C#错误 1 “StudentAmenge.dyyl”不包含采用“1”个参数的构造函数

当我用
private void dataGridView1_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
        {
            {
                dyyl f4 = new dyyl(dataGridView1.CurrentRow);  
                f4.Show();       
            }  
        }
转dyyl 窗口时提示错误 1 “StudentAmenge.dyyl”不包含采用“1”个参数的构造函数
dyyl窗口的代码如下，各位大神这个怎么解决呀，我刚开始学习C#
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Microsoft.Office.Interop.Word;namespace StudentAmenge
{
    public partial class dyyl : Form
    {
        public dyyl()
        {
            InitializeComponent();
            Load += dyyl_Load;
        }
        public DataGridViewRow dgvr; 
        public void dyyl_Load(object sender, EventArgs e)
        {
            object oMissing = System.Reflection.Missing.Value;
            Microsoft.Office.Interop.Word._Application oWord = new Microsoft.Office.Interop.Word.Application();
             oWord.Visible = false;
            object oTemplate = "A://tongbao.dot";
             Microsoft.Office.Interop.Word._Document oDoc = oWord.Documents.Add(ref oTemplate, ref oMissing, ref oMissing, ref oMissing);
             object[] oBookMark = new object[4];
             oBookMark[0] = "wjbh";
             oBookMark[1] = "wjmc";
             oBookMark[2] = "djyh";
             oBookMark[3] = "djsj";
             oDoc.Books.get_Item(ref oBookMark[0]).Range.Text = dgvr.Cells[1].Value.ToString();
             oDoc.Books.get_Item(ref oBookMark[1]).Range.Text = dgvr.Cells[2].Value.ToString(); ;
             oDoc.Books.get_Item(ref oBookMark[2]).Range.Text = UserInfo.UserName;
             oDoc.Books.get_Item(ref oBookMark[3]).Range.Text = DateTime.Today.ToLongDateString();
             SaveFileDialog sfd = new SaveFileDialog();
             sfd.Filter = "Word Document(*.doc)|*.doc";
             sfd.DefaultExt = "Word Document(*.doc)|*.doc";
             if (sfd.ShowDialog() == DialogResult.OK)
             {
                 object filename = sfd.FileName;
 
                 oDoc.SaveAs(ref filename, ref oMissing, ref oMissing, ref oMissing,
                 ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing,
                 ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing,
                 ref oMissing, ref oMissing);
                 oDoc.Close(ref oMissing, ref oMissing, ref oMissing);
                 oWord.Quit(ref oMissing, ref oMissing, ref oMissing);
             }
         }        private void dyyl_Load_1(object sender, EventArgs e)
        {
            this.zb_xsTableAdapter.Fill(this.zb_xsDataSet7.zb_xs);        }
    }
}