private void button1_Click(object sender, EventArgs e)
{
TestCheckBox frm = new TestCheckBox();
//将子窗体设置非最高层，非顶级控件
frm.TopLevel = false;
frm.WindowState = FormWindowState.Maximized;
//去掉窗体边框
frm.FormBorderStyle = FormBorderStyle.None;
//指定子窗体显示的容器
frm.Parent = this.panel1;
frm.Show();
}
public void CheckBox_RaiseAutomationEvent_Invoke_Success()
{
using var checkBox = new TestCheckBox();
Assert.False(checkBox.IsHandleCreated);
var accessibleObject = (SubCheckBoxAccessibleObject)checkBox.AccessibilityObject;
Assert.Equal(0, accessibleObject.RaiseAutomationEventCallsCount);
Assert.Equal(0, accessibleObject.RaiseAutomationPropertyChangedEventCallsCount);
checkBox.Checked = true;
Assert.Equal(1, accessibleObject.RaiseAutomationEventCallsCount);
Assert.Equal(1, accessibleObject.RaiseAutomationPropertyChangedEventCallsCount);
Assert.False(checkBox.IsHandleCreated);
}
public void CheckBox_RaiseAutomationEvent_Invoke_Success()
{
using var checkBox = new TestCheckBox();
Assert.False(checkBox.IsHandleCreated);
var accessibleObject = (SubCheckBoxAccessibleObject)checkBox.AccessibilityObject;
Assert.Equal(0, accessibleObject.RaiseAutomationEventCallsCount);
Assert.Equal(0, accessibleObject.RaiseAutomationPropertyChangedEventCallsCount);
checkBox.Checked = true;
Assert.Equal(1, accessibleObject.RaiseAutomationEventCallsCount);
Assert.Equal(1, accessibleObject.RaiseAutomationPropertyChangedEventCallsCount);
// TODO: ControlAccessibleObject shouldn't force handle creation, tracked in https://github.com/dotnet/winforms/issues/3062
Assert.True(checkBox.IsHandleCreated);
}