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JavaScriptSerializer.MaxJsonLength Property

Gets or sets the maximum length of JSON strings that are accepted by the JavaScriptSerializer class.

Namespace:  System.Web.Script.Serialization
Assembly:  System.Web.Extensions (in System.Web.Extensions.dll)

public int MaxJsonLength { get; set; }

Property Value

Type: System.Int32
The maximum length of JSON strings. The default is 2097152 characters, which is equivalent to 4 MB of Unicode string data.

ExceptionCondition
ArgumentOutOfRangeException

The property is set to a value that is less than one.

The value of the MaxJsonLength property applies only when you explicitly create an instance of the JavaScriptSerializer class. Use the jsonSerialization element of the configuration file to set the maximum length for the internal serializer instance that is used by the asynchronous communication layer. For more information about the configuration elements for serialization, see How to: Configure ASP.NET Services in Microsoft Ajax.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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