Matrix<T>.EnsureWritableUnchecked Method

public void EnsureWritableUnchecked(
	int row,
	int column
)

Public Sub EnsureWritableUnchecked ( 
	row As Integer,
	column As Integer
)

public:
void EnsureWritableUnchecked(
	int row, 
	int column
)

member EnsureWritableUnchecked : 
        row : int * 
        column : int -> unit 

Parameters

row  Int32

The zero-based row index.

column  Int32

The zero-based column index.

public void EnsureWritableUnchecked(
	int startRow,
	int endRow,
	int startColumn,
	int endColumn
)

Public Sub EnsureWritableUnchecked ( 
	startRow As Integer,
	endRow As Integer,
	startColumn As Integer,
	endColumn As Integer
)

public:
void EnsureWritableUnchecked(
	int startRow, 
	int endRow, 
	int startColumn, 
	int endColumn
)

member EnsureWritableUnchecked : 
        startRow : int * 
        endRow : int * 
        startColumn : int * 
        endColumn : int -> unit 

Parameters

startRow  Int32

The zero-based first row, included in the region.

endRow  Int32

The zero-based last row, included in the region.

startColumn  Int32

The zero-based first column, included in the region.

endColumn  Int32

The zero-based last column, included in the region.

Both endpoints are included and are assumed valid. No bounds, ordering, or range validation is performed; invalid input has unspecified behavior.

A valid empty footprint succeeds for a mutable matrix without preparing or detaching storage. A valid empty footprint on a read-only matrix remains nonwritable.

Base preparation establishes value mutability and copy-on-write ownership. Representation overrides may reject compact intrinsic fixed geometry. Dynamic safe unchecked assignments can still fail after earlier mutations; use IsElementWritable(Int32, Int32) for an exact positional permission query.

Reference