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PropertyInfo.CanRead **CanRead** As `Boolean` > If `True`, the property is a simple value property or has a Get accessor. > > This property is read-only. > > This example checks the CanRead property before taking an action. > > ``` xojo > Var d As DateTime = DateTime.Now > Var myProperties() As Introspection.PropertyInfo = Introspection.GetType(d).GetProperties > > For Each prop As Introspection.PropertyInfo In myProperties > If prop.CanRead Then > ' take action here > End If > Next > ```

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PropertyInfo.CanWrite **CanWrite** As `Boolean` > If `True`, the property is a simple value property or has a Set accessor. > > This property is read-only. > > This example checks the CanRead property before taking an action. > > ``` xojo > Var d As DateTime = DateTime.Now > Var myProperties() As Introspection.PropertyInfo = Introspection.GetType(d).GetProperties > > For Each prop As Introspection.PropertyInfo In myProperties > If prop.CanWrite Then > ' take action here > End If > Next > ```

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PropertyInfo.IsComputed **IsComputed** As `Boolean` > If `True`, it is a computed property. > > This property is read-only.

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PropertyInfo.IsPrivate **IsPrivate** As `Boolean` > If `True`, the item has Private scope. > > This property is read-only. > > The following example checks the IsPrivate property before taking an action. > > ``` xojo > Var d As DateTime = DateTime.Now > > For Each prop As Introspection.PropertyInfo In Introspection.GetType(d).GetProperties > If prop.IsPrivate Then > ' take an action here.. > End If > Next > ```

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PropertyInfo.IsProtected **IsProtected** As `Boolean` > Is `True`, the item has Protected scope. > > This property is read-only. > > ``` xojo > Var d As DateTime = DateTime.Now > > For Each prop As Introspection.PropertyInfo In Introspection.GetType(d).GetProperties > If prop.IsProtected Then > ' take an action here.. > End If > Next > ```

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PropertyInfo.IsPublic **IsPublic** As `Boolean` > If `True`, the item has Public scope. > > This property is read-only. > > This example checks the IsPublic property before taking an action. > > ``` xojo > Var d As DateTime = DateTime.Now > > For Each prop As Introspection.PropertyInfo In Introspection.GetType(d).GetProperties > If prop.IsPublic Then > ' take an action here.. > End If > Next > ```

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PropertyInfo.IsShared **IsShared** As `Boolean` > If `True`, it is a shared property and does not require a `Self` parameter when called by `Introspection`. > > This property is read-only. > > This example reports whether the properties for the `DateTime` class are shared. > > ``` xojo > Var d As DateTime = DateTime.Now > Var myProperties() As Introspection.PropertyInfo = Introspection.GetType(d).GetProperties > > For Each prop As Introspection.PropertyInfo In myProperties > If prop.CanRead Then > ListBox1.AddRow(prop.IsShared.ToString) > End If > Next > ```

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PropertyInfo.Name **Name** As `String` > The name of the item. This is only the class name. To get the full namespace path, use FullName instead. > > This property is read-only. > > This code gets the list of properties for the passed type instance. > > ``` xojo > Var d As DateTime = DateTime.Now > > For Each prop As Introspection.PropertyInfo In Introspection.GetType(d).GetProperties > ListBox1.AddRow(prop.Name) > Next > ```

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PropertyInfo.PropertyType **PropertyType** As `TypeInfo` > Contains the property's datatype. > > This property is read-only. > > This example gets the data type of each property of the `DateTime` class. > > ``` xojo > Var d As DateTime = DateTime.Now > Var myProperties() As Introspection.PropertyInfo = Introspection.GetType(d).GetProperties > > For Each prop As Introspection.PropertyInfo In myProperties > ListBox1.AddRow(prop.PropertyType.FullName) > Next > ``` ## Method descriptions

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PropertyInfo.GetAttributes **GetAttributes** As `AttributeInfo()` > Returns an array of `AttributeInfo` objects. > > The following gets the attributes of window1. > > ``` xojo > Var myAttributes() As Introspection.AttributeInfo = Introspection.GetType(Window1).GetAttributes > ```

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PropertyInfo.Value **Value**(obj As `Object`) As `Variant` > Returns the value of the property, given an instance of the property's class. ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

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PropertyInfo.Value **Value**(base As `Object`, `Assigns` value As `Variant`) > Sets the value of the property, given an instance of the property's class. If the property is shared, specify Nil for the *base* parameter. > > This example gets and then changes the value to its compacted version: > > ``` xojo > Var json As New JSONItem > Var myProperties() As Introspection.PropertyInfo = Introspection.GetType(json).GetProperties > > For Each p As Introspection.PropertyInfo In myProperties > Select Case p.Name > Case "Compact" > Var value As Boolean = p.Value(json) > > MessageBox("Current Compact value = " + value.ToString) > > ' Toggle Compact > p.Value(json) = Not value > > MessageBox("New Compact value = " + json.Compact.ToString) > End Select > Next > ``` > > To get an array property, you assign the value back to an array. This example uses a class (TestClass that has TestArray() As String with two values. It gets the array values: > > ``` xojo > Var t As New TestClass > > Var ti As Introspection.TypeInfo > ti = Introspection.GetType(t) > > Var p() As Introspection.PropertyInfo > p = ti.GetProperties > > For Each pi As Introspection.PropertyInfo In p > Var pt As Introspection.TypeInfo > pt = pi.PropertyType > > Select Case pi.Name > Case "TestArray" > If pt.IsArray Then > If pi.Value(t).ArrayElementType = 8 Then ' String > Var s() As String > > s = pi.Value(t) > > MessageBox("Array = (" + String.FromArray(s, ",") + ")") > End If > End If > End Select > Next > ``` ## Sample code This example gets the list of properties for the passed type instance. ``` xojo Var d As DateTime = DateTime.Now Var myProperties() As Introspection.PropertyInfo = Introspection.GetType(d).GetProperties For Each prop As Introspection.PropertyInfo In myProperties ListBox1.AddRow(prop.Name) Next ``` ## Compatibility | | | |-----------------------|-----| | **Project Types** | All | | **Operating Systems** | All |

`MemberInfo` parent class; `Introspection` module; `AttributeInfo`, `ConstructorInfo`, `MemberInfo`, `MethodInfo`, `ObjectIterator`, `ParameterInfo`, `TypeInfo` classes; `GetTypeInfo` function.