答杨不易呀
既然您已经为WorkbookBeforeClose、WorkbookOpen和WorkbookActivate事件添加了调用该函数的委托,那么您可以在这些事件触发时更新Ribbon的启用状态。以下是一个简单的示例,展示了如何在这些事件中更新Ribbon的启用状态:
首先,在Ribbon代码文件中,添加一个名为`UpdateRibbonEnabledState`的方法,用于更新Ribbon的启用状态:
```csharp
public void UpdateRibbonEnabledState()
{
// 检查是否有打开的Workbook
bool hasOpenWorkbook = Application.Workbooks.Count > 0;
// 更新Ribbon按钮的启用状态
ribbonButton1.Enabled = hasOpenWorkbook;
ribbonButton2.Enabled = hasOpenWorkbook;
// ... 更多的Ribbon控件
}
```
接下来,在您的Add-in代码文件中,为WorkbookBeforeClose、WorkbookOpen和WorkbookActivate事件添加事件处理程序,并在这些事件触发时调用`UpdateRibbonEnabledState`方法:
```csharp
private void ThisAddIn_Startup(object sender, EventArgs e)
{
// 添加事件处理程序
Application.WorkbookBeforeClose += Application_WorkbookBeforeClose;
Application.WorkbookOpen += Application_WorkbookOpen;
Application.WorkbookActivate += Application_WorkbookActivate;
}
private void ThisAddIn_Shutdown(object sender, EventArgs e)
{
// 移除事件处理程序
Application.WorkbookBeforeClose -= Application_WorkbookBeforeClose;
Application.WorkbookOpen -= Application_WorkbookOpen;
Application.WorkbookActivate -= Application_WorkbookActivate;
}
private void Application_WorkbookBeforeClose(Workbook wb, ref bool cancel)
{
// 更新Ribbon启用状态
UpdateRibbonEnabledState();
}
private void Application_WorkbookOpen(Workbook wb)
{
// 更新Ribbon启用状态
UpdateRibbonEnabledState();
}
private void Application_WorkbookActivate(Workbook wb)
{
// 更新Ribbon启用状态
UpdateRibbonEnabledState();
}
```
这样,在事件发生时,您的Ribbon功能将根据Workbook的数量自动启用或禁用。
以上为腾讯混元大模型提供,仅提供参考价值.
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