重载的构造函数c＃

Question

我有1个命名空间（DXApplication5）和2个类。我正在尝试用类刷新gridview。我在下面的代码中做错了什么？ Thx提前，

  

错误：最佳重载方法匹配   ＆＃39; DXApplication5.grid_refresh.grid_refresh（DXApplication5.Form1）＆＃39;具有   一些无效的论点

     

参数1：无法转换为＆＃39; DevExpress.XtraEditors.XtraForm＆＃39;至   ＆＃39; DXApplication5.Form1＆＃39;

public class grid_refresh
{
    public DXApplication5.Form1 frm1;

    public grid_refresh()
    {
        //Default Constructor   
    }

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

//从另一个班级打电话

 DXApplication5.grid_refresh gr = new grid_refresh(frm1);

Answer 1

问题在于，您传递的frm1是DevExpress.XtraEditors.XtraForm的实例，而不是DXApplication5.Form1。

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

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

解决方案2：将frm1设为DXApplication5.Form1的实例。