在usercontrol构造函数中传递参数 [英] passing arguments in usercontrol constructor
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问题描述
我需要将true参数传递给用户控件构造函数吗?
Main.cs
I need to pass the "true" argument to user control constructor?
Main.cs
UserControl uc = (UserControl)Page.LoadControl(typeof(CallLogControl), new object[] { true });
错误:调用目标引发了异常。
我收到此错误,如何解决?
USerControl.ascx.cs:
Error: Exception has been thrown by the target of an invocation.
I''m getting this error, how to resolve it?
USerControl.ascx.cs:
public CallLogControl(bool isCurrentCall)
{
}
推荐答案
您永远不会自己实例化用户控件。页面框架为您做到了这一点。因此,如果您在施工期间必须将某些属性设置为true,则流程为:
1.拥有IsCurrentCall <等公共财产/ code>
2.在必须添加控件的aspx标记中执行以下操作:
You will never be instantiating a user control by yourself. The page framework does that for you. So if you must have some property set as true during the construction, the process would be:
1. Have a public property likeIsCurrentCall
2. In the aspx markup where you must have added the control do this:
<uc1:CallLogControlID="CallLogControl1" runat="server" IsCurrentCall="true"></uc1:CallLogControl>
这样这个p在创建控件时将设置roperty。
This way this property will be set when your control is getting created.
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