winfrom_根据checkbox勾选项增减dgv字段列

1.效果：

2.点击‘配置’按钮；

private void btn_configure_Click(object sender, EventArgs e)
        {
            string sum = string.Empty;
            string id = string.Empty;
            //将显示在界面上的dgv字段列串联起来，作为字符串传到另外一个‘配置’界面
            DataTable dt = (DataTable)Dgv.DataSource;
            for (int i = 0; i < Dgv.ColumnCount; i++)
            {
                string s = Dgv.Columns[i].HeaderText;
                sum += s + ",";
                if (Dgv.Columns[i].Visible == true)
                {
                    id += i + ",";
                }
            }
            Frm配置 frm = new Frm配置();
            frm.data = sum;
            frm.id = id;
            frm.TransfEvent += frm_TransfEvent;
            frm.ShowDialog();
            BindDGVColumns();22         }

3.在‘配置界面’循环出dgv的字段列名并绑定在‘配置界面’的dgv上，并对字段列判断是否需要checked；

 public partial class Frm配置 : Form
    {
        public delegate void TransfDelegate(String value);
        public event TransfDelegate TransfEvent;
        public Frm配置()
        {
            InitializeComponent();
        }
        public string data { get; set; }
        public string id { get; set; }
        private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            string sum = string.Empty;
            for (int i = 0; i < dgv.Rows.Count; i++) {
                if ((bool)dgv.Rows[i].Cells[0].EditedFormattedValue == true) {
                    string s =Convert.ToString(dgv.Rows[i].Cells[1].Value);
                    sum += s + ",";
                }
            }
            TransfEvent(sum);
        }

        private void Frm配置_Load(object sender, EventArgs e)
        {
            string[] s = data.Split(',');
26             for (int j = 0; j < s.Length; j++)
            {
                string name = s[j].ToString();
                if (name != "") {
                         // 首先 声明一个 DataGridViewRow 对象 （即要添加的行）
                    DataGridViewRow dr = new DataGridViewRow();
                    //设置要添加行的列
                    DataGridViewCheckBoxCell check = new DataGridViewCheckBoxCell();
                    DataGridViewTextBoxCell text = new DataGridViewTextBoxCell();
                    dr.Cells.Add(check);
                    dr.Cells.Add(text);
                    //设置列的值
                 
                    //将声明的行添加到dataGridView1 中
                    dgv.Rows.Add(dr);
                    dgv.Rows[j].Cells[0].Value = false;
                    dgv.Rows[j].Cells[1].Value = name;
                }    
            }
            string[] idsum = id.Split(',');
            for (int i = 0; i < idsum.Length; i++)
            {
                string ids = idsum[i].ToString();
                if (ids != "") {
                    int id = Convert.ToInt32(ids);
                    dgv.Rows[id].Cells[0].Value = true;
                }              
            }
        }
    }

4.根据‘配置界面’穿过来的字符串，循环显示字段列在dgv上面

        public int id;
        public static string name;
        private void BindDGVColumns()
        {
            for (int j = 0; j < Dgv.ColumnCount; j++)
            {
                Dgv.Columns[j].Visible = false;
            }
            string[] s = name.Split(',');
            for (int i = 0; i <s.Length; i++)
            {
                bool falg = false;
                string name = s[i].ToString();               
                if (name != "")
                {
                    for (int j = 0; j < Dgv.ColumnCount; j++)
                    { 
                        id = j;
                        string dgvcname = Dgv.Columns[j].HeaderText;
                        if (name == dgvcname)
                        {
                            falg = true;
                            break;
                        }
                    }
                    if (falg == true)
                    {
                        Dgv.Columns[id].Visible = true;
                    }
                    
                }
          }           
   }