AF SDK Reference

PISystem.FileMaxLength Property

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PISystem.FileMaxLength Property

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Last UpdatedNov 18, 2025
2 minute read

The maximum allowed file size for an AFFile.

Namespace: OSIsoft.AF
Assembly: OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 3.1.1.1182

Syntax

public int FileMaxLength { get; }

Public ReadOnly Property FileMaxLength As Integer
	Get

Dim instance As PISystem
Dim value As Integer

value = instance.FileMaxLength

public:
property int FileMaxLength {
	int get ();
}

member FileMaxLength : int with get

Property Value

Type: Int32
Returns the maximum allowed file size for an AFFile in megabytes. If this returns a value less than or equal to zero, then all files are blocked.

Remarks

This value can be used to validate user input when uploading files to the PISystem. This validation settings can be modified using the SetFileOptions(PISystem, IListString, Int32) method or using the AFDiag utility.

Version Information

AFSDK

Supported in: 3.1.1, 3.1.0, 3.0.2, 3.0.1, 3.0.0, 2.10.11, 2.10.5, 2.10.0, 2.10, 2.9.5, 2.9, 2.8.5, 2.8

AF SDK Reference