我有Form1的申请,即注册表格,Form2是实际申请。我需要在注册应用程序时,不再打开Form1而不仅仅是Form2。 我将此代码从vb.net转换为c#,它在窗体应用程序中运行良好,但我遇到了WPF应用程序的问题 - 双**行。我是WPF的初学者。请问有人帮帮我吗?
public Form1()
{
InitializeComponent();
//Added to support default instance behavour in C#
if (defaultInstance == null)
defaultInstance = this;
}
#region Default Instance
private static Form1 defaultInstance;
public static Form1 Default
{
get
{
if (defaultInstance == null)
{
defaultInstance = new Form1();
**defaultInstance.FormClosed += new FormClosedEventHandler(defaultInstance_FormClosed);**
}
return defaultInstance;
}
}
static void defaultInstance_FormClosed(object sender, FormClosedEventArgs e)
{
defaultInstance = null;
}
#endregion //Default Instance
答案 0 :(得分:0)
谢谢大家,我找到了解决方案。如果有人需要它:
行:
defaultInstance.FormClosed += new FormClosedEventHandler(defaultInstance_FormClosed);
替换为:
defaultInstance.Closed += new EventHandler(defaultInstance_WindowClosed);
和行:
static void defaultInstance_FormClosed(object sender, FormClosedEventArgs e)
替换为:
static void defaultInstance_WindowClosed(object sender, EventArgs e)
当然,Form1应该替换为真正的WPF窗口。
就我而言,Form1 =验证。