public void FindChildControl_IndexTooGreat()
{
ThreadRunner.RunInSTA(delegate
{
DependencyObjectExtensionsTestVisual visual = new DependencyObjectExtensionsTestVisual();
RenderUtility.RenderVisual(visual);
TextBox tb = visual.FindChildControl<TextBox>(4);
Assert.IsNull(tb);
});
}
public void FindChildControl_FindNonExistentControl()
{
ThreadRunner.RunInSTA(delegate
{
DependencyObjectExtensionsTestVisual visual = new DependencyObjectExtensionsTestVisual();
RenderUtility.RenderVisual(visual);
//Attempt to find first, implicit
TabControl tc = visual.FindChildControl<TabControl>();
Assert.IsNull(tc);
//Attempt to find first, explicit
tc = visual.FindChildControl<TabControl>(0);
Assert.IsNull(tc);
//Attempt to find other than first
tc = visual.FindChildControl<TabControl>(2);
Assert.IsNull(tc);
});
}
public void FindChildControl_IndexLessThanZero()
{
ThreadRunner.RunInSTA(delegate
{
DependencyObjectExtensionsTestVisual visual = new DependencyObjectExtensionsTestVisual();
RenderUtility.RenderVisual(visual);
TextBox tb = visual.FindChildControl<TextBox>(-1);
Assert.IsTrue(tb != null && tb.Text == "TextBox 1");
});
}
public void FindChildControl_FindFirst()
{
ThreadRunner.RunInSTA(delegate
{
DependencyObjectExtensionsTestVisual visual = new DependencyObjectExtensionsTestVisual();
RenderUtility.RenderVisual(visual);
//Assume first element
TextBox tb = visual.FindChildControl<TextBox>();
Assert.IsTrue(tb != null && tb.Text == "TextBox 1");
//Explicitly findfirst element
tb = visual.FindChildControl<TextBox>(0);
Assert.IsTrue(tb != null && tb.Text == "TextBox 1");
});
}