c# - 重载构造函数 C#

Question

我有 1 个命名空间 (DXApplication5) 和 2 个类。我正在尝试用一个类刷新 gridview。下面这段代码我做错了什么？提前致谢，

Errors:The best overloaded method match for 'DXApplication5.grid_refresh.grid_refresh(DXApplication5.Form1)' has some invalid arguments

Argument 1: cannot convert from 'DevExpress.XtraEditors.XtraForm' to 'DXApplication5.Form1'

public class grid_refresh
{
    public DXApplication5.Form1 frm1;

    public grid_refresh()
    {
        //Default Constructor   
    }

    public grid_refresh(DXApplication5.Form1 frm1)
    {
       frm1.gcStudent.Refresh();
    }        
}

//从另一个类调用

 DXApplication5.grid_refresh gr = new grid_refresh(frm1);

Answer 1

问题是 frm1你传递的是 DevExpress.XtraEditors.XtraForm 的一个实例, 不是 DXApplication5.Form1 .

解决方案 1:编写一个接受 DevExpress.XtraEditors.XtraForm 的构造函数作为参数。

 public grid_refresh(DevExpress.XtraEditors.XtraForm frm1)
 {
       ...
 }  

解决方案 2:制作 frm1成为 DXApplication5.Form1 的实例.