C# Control ctsp = con as ToolStripMenuItem;
RT错误2无法通过引用转换、装箱转换、取消装箱转换、包装转换或null类型转换将类型“System.Windows.Forms.Control”转换为“System.Wi...
RT
错误 2 无法通过引用转换、装箱转换、取消装箱转换、包装转换或 null 类型转换将类型“System.Windows.Forms.Control”转换为“System.Windows.Forms.ToolStripMenuItem”
如何解决,求大神 展开
错误 2 无法通过引用转换、装箱转换、取消装箱转换、包装转换或 null 类型转换将类型“System.Windows.Forms.Control”转换为“System.Windows.Forms.ToolStripMenuItem”
如何解决,求大神 展开
展开全部
System.Windows.Forms.ToolStripMenuItem类继承层次结构
System.Object
System.MarshalByRefObject
System.ComponentModel.Component
System.Windows.Forms.ToolStripItem
System.Windows.Forms.ToolStripDropDownItem
System.Windows.Forms.ToolStripMenuItem
System.Windows.Forms.Control 类继承层次结构
System.Object
System.MarshalByRefObject
System.ComponentModel.Component
System.Windows.Forms.Control
ToolStripMenuItem不继承自System.Windows.Forms.Control,它们确实无法互相转换啊,
System.Object
System.MarshalByRefObject
System.ComponentModel.Component
System.Windows.Forms.ToolStripItem
System.Windows.Forms.ToolStripDropDownItem
System.Windows.Forms.ToolStripMenuItem
System.Windows.Forms.Control 类继承层次结构
System.Object
System.MarshalByRefObject
System.ComponentModel.Component
System.Windows.Forms.Control
ToolStripMenuItem不继承自System.Windows.Forms.Control,它们确实无法互相转换啊,
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