StringValidatorAttribute.MaxLength Property

Reference

Definition

Namespace:: System.Configuration

Assembly:: System.Configuration.ConfigurationManager.dll

Assembly:: System.Configuration.dll

Package:: System.Configuration.ConfigurationManager v10.0.0-preview.1.25080.5

Source:: StringValidatorAttribute.cs

Source:: StringValidatorAttribute.cs

Source:: StringValidatorAttribute.cs

Source:: StringValidatorAttribute.cs

Source:: StringValidatorAttribute.cs

Source:: StringValidatorAttribute.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets or sets the maximum length allowed for the string to assign to the property.

public:
 property int MaxLength { int get(); void set(int value); };

public int MaxLength { get; set; }

member this.MaxLength : int with get, set

Public Property MaxLength As Integer

Property Value

Int32

An integer that indicates the maximum allowed length for the string to assign to the property.

Exceptions

ArgumentOutOfRangeException

The selected value is less than MinLength.

Examples

The following example shows how to use the MaxLength property.

[ConfigurationProperty("fileName", DefaultValue = "default.txt",
    IsRequired = true, IsKey = false)]
[StringValidator(InvalidCharacters = " ~!@#$%^&*()[]{}/;'\"|\\",
    MinLength = 1, MaxLength = 60)]
public string FileName
{
    get
    {
        return (string)this["fileName"];
    }
    set
    {
        this["fileName"] = value;
    }
}


<ConfigurationProperty("fileName", _
DefaultValue:="default.txt", _
IsRequired:=True, _
IsKey:=False), _
StringValidator( _
InvalidCharacters:=" ~!@#$%^&*()[]{}/;'""|\", _
MinLength:=1, _
MaxLength:=60)> _
Public Property FileName() As String
    Get
        Return CStr(Me("fileName"))
    End Get
    Set(ByVal value As String)
        Me("fileName") = value
    End Set
End Property

Applies to

Produkt	Verzie
.NET	8 (package-provided), 9 (package-provided), 10 (package-provided)
.NET Framework	2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.0 (package-provided)
Windows Desktop	3.0, 3.1, 5, 6, 7, 8, 9, 10

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