EnumerableExtensionsTryInsert Method (IEnumerable, Int32, Object, Boolean, Boolean)

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Tries to insert the specified item at the specified index to the collection.

Namespace:  KGySoft.CoreLibraries
Assembly:  KGySoft.CoreLibraries (in KGySoft.CoreLibraries.dll) Version: 6.0.1

public static bool TryInsert(
	this IEnumerable collection,
	int index,
	Object? item,
	bool checkReadOnlyAndBounds = true,
	bool throwError = true


Type: System.CollectionsIEnumerable
The collection to insert the item into.
Type: SystemInt32
The zero-based index at which item should be inserted.
Type: SystemObject
The item to be inserted.
checkReadOnlyAndBounds (Optional)
Type: SystemBoolean
 to return  if the collection is read-only or the index is invalid;  to attempt inserting the element without checking the read-only state and bounds. This parameter is optional.
Default value: .
throwError (Optional)
Type: SystemBoolean
 to forward any exception thrown by a found insert method;  to suppress the exceptions thrown by the found insert method and return  on failure. This parameter is optional.
Default value: .

Return Value

Type: Boolean
 if an inserting method could be successfully called;  if such method was not found, or checkReadOnlyAndBounds is  and the collection was read-only, or throwError is  and the inserting method threw an exception.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerable. 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).

The item can be inserted into the collection if that is either an IList or IListT implementation.

Note Note
If it is known that the collection implements only the supported generic IListT interface, then for better performance use the generic TryInsert<T> overload if possible.
See Also