// (c) Copyright Microsoft Corporation.
// This source is subject to the Microsoft Public License (Ms-PL).
// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
// All other rights reserved.
using System.Reflection;
using System.Windows.Controls.Data.Test.DataClasses;
using System.Windows.Controls.Test;
using Microsoft.VisualStudio.TestTools.UnitTesting;
namespace System.Windows.Controls.Data.Test{
public partial class DataGrid_DependencyProperties_TestClass
{
[TestMethod]
[Description("Verify Dependency Property: (object) DataGrid.SelectedItem.")]
public void SelectedItem()
{
Type propertyType = typeof(object);
bool expectGet = true;
bool expectSet = true;
bool hasSideEffects = true;
DataGrid control = new DataGrid();
Assert.IsNotNull(control);
// Verify Dependency Property Property member
FieldInfo fieldInfo = typeof(DataGrid).GetField("SelectedItemProperty", BindingFlags.Static | BindingFlags.Public);
Assert.AreEqual(typeof(DependencyProperty), fieldInfo.FieldType, "DataGrid.SelectedItemProperty not expected type 'DependencyProperty'.");
// Verify Dependency Property Property's value type
DependencyProperty property = fieldInfo.GetValue(null) as DependencyProperty;
Assert.IsNotNull(property);
//
// Verify Dependency Property CLR property member
PropertyInfo propertyInfo = typeof(DataGrid).GetProperty("SelectedItem", BindingFlags.Instance | BindingFlags.Public);
Assert.IsNotNull(propertyInfo, "Expected CLR property DataGrid.SelectedItem does not exist.");
Assert.AreEqual(propertyType, propertyInfo.PropertyType, "DataGrid.SelectedItem not expected type 'object'.");
// Verify getter/setter access
Assert.AreEqual(expectGet, propertyInfo.CanRead, "Unexpected value for propertyInfo.CanRead.");
Assert.AreEqual(expectSet, propertyInfo.CanWrite, "Unexpected value for propertyInfo.CanWrite.");
// Verify that we set what we get
if (expectSet) // if expectSet == false, this block can be removed
{
CustomerList list = new CustomerList();
Assert.IsTrue(list.Count > 3, "CustomerList has too few items for this test.");
Common.AssertExpectedException(DataGridError.DataGrid.ItemIsNotContainedInTheItemsSource("dataItem"),
delegate
{
control.SelectedItems.Add(list[2]);
}
);
control.ItemsSource = list;
//
control.SelectedItem = list[0];
Assert.AreEqual(list[0], control.SelectedItem);
Assert.AreNotEqual(list[1], control.SelectedItem);
control.SelectedItem = list[3];
Assert.AreEqual(list[3], control.SelectedItem);
control.SelectedItem = list[2];
Assert.AreEqual(list[2], control.SelectedItem);
}
// Verify Dependency Property callback
if (hasSideEffects)
{
MethodInfo methodInfo = typeof(DataGrid).GetMethod("OnSelectedItemPropertyChanged", BindingFlags.Static | BindingFlags.NonPublic);
Assert.IsNotNull(methodInfo, "Expected DataGrid.SelectedItem to have static, non-public side-effect callback 'OnSelectedItemPropertyChanged'.");
//
}
else
{
MethodInfo methodInfo = typeof(DataGrid).GetMethod("OnSelectedItemPropertyChanged", BindingFlags.Static | BindingFlags.NonPublic);
Assert.IsNull(methodInfo, "Expected DataGrid.SelectedItem NOT to have static side-effect callback 'OnSelectedItemPropertyChanged'.");
}
}
}
}
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