[Mono-list] Error on SqlCommandBuilder
Carlos Guzmán Álvarez
carlosga@telefonica.net
Thu, 26 Dec 2002 11:24:41 +0100
Hello:
> Could you please provide references within the .NET Framework documentation, as well as a test case that will validate your statement in .NET? I would suspect that a deleted row could have a current value,
> as long as the deletion hasn't been committed yet. If it has been committed, then it will be skipped when going through the process anyway.
A link to the Microsoft .Net Framework Documentation:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemdataversionnotfoundexceptionclasstopic.asp
I reproduce here the text and the sample:
The following example creates a DataTable with one DataColumn and ten
DataRow objects. After deleting a DataRow, attempting to return the
removed row's current version results in a VersionNotFoundException
exception being thrown.
Sample:
private void DemonstrateVersionNotFoundException(){
// Create a DataTable with one column.
DataTable myTable = new DataTable("myTable");
DataColumn myColumn = new DataColumn("col1");
myTable.Columns.Add(myColumn);
DataRow newRow;
for(int i = 0;i <10;i++){
newRow = myTable.NewRow();
newRow["col1"] = i;
myTable.Rows.Add(newRow);
}
myTable.AcceptChanges();
try{
Console.WriteLine("trying");
DataRow removedRow = myTable.Rows[9];
removedRow.Delete();
removedRow.AcceptChanges();
// Try to get the Current row version.
Console.WriteLine(removedRow[0,DataRowVersion.Current]);
}
catch(System.Data.VersionNotFoundException rowException){
Console.WriteLine("VersionNotFoundException");
Console.WriteLine(rowException.Message);
}
}
--
Best Regards
Carlos Guzmán Álvarez
Vigo-Spain
"No tengo dones especiales.Sólo soy apasionadamente curioso"
Albert Einstein, científico.