using System.IO;
using System.Text;
using System.Windows.Forms;

namespace AllBase
{
    public class OutExcel
    {
        /// <summary>
        /// 保存数据
        /// </summary>
        /// <param name="patch"></param>
        /// <param name="dt"></param>
        /// <returns></returns>
        public static bool SaveFile(string patch, DataGridView dt)
        {
            string temp = "";
            for (int i = 0; i < dt.ColumnCount; i++)
            {
                if (dt.Columns[i].Visible && dt.Columns[i].HeaderText != "删除" && dt.Columns[i].HeaderText != "历史记录")
                    temp += dt.Columns[i].HeaderText + "\t";
            }
            if (!string.IsNullOrEmpty(temp))
                temp += "\r\n";
            try
            {
                if (File.Exists(patch))
                    File.Delete(patch);
                File.WriteAllText(patch, temp, Encoding.Unicode);
                temp = "";
            }
            catch
            {
                return false;
            }
            for (int i = 0; i < dt.RowCount; i++)
            {
                for (int j = 0; j < dt.ColumnCount; j++)
                {
                    if (dt.Columns[j].Visible && dt.Columns[j].HeaderText != "删除" && dt.Columns[j].HeaderText != "历史记录")
                        temp += dt.Rows[i].Cells[j].Value + "\t";
                }
                temp += "\r\n";
                if (temp.Length > 2000)
                {
                    try
                    {
                        File.AppendAllText(patch, temp, Encoding.Unicode);
                        temp = "";
                    }
                    catch
                    {
                        //return false;
                    }
                }
            }
            if (string.IsNullOrEmpty(temp))
                return true;
            try
            {
                File.AppendAllText(patch, temp, Encoding.Unicode);
            }
            catch
            {
                return false;
            }
            return true;
        }

        public static bool SaveFileCheckBox(string patch, DataGridView dt)
        {
            string temp = "";
            for (int i = 0; i < dt.ColumnCount; i++)
            {
                if (dt.Columns[i].HeaderText != "删除" && dt.Columns[i].HeaderText != "全选")
                    temp += dt.Columns[i].HeaderText + "\t";
            }
            if (!string.IsNullOrEmpty(temp))
                temp += "\r\n";
            try
            {
                if (File.Exists(patch))
                    File.Delete(patch);
                File.WriteAllText(patch, temp, Encoding.Unicode);
                temp = "";
            }
            catch
            {
                return false;
            }
            for (int i = 0; i < dt.RowCount; i++)
            {
                if (bool.Parse(dt.Rows[i].Cells["isCheckBoxColumny"].Value.ToString()) == false)
                {
                    continue;
                }
                for (int j = 0; j < dt.ColumnCount; j++)
                {
                    if (dt.Columns[j].HeaderText != "删除" && dt.Columns[j].HeaderText != "全选")
                    {
                        temp += dt.Rows[i].Cells[j].Value + "\t";
                    }
                }
                temp += "\r\n";
                if (temp.Length > 2000)
                {
                    try
                    {
                        File.AppendAllText(patch, temp, Encoding.Unicode);
                        temp = "";
                    }
                    catch
                    {
                        //return false;
                    }
                }
            }
            if (string.IsNullOrEmpty(temp))
                return true;
            try
            {
                File.AppendAllText(patch, temp, Encoding.Unicode);
            }
            catch
            {
                return false;
            }
            return true;
        }
    }
}