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ReadOnlyAttribute.IsReadOnly Property

Gets a value indicating whether the property this attribute is bound to is read-only.

Namespace:  System.ComponentModel
Assembly:  System (in System.dll)

public bool IsReadOnly { get; }

Property Value

Type: System.Boolean
true if the property this attribute is bound to is read-only; false if the property is read/write.

The following code example checks to see whether MyProperty is read-only. First, the code gets the attributes for MyProperty by doing the following:

Then the code sets myAttribute to the value of the ReadOnlyAttribute in the AttributeCollection and checks whether the property is read-only.

// Gets the attributes for the property.
AttributeCollection attributes = 
   TypeDescriptor.GetProperties(this)["MyProperty"].Attributes;

// Checks to see whether the property is read-only.
ReadOnlyAttribute myAttribute = 
   (ReadOnlyAttribute)attributes[typeof(ReadOnlyAttribute)];

if(myAttribute.IsReadOnly) {
   // Insert code here.
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, 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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