C# Form.ClearDataContext方法代码示例

本文整理汇总了C#中System.Windows.Forms.Form.ClearDataContext方法的典型用法代码示例。如果您正苦于以下问题：C# Form.ClearDataContext方法的具体用法？C# Form.ClearDataContext怎么用？C# Form.ClearDataContext使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Windows.Forms.Form的用法示例。

在下文中一共展示了Form.ClearDataContext方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: ChangeInheritedDataContext

        public void ChangeInheritedDataContext()
        {
            using(var form = new Form()) {
                var button1 = new Button();
                var button2 = new Button();
                form.Controls.Add(button1);
                form.Controls.Add(button2);
                form.SetDataContext("test");
                Assert.That(button1.GetDataContext(), Is.EqualTo("test"));
                Assert.That(button1.HasLocalDataContext(), Is.False);
                form.SetDataContext("test2");
                Assert.That(button1.GetDataContext(), Is.EqualTo("test2"));
                Assert.That(button1.HasLocalDataContext(), Is.False);

                button2.SetDataContext("button2");

                form.ClearDataContext();
                Assert.That(button1.GetDataContext(), Is.Null);
                Assert.That(button1.HasLocalDataContext(), Is.False);
                Assert.That(button2.GetDataContext(), Is.EqualTo("button2"));
                Assert.That(button2.HasLocalDataContext(), Is.True);

                form.SetDataContext("test");
                Assert.That(button1.GetDataContext(), Is.EqualTo("test"));
                Assert.That(button1.HasLocalDataContext(), Is.False);
                Assert.That(button2.GetDataContext(), Is.EqualTo("button2"));
                Assert.That(button2.HasLocalDataContext(), Is.True);

                form.Controls.Remove(button1);
                Assert.That(button1.GetDataContext(), Is.Null);
                Assert.That(button1.HasLocalDataContext(), Is.False);
                Assert.That(button2.GetDataContext(), Is.EqualTo("button2"));
                Assert.That(button2.HasLocalDataContext(), Is.True);
                form.Controls.Remove(button2);
                Assert.That(button2.GetDataContext(), Is.EqualTo("button2"));
                Assert.That(button2.HasLocalDataContext(), Is.True);
            }
        }

开发者ID:VitalyTVA，项目名称:WinMVVM，代码行数:38，代码来源:DataContextProviderTests.cs

示例2: MultiLevelDataContextInheritance1

        public void MultiLevelDataContextInheritance1()
        {
            using(var form = new Form()) {
                var panel = new Panel();
                var button1 = new Button();
                button1.SetBinding("Text", new Binding());
                panel.SetBinding("Tag", new Binding());
                panel.Controls.Add(button1);
                form.Controls.Add(panel);
                form.SetDataContext("test");

                Assert.That(button1.Text, Is.EqualTo("test"));
                Assert.That(button1.HasLocalDataContext(), Is.False);
                form.SetDataContext("test2");
                Assert.That(button1.Text, Is.EqualTo("test2"));
                Assert.That(button1.HasLocalDataContext(), Is.False);

                form.ClearDataContext();
                Assert.That(button1.Text, Is.EqualTo(string.Empty));

                form.SetDataContext("test2");
                Assert.That(panel.Tag, Is.EqualTo("test2"));
                Assert.That(button1.Text, Is.EqualTo("test2"));

                panel.SetDataContext("panel");
                Assert.That(panel.Tag, Is.EqualTo("panel"));
                Assert.That(button1.Text, Is.EqualTo("panel"));

                form.ClearDataContext();
                Assert.That(panel.Tag, Is.EqualTo("panel"));
                Assert.That(button1.Text, Is.EqualTo("panel"));

                form.SetDataContext("test2");
                Assert.That(panel.Tag, Is.EqualTo("panel"));
                Assert.That(button1.Text, Is.EqualTo("panel"));

                panel.ClearDataContext();
                Assert.That(panel.Tag, Is.EqualTo("test2"));
                Assert.That(button1.Text, Is.EqualTo("test2"));

                form.Controls.Clear();
                Assert.That(panel.Tag, Is.Null);
                Assert.That(button1.Text, Is.EqualTo(string.Empty));
            }
        }

开发者ID:VitalyTVA，项目名称:WinMVVM，代码行数:45，代码来源:BindingOperationsTests.cs

示例3: MultiLevelDataContextInheritance1

        public void MultiLevelDataContextInheritance1()
        {
            using(var form = new Form()) {
                var panel = new Panel();
                var button1 = new Button();
                var button2 = new Button();
                panel.Controls.Add(button1);
                panel.Controls.Add(button2);
                form.Controls.Add(panel);
                form.SetDataContext("test");

                Assert.That(button1.GetDataContext(), Is.EqualTo("test"));
                Assert.That(button1.HasLocalDataContext(), Is.False);
                form.SetDataContext("test2");
                Assert.That(button1.GetDataContext(), Is.EqualTo("test2"));
                Assert.That(button1.HasLocalDataContext(), Is.False);

                button2.SetDataContext("button2");

                form.ClearDataContext();
                Assert.That(button1.GetDataContext(), Is.Null);
                Assert.That(button1.HasLocalDataContext(), Is.False);
                Assert.That(button2.GetDataContext(), Is.EqualTo("button2"));
                Assert.That(button2.HasLocalDataContext(), Is.True);

                form.SetDataContext("test2");
                Assert.That(button1.GetDataContext(), Is.EqualTo("test2"));
                Assert.That(button2.GetDataContext(), Is.EqualTo("button2"));
                Assert.That(button2.HasLocalDataContext(), Is.True);
                Assert.That(button1.HasLocalDataContext(), Is.False);

                panel.SetDataContext("panel");
                Assert.That(button1.GetDataContext(), Is.EqualTo("panel"));
                Assert.That(button1.HasLocalDataContext(), Is.False);
                Assert.That(button2.GetDataContext(), Is.EqualTo("button2"));
                Assert.That(button2.HasLocalDataContext(), Is.True);

                form.ClearDataContext();
                Assert.That(panel.GetDataContext(), Is.EqualTo("panel"));
                Assert.That(panel.HasLocalDataContext(), Is.True);
                Assert.That(button1.GetDataContext(), Is.EqualTo("panel"));
                Assert.That(button1.HasLocalDataContext(), Is.False);
                Assert.That(button2.GetDataContext(), Is.EqualTo("button2"));
                Assert.That(button2.HasLocalDataContext(), Is.True);

                form.SetDataContext("test2");
                Assert.That(panel.GetDataContext(), Is.EqualTo("panel"));
                Assert.That(panel.HasLocalDataContext(), Is.True);
                Assert.That(button1.GetDataContext(), Is.EqualTo("panel"));
                Assert.That(button1.HasLocalDataContext(), Is.False);
                Assert.That(button2.GetDataContext(), Is.EqualTo("button2"));
                Assert.That(button2.HasLocalDataContext(), Is.True);

                panel.ClearDataContext();
                Assert.That(panel.GetDataContext(), Is.EqualTo("test2"));
                Assert.That(panel.HasLocalDataContext(), Is.False);
                Assert.That(button1.GetDataContext(), Is.EqualTo("test2"));
                Assert.That(button1.HasLocalDataContext(), Is.False);
                Assert.That(button2.GetDataContext(), Is.EqualTo("button2"));
                Assert.That(button2.HasLocalDataContext(), Is.True);

                form.Controls.Clear();
                Assert.That(panel.GetDataContext(), Is.Null);
                Assert.That(panel.HasLocalDataContext(), Is.False);
                Assert.That(button1.GetDataContext(), Is.Null);
                Assert.That(button1.HasLocalDataContext(), Is.False);
                Assert.That(button2.GetDataContext(), Is.EqualTo("button2"));
                Assert.That(button2.HasLocalDataContext(), Is.True);

                panel.SetDataContext("panel");
                Assert.That(button1.GetDataContext(), Is.EqualTo("panel"));
                Assert.That(button1.HasLocalDataContext(), Is.False);
                Assert.That(button2.GetDataContext(), Is.EqualTo("button2"));
                Assert.That(button2.HasLocalDataContext(), Is.True);

                panel.Controls.Clear();
                Assert.That(button1.GetDataContext(), Is.Null);
                Assert.That(button1.HasLocalDataContext(), Is.False);
                Assert.That(button2.GetDataContext(), Is.EqualTo("button2"));
                Assert.That(button2.HasLocalDataContext(), Is.True);
            }
        }

开发者ID:VitalyTVA，项目名称:WinMVVM，代码行数:82，代码来源:DataContextProviderTests.cs

示例4: InheritedDataContextBinding_BindAfterAddToTree

        public void InheritedDataContextBinding_BindAfterAddToTree()
        {
            using(var form = new Form()) {
                var button1 = new Button();
                var button2 = new Button();

                form.Controls.Add(button1);
                form.SetDataContext("test");
                form.Controls.Add(button2);

                button1.SetBinding("Text", new Binding());
                Assert.That(button1.Text, Is.EqualTo("test"));
                Assert.That(button1.HasLocalDataContext(), Is.False);

                button2.SetBinding("Text", new Binding());
                Assert.That(button2.Text, Is.EqualTo("test"));
                Assert.That(button2.HasLocalDataContext(), Is.False);

                form.SetDataContext("test2");
                Assert.That(button1.Text, Is.EqualTo("test2"));
                Assert.That(button1.HasLocalDataContext(), Is.False);
                Assert.That(button2.Text, Is.EqualTo("test2"));
                Assert.That(button2.HasLocalDataContext(), Is.False);

                button1.SetDataContext("button1");
                Assert.That(button1.Text, Is.EqualTo("button1"));
                Assert.That(button1.HasLocalDataContext(), Is.True);
                button2.SetDataContext(null);
                Assert.That(button2.Text, Is.EqualTo(string.Empty));
                Assert.That(button2.HasLocalDataContext(), Is.True);

                button1.ClearDataContext();
                Assert.That(button1.Text, Is.EqualTo("test2"));
                Assert.That(button1.HasLocalDataContext(), Is.False);
                button2.ClearDataContext();
                Assert.That(button2.Text, Is.EqualTo("test2"));
                Assert.That(button2.HasLocalDataContext(), Is.False);

                form.ClearDataContext();
                Assert.That(button1.Text, Is.EqualTo(string.Empty));
                Assert.That(button1.HasLocalDataContext(), Is.False);
                Assert.That(button2.Text, Is.EqualTo(string.Empty));
                Assert.That(button2.HasLocalDataContext(), Is.False);

                button1.SetDataContext("button1");
                Assert.That(button1.Text, Is.EqualTo("button1"));
                Assert.That(button1.HasLocalDataContext(), Is.True);

                form.SetDataContext("test");
                Assert.That(button1.Text, Is.EqualTo("button1"));
                Assert.That(button1.HasLocalDataContext(), Is.True);
                Assert.That(button2.Text, Is.EqualTo("test"));
                Assert.That(button2.HasLocalDataContext(), Is.False);

                form.Controls.Clear();
                Assert.That(button1.Text, Is.EqualTo("button1"));
                Assert.That(button2.Text, Is.EqualTo(string.Empty));
            }
        }

开发者ID:VitalyTVA，项目名称:WinMVVM，代码行数:59，代码来源:BindingOperationsTests.cs

注：本文中的System.Windows.Forms.Form.ClearDataContext方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。