OpenXmlPackage.MaxCharactersInPart Property

Definition

Gets a value that indicates the maximum allowable number of characters in an Open XML part. A zero (0) value indicates that there are no limits on the size of the part. A non-zero value specifies the maximum size, in characters.

C#
public long MaxCharactersInPart { get; }

Property Value

Remarks

This property allows you to mitigate denial of service attacks where the attacker submits a package with an extremely large Open XML part. By limiting the size of a part, you can detect the attack and recover reliably.

Applies to

Product Versions
DocumentFormat.OpenXml 2.7.1, 2.7.2, 2.8.0, 2.8.1, 2.9.0, 2.9.1, 2.10.0, 2.10.1, 2.11.0, 2.11.1, 2.11.2, 2.11.3, 2.12.0, 2.12.1, 2.12.2, 2.12.3, 2.13.0, 2.13.1, 2.14.0, 2.15.0, 2.16.0, 2.17.1, 2.18.0, 2.19.0, 2.20.0, 3.0.0, 3.0.1