Creates a sequence by concatenating source sequences until a source sequence completes successfully.

Namespace: System.Linq
Assembly: System.Interactive.Providers (in System.Interactive.Providers.dll)

public static IQueryable<TSource> Catch<TSource>(
	this IQueryProvider provider,
	params IEnumerable<TSource>[] sources
)

Type: System.Linq.IQueryProvider
Query provider.

Type: System.Collections.Generic.IEnumerable<TSource>[]
Source sequences.

Source sequence element type.

Type: IQueryable<TSource>
Sequence that continues to concatenate source sequences while errors occur.

In Visual Basic and C#, you can call this method as an instance method on any object of type IQueryProvider. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

QueryableEx Class
System.Linq Namespace