Try using the RowValidating event. Inside the
DataGridViewCel lCancelEventArg s is the Cancel property for this Row.
Greg