c# - 该变量未声明或从未在 System.ComponentModel.Design.Serialization.CodeDomSerializerBase 中分配

Question

我是 C# 的新手，所以如果我提出愚蠢的问题，请原谅...

这是我的问题:

• 我有一个继承自“TabPage”的类“ProtocolTabPage”。
• 我有一个继承自“Panel”的“ControlPanel”。
• 我有一个 ControlPanel 由我的 ProtocolTabPage 实例化。
• 我的两个类都在命名空间“AutoTestProtocols.Interface”中。

在 ProtocolTabPage[Design] 中，我有以下错误:

"The variable 'ProtocolPanel' is either undeclared or was never assigned.

at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.Error(IDesignerSerializationManager manager, String exceptionText, String helpLink) at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSerializationManager manager, String name, CodeExpression expression) at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSerializationManager manager, String name, CodeExpression expression) at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeStatement(IDesignerSerializationManager manager, CodeStatement statement)"

不过，在我的 ProtocolTabPage.Designer 中，我有

[...]
this.ProtocolPanel = new AutoTestProtocols.Interface.ControlPanel();
[...]
this.splitContainer1.Panel2.Controls.Add(this.ProtocolPanel);
[...]
this.ProtocolPanel.AutoScroll = true;
this.ProtocolPanel.Dock = System.Windows.Forms.DockStyle.Fill;
this.ProtocolPanel.Location = new System.Drawing.Point(0, 0);
this.ProtocolPanel.Name = "ProtocolPanel";
this.ProtocolPanel.Size = new System.Drawing.Size(696, 700);
this.ProtocolPanel.TabIndex = 0;
[...]
private AutoTestProtocols.Interface.ControlPanel ProtocolPanel;"

怎么了？

Answer 1

乍一看，您似乎在尝试使用类型名称作为变量名称，通常应该避免这种情况。在您的 ProtocolPanel 实例化中，尝试:

ProtocolPanel myProtocolPanel = new AutoTestProtocols.Interface.ControlPanel();

然后您可以将所有对“This.ProtocolPanel”的调用更改为“myProtocolPanel”。