Guard.ArgumentNotNullOrEmpty(String, String) Method

Ensures that a specific string argument is not a null reference, and is not an empty string.

Namespace: DevExpress.ExpressApp.Utils

Assembly: DevExpress.ExpressApp.v23.2.dll

NuGet Package: DevExpress.ExpressApp

Declaration

C#

public static void ArgumentNotNullOrEmpty(
    string argumentValue,
    string argumentName
)

VB.NET

Public Shared Sub ArgumentNotNullOrEmpty(
    argumentValue As String,
    argumentName As String
)

Parameters

Name	Type	Description
argumentValue	String	A string holding the value of the argument to check.
argumentName	String	A string holding the name of the argument to check.

Remarks

If the specified string is a null reference of an empty string, an exception is thrown.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the ArgumentNotNullOrEmpty(String, String) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

xaf-how-to-use-the-file-attachment-module-with-a-legacy-database/CS/CustomFileDataSolution.Module/BusinessObjects/InplaceFileData.cs#L37

Guard.ArgumentNotNull(stream, "stream");
Guard.ArgumentNotNullOrEmpty(fileName, "fileName");
byte[] array = new byte[stream.Length];

VB.NET

xaf-how-to-use-the-file-attachment-module-with-a-legacy-database/VB/CustomFileDataSolution.Module/BusinessObjects/InplaceFileData.vb#L42

Guard.ArgumentNotNull(stream, "stream")
Guard.ArgumentNotNullOrEmpty(fileName, "fileName")
Dim array(CType(stream.Length, Integer) - 1) As Byte