private int IndexOf(string name, bool error)
{
// exact case matching has already be done by the caller
// Get existing doublet
Doublet d = (Doublet)columnNameCount [name];
if (d != null)
{
if (d.count == 1)
{
// There's only one
// return index of the column from the only column name of the doublet
return(base.List.IndexOf(columnFromName [d.columnNames [0]]));
}
else if (d.count > 1 && error)
{
// there's more than one, exception!
throw new ArgumentException("There is no match for '" + name + "' in the same case and there are multiple matches in different case.");
}
else
{
return(-1);
}
}
return(-1);
}
internal void UnregisterName(string name)
{
if (columnFromName.Contains(name))
{
columnFromName.Remove(name);
}
// Get the existing doublet
Doublet d = (Doublet)columnNameCount [name];
if (d != null)
{
// decrease reference count
d.count--;
d.columnNames.Remove(name);
// remove doublet if no more references
if (d.count == 0)
{
columnNameCount.Remove(name);
}
}
if (name.StartsWith(ColumnPrefix) && name == MakeName(defaultColumnIndex - 1))
{
do
{
defaultColumnIndex--;
} while (!Contains(MakeName(defaultColumnIndex - 1)) && defaultColumnIndex > 1);
}
}
internal void RegisterName(string name, DataColumn column)
{
if (columnFromName.Contains(name))
{
throw new DuplicateNameException("A DataColumn named '" + name + "' already belongs to this DataTable.");
}
columnFromName[name] = column;
// Get existing doublet
Doublet d = (Doublet)columnNameCount[name];
if (d != null)
{
// Add reference count
d.count++;
// Add a new name
d.columnNames.Add(name);
}
else
{
// no existing doublet
// create one
d = new Doublet(1, name);
columnNameCount[name] = d;
}
if (name.StartsWith("Column") && name == MakeName(defaultColumnIndex + 1))
{
do
{
defaultColumnIndex++;
}while (Contains(MakeName(defaultColumnIndex + 1)));
}
}
internal void RegisterName(string name, DataColumn column)
{
try
{
columnFromName.Add(name, column);
}
catch (ArgumentException)
{
throw new DuplicateNameException("A DataColumn named '" + name + "' already belongs to this DataTable.");
}
// Get existing doublet
Doublet d = (Doublet)columnNameCount [name];
if (d != null)
{
// Add reference count
d.count++;
// Add a new name
d.columnNames.Add(name);
}
else
{
// no existing doublet
// create one
d = new Doublet(1, name);
columnNameCount [name] = d;
}
#if NET_2_0
if (name.Length <= ColumnPrefix.Length || !name.StartsWith(ColumnPrefix, StringComparison.Ordinal))
{
return;
}
#else
if (name.Length <= ColumnPrefix.Length || !name.StartsWith(ColumnPrefix))
{
return;
}
#endif
if (name == MakeName(defaultColumnIndex + 1))
{
do
{
defaultColumnIndex++;
}while (Contains(MakeName(defaultColumnIndex + 1)));
}
}
internal void RegisterName (string name, DataColumn column)
{
try {
columnFromName.Add (name, column);
} catch (ArgumentException) {
throw new DuplicateNameException ("A DataColumn named '" + name + "' already belongs to this DataTable.");
}
// Get existing doublet
Doublet d = (Doublet) columnNameCount [name];
if (d != null) {
// Add reference count
d.count++;
// Add a new name
d.columnNames.Add (name);
} else {
// no existing doublet
// create one
d = new Doublet (1, name);
columnNameCount [name] = d;
}
if (name.Length <= ColumnPrefix.Length || !name.StartsWith (ColumnPrefix, StringComparison.Ordinal))
return;
if (name == MakeName (defaultColumnIndex + 1)) {
do {
defaultColumnIndex++;
} while (Contains (MakeName (defaultColumnIndex + 1)));
}
}