GrapeCity.Documents.Pdf.Spec.IPdfDictExt.TryGet

TryGet Method

TryGet<T>(IPdfDict, PdfName, out T, out bool, bool)

Tries to get the value associated with the specified key, Returns true if value exists and can be converted to a T, resolves a PDF reference if needed. Note! The method does not resolve reference if T is IPdfRef, otherwise the method resolves the reference and returns actual object.

Declaration

public static bool TryGet<T>(this IPdfDict dict, PdfName key, out T value, out bool isNull, bool addWarning) where T : IPdfObject

Public Shared Function TryGet(Of T As IPdfObject)(dict As IPdfDict, key As PdfName, ByRef value As T, ByRef isNull As Boolean, addWarning As Boolean) As Boolean

Parameters

Type	Name	Description
IPdfDict	dict	The current dictionary.
PdfName	key	The key identifying the value.
T	value	OUT: The value.
bool	isNull	OUT: Indicates whether the value is PDF null.
bool	addWarning	Indicates whether to add a warning to GrapeCity.Documents.Pdf.GcPdfDocument.ParserLog if errors occur.

Returns

Type	Description
bool	Returns true if no errors occur.

Type Parameters

Name	Description
T

TryGet<T>(IPdfDict, PdfName, out T, bool)

Tries to get the value associated with the specified key, if the value does not exist or cannot be converted to a T returns false.

Declaration

public static bool TryGet<T>(this IPdfDict dict, PdfName key, out T value, bool addWarning = true) where T : IPdfObject

Public Shared Function TryGet(Of T As IPdfObject)(dict As IPdfDict, key As PdfName, ByRef value As T, Optional addWarning As Boolean = True) As Boolean

Parameters

Type	Name	Description
IPdfDict	dict	The current dictionary.
PdfName	key	The key identifying the value.
T	value	OUT: The value.
bool	addWarning	Indicates whether to add a warning to GrapeCity.Documents.Pdf.GcPdfDocument.ParserLog if value at the specified index can't be converted to the `T`.

Returns

Type	Description
bool	true if value exists, false otherwise.

Type Parameters

Name	Description
T