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Since the Length property of System.String is an Int32, I would guess that that the maximum length would be 2,147,483,647 chars (max Int32 size). If it allowed longer you couldn't check the Length since that would fail.
You can specify the minimum and maximum length of characters for each field when data is being inserted or updated. For character data types, the MinimumLength and MaximumLength properties identify the largest number of bytes that are required in order to store a string.
Definition. Namespace: System. Component Model. Data Annotations. Assembly: Source: StringLengthAttribute.cs. Gets or sets the maximum length of a string. C# Copy. public int MaximumLength { get; } Property Value. Int32. The maximum length a string. Applies to. Collaborate with us on GitHub.
The theoretical capacity of a String maybe 2,147,483,647 (2 Billion), because the Length property of the String returns an int, so the maximum length of a String is Int32.MaxValue (2,147,483,647) characters.
Gets or sets the maximum possible length, in number of characters, of a query string in an HTTP request.
The MaxLength attribute in Entity Framework Core is a Data Annotation Attribute used to specify the maximum allowable length of array or string data allowed in a property. This attribute serves two primary purposes:
The StringLength attribute is applied to a property to specify a maximum number of characters or bytes for the column that the property should map to. The following example specifies that the Title column in the Books table is to be have a maximum length of 150 characters instead of the default which is unlimited:
