DataSet does not update when I remove a DataRow

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Dear Friends

When I Add a new DataRow or Edit one, DataSet.HasChanges() returns true; But when I remove a row it returns false, so DataSet does not update.

I use this code:

C#

long id = long.Parse(this.ListBox.SelectedValue.ToString());

DataSet.CountryRow row = this.DataSet.Country.FindByID(id);

this.DataSet.Country.RemoveCountryRow(row);

Why it happens? Please help me.

Posted 24-Jul-12 8:44am

WebMaster

Updated 24-Jul-12 8:46am

Nueman

v2

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Nueman 24-Jul-12 14:47pm

Minor corrections

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Trak4Net · Accepted Answer · 2012-07-24T09:07:00

I think you need to use row.Delete()

http://msdn.microsoft.com/en-us/library/system.data.datarow.delete[^]

I don't know if you are using a data adapter to update the source database table or not, but thought I'd add this.
Removing the row from the dataset's datatable will not remove the data from the original source database table, however using the delete method will mark it for deletion, so if you use dataadapter.update(dataset) it will delete the rows from database table that are marked for deletion.