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dotnet ado.net : Adding rows to table from DataGridView
dataFilesDataSet.tblDeletedOrders.Rows.Add(dr) instead? And what do you mean the code is evaluating to nothing? And are you invoking EndEdit to save the changes to the dataset? Robin S. ------------------------------------- [quoted text, click to view] "Adel Khalil" <adel83k@hotmail.com> wrote in message news:534D21FE-22EF-44A0-881F-76B27CF06DE2@microsoft.com... > hello, am in a bit of a problem.. wonder if anyone can help? > > I got two tables one is tblOrders and the other is tblDeletedOrders > I'm handling the UserDeletingRow to insert the deleted row (order) > into the tblDeletedOrders to sort out some kind archive or log. > > I'm using this code which is evaluating to nothing and after delete I > find the tblDeletedOrders empty. > > private void dgvOrders_UserDeletingRow(object sender, > DataGridViewRowCancelEventArgs e) > { DataRow dr = ((DataRowView)(e.Row.DataBoundItem)).Row; > dataFilesDataSet.tblDeletedOrders.ImportRow(dr); > } > > thanks in advance.
hello, am in a bit of a problem.. wonder if anyone can help?
I got two tables one is tblOrders and the other is tblDeletedOrders I'm handling the UserDeletingRow to insert the deleted row (order) into the tblDeletedOrders to sort out some kind archive or log. I'm using this code which is evaluating to nothing and after delete I find the tblDeletedOrders empty. private void dgvOrders_UserDeletingRow(object sender, DataGridViewRowCancelEventArgs e) { DataRow dr = ((DataRowView)(e.Row.DataBoundItem)).Row; dataFilesDataSet.tblDeletedOrders.ImportRow(dr); } thanks in advance.
[quoted text, click to view] "Adel Khalil" <adel83k@hotmail.com> wrote in message news:F6562F42-A630-4507-A9AE-D842EEA83F6B@microsoft.com... > what I meant by evaluating to nothing is the code runs but nothing > happened, I used import row instead of Add method as the add method > return err This row already belongs to another table. even if I remove > the row from the row collection also used EndEdit(). > > DataRow dr = ((DataRowView)(e.Row.DataBoundItem)).Row; > dataFilesDataSet.tblOrders.Rows.Remove(dr); > dataFilesDataSet.tblDeletedOrders.Rows.Add(dr); > dataFilesDataSet.EndInit(); > > thanks for your reply. > what should I do now ? This code was posted here a couple of days ago by a MSFT in response to another post titled "Move DataRow to other DataTable". //copy rowdata from table1 to table2 dataTable2.Rows.Add(row.ItemArray); //remove rowdata from table1 dataTable1.Rows.Remove(row); Does that work? Robin S.
what I meant by evaluating to nothing is the code runs but nothing happened,
I used import row instead of Add method as the add method return err This row already belongs to another table. even if I remove the row from the row collection also used EndEdit(). DataRow dr = ((DataRowView)(e.Row.DataBoundItem)).Row; dataFilesDataSet.tblOrders.Rows.Remove(dr); dataFilesDataSet.tblDeletedOrders.Rows.Add(dr); dataFilesDataSet.EndInit(); thanks for your reply. what should I do now ?
Hi,
Try this code: DataRow dr = ((DataRowView)(e.Row.DataBoundItem)).Row; dataFilesDataSet.tblOrders.Rows.Remove(dr); Dataset dataFilesDataSet2 = dataFilesDataSet.Copy(); dataFilesDataSet2.tblDeletedOrders.Rows.Add(dr); Thanks and Regards, Manish Bafna. MCP and MCTS. [quoted text, click to view] "Adel Khalil" wrote:
> what I meant by evaluating to nothing is the code runs but nothing happened, > I used import row instead of Add method as the add method return err This > row already belongs to another table. even if I remove the row from the row > collection also used EndEdit(). > > DataRow dr = ((DataRowView)(e.Row.DataBoundItem)).Row; > dataFilesDataSet.tblOrders.Rows.Remove(dr); > dataFilesDataSet.tblDeletedOrders.Rows.Add(dr); > dataFilesDataSet.EndInit(); > > thanks for your reply. > what should I do now ?
Adel,
I am not sure what you want to achieve, however in my idea should your code work if you want to presieve your deleted rows. The datarowstate in the copy stays deleted. It is a copy not a shalow copy in this case. The behaviour you describes is as with a shallowcopy and that is different to show it. This code is working \\\ DataTable dt1 = new DataTable(); dt1.Columns.Add(new DataColumn("DC1")); dt1.Rows.Add(dt1.NewRow()); dt1.Rows[0][0] = "Adel"; DataTable dt2 = dt1.Clone(); dt2.ImportRow(dt1.Rows[0]); dt1.Rows[0].Delete(); /// Be aware that you cannot import an detached (deleted or removed) row. Cor "Adel Khalil" <adel83k@hotmail.com> schreef in bericht news:534D21FE-22EF-44A0-881F-76B27CF06DE2@microsoft.com... [quoted text, click to view] > hello, am in a bit of a problem.. wonder if anyone can help? > > I got two tables one is tblOrders and the other is tblDeletedOrders > I'm handling the UserDeletingRow to insert the deleted row (order) into > the tblDeletedOrders to sort out some kind archive or log. > > I'm using this code which is evaluating to nothing and after delete I find > the tblDeletedOrders empty. > > private void dgvOrders_UserDeletingRow(object sender, > DataGridViewRowCancelEventArgs e) > { DataRow dr = ((DataRowView)(e.Row.DataBoundItem)).Row; > dataFilesDataSet.tblDeletedOrders.ImportRow(dr); > } > > thanks in advance.
Robin,
Be aware that the behaviour from Remove and Delete is very different. "Remove" removes a row from the datatable. "Delete" sets the DataRowState to "deleted", this of course not at rows which has no change or are added in the session. Those are removed with a Delete as well. You can say that Remove is a Delete with an inbuild acceptchanges for that row. Cor "RobinS" <RobinS@NoSpam.yah.none> schreef in bericht news:9PadnQt3-cAtDg3YnZ2dnUVZ_qmpnZ2d@comcast.com... [quoted text, click to view] > > "Adel Khalil" <adel83k@hotmail.com> wrote in message > news:F6562F42-A630-4507-A9AE-D842EEA83F6B@microsoft.com... >> what I meant by evaluating to nothing is the code runs but nothing >> happened, I used import row instead of Add method as the add method >> return err This row already belongs to another table. even if I remove >> the row from the row collection also used EndEdit(). >> >> DataRow dr = ((DataRowView)(e.Row.DataBoundItem)).Row; >> dataFilesDataSet.tblOrders.Rows.Remove(dr); >> dataFilesDataSet.tblDeletedOrders.Rows.Add(dr); >> dataFilesDataSet.EndInit(); >> >> thanks for your reply. >> what should I do now ? > > This code was posted here a couple of days ago by a MSFT in response to > another > post titled "Move DataRow to other DataTable". > > > //copy rowdata from table1 to table2 > dataTable2.Rows.Add(row.ItemArray); > //remove rowdata from table1 > dataTable1.Rows.Remove(row); > > Does that work? > > Robin S. >
doh,
forgot that sentence "no change or" Cor "Cor Ligthert [MVP]" <notmyfirstname@planet.nl> schreef in bericht news:%23TlbUBMKHHA.1064@TK2MSFTNGP04.phx.gbl... [quoted text, click to view] > Robin, > > Be aware that the behaviour from Remove and Delete is very different. > > "Remove" removes a row from the datatable. > "Delete" sets the DataRowState to "deleted", this of course not at rows > which has no change or are added in the session. Those are removed with a > Delete as well. > > You can say that Remove is a Delete with an inbuild acceptchanges for that > row. > > Cor > > "RobinS" <RobinS@NoSpam.yah.none> schreef in bericht > news:9PadnQt3-cAtDg3YnZ2dnUVZ_qmpnZ2d@comcast.com... >> >> "Adel Khalil" <adel83k@hotmail.com> wrote in message >> news:F6562F42-A630-4507-A9AE-D842EEA83F6B@microsoft.com... >>> what I meant by evaluating to nothing is the code runs but nothing >>> happened, I used import row instead of Add method as the add method >>> return err This row already belongs to another table. even if I remove >>> the row from the row collection also used EndEdit(). >>> >>> DataRow dr = ((DataRowView)(e.Row.DataBoundItem)).Row; >>> dataFilesDataSet.tblOrders.Rows.Remove(dr); >>> dataFilesDataSet.tblDeletedOrders.Rows.Add(dr); >>> dataFilesDataSet.EndInit(); >>> >>> thanks for your reply. >>> what should I do now ? >> >> This code was posted here a couple of days ago by a MSFT in response to >> another >> post titled "Move DataRow to other DataTable". >> >> >> //copy rowdata from table1 to table2 >> dataTable2.Rows.Add(row.ItemArray); >> //remove rowdata from table1 >> dataTable1.Rows.Remove(row); >> >> Does that work? >> >> Robin S. >> > >
Thanks for clarifying the difference between Remove and Delete for me.
I appreciate it. Robin S. ------------------------------- [quoted text, click to view] "Cor Ligthert [MVP]" <notmyfirstname@planet.nl> wrote in message news:O%23bKCJMKHHA.5000@TK2MSFTNGP03.phx.gbl... > doh, > > forgot that sentence "no change or" > > Cor > > "Cor Ligthert [MVP]" <notmyfirstname@planet.nl> schreef in bericht > news:%23TlbUBMKHHA.1064@TK2MSFTNGP04.phx.gbl... >> Robin, >> >> Be aware that the behaviour from Remove and Delete is very different. >> >> "Remove" removes a row from the datatable. >> "Delete" sets the DataRowState to "deleted", this of course not at >> rows which has no change or are added in the session. Those are >> removed with a Delete as well. >> >> You can say that Remove is a Delete with an inbuild acceptchanges for >> that row. >> >> Cor >> >> "RobinS" <RobinS@NoSpam.yah.none> schreef in bericht >> news:9PadnQt3-cAtDg3YnZ2dnUVZ_qmpnZ2d@comcast.com... >>> >>> "Adel Khalil" <adel83k@hotmail.com> wrote in message >>> news:F6562F42-A630-4507-A9AE-D842EEA83F6B@microsoft.com... >>>> what I meant by evaluating to nothing is the code runs but nothing >>>> happened, I used import row instead of Add method as the add method >>>> return err This row already belongs to another table. even if I >>>> remove the row from the row collection also used EndEdit(). >>>> >>>> DataRow dr = ((DataRowView)(e.Row.DataBoundItem)).Row; >>>> dataFilesDataSet.tblOrders.Rows.Remove(dr); >>>> dataFilesDataSet.tblDeletedOrders.Rows.Add(dr); >>>> dataFilesDataSet.EndInit(); >>>> >>>> thanks for your reply. >>>> what should I do now ? >>> >>> This code was posted here a couple of days ago by a MSFT in response >>> to another >>> post titled "Move DataRow to other DataTable". >>> >>> >>> //copy rowdata from table1 to table2 >>> dataTable2.Rows.Add(row.ItemArray); >>> //remove rowdata from table1 >>> dataTable1.Rows.Remove(row); >>> >>> Does that work? >>> >>> Robin S. >>> >> >> > >
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