【转载】Coolite的GridPanle导出Excel

Spiga

Posts - 74, Articles - 0, Comments - 33
Cnblogs
Dashboard
Login

2010-09-21 08:55 by 冷风旋, 109 visits, 收藏, 编辑

代码

public void ToExcel(Coolite.Ext.Web.GridPanel gp, string fileName, DataTable dt, HttpResponse resp)
    {

        resp.Clear();
        resp.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");
        resp.AppendHeader("Content-Disposition", "attachment;filename=" + fileName + ".xls");
        resp.ContentType = "application nd.ms-excel";

        string colHeaders = string.Empty;
        string ls_item = string.Empty;
        int i = 0;
        int cl = gp.ColumnModel.Columns.Count;
        string columns = string.Empty;

        //输出表头
        //取得数据表各列标题，各标题之间以t分割，最后一个列标题后加回车符 
        for (i = 0; i < cl; i++)
        {
            if (i == (cl - 1))//最后一列，加n
            {
                if (!gp.ColumnModel.Columns[i].Hidden)
                {
                    colHeaders += gp.ColumnModel.Columns[i].Header;
                    columns += gp.ColumnModel.Columns[i].DataIndex + ",";
                }
                colHeaders += "\n";
            }
            else
            {
                if (!gp.ColumnModel.Columns[i].Hidden && gp.ColumnModel.Columns[i].ColumnID != "update")
                {
                    colHeaders += gp.ColumnModel.Columns[i].Header + "\t";
                    columns += gp.ColumnModel.Columns[i].DataIndex + ",";
                }
            }
        }
        resp.Write(colHeaders);

        if (columns != string.Empty) columns = columns.Substring(0, columns.LastIndexOf(","));
        string[] columnall = columns.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);

        cl = columnall.Length;

        //逐行处理数据   
        for (int j = 0; j < dt.Rows.Count; j++)
        {
            ls_item += (j + 1).ToString() + "\t";//No.列
            //当前行数据写入HTTP输出流，并且置空ls_item以便下行数据     
            for (i = 0; i < cl; i++)
            {
                if (i == (cl - 1))
                {
                    ls_item += EditString(dt.Rows[j][columnall[i].ToString()].ToString()) + "\n";
                }
                else
                {
                    ls_item += EditString(dt.Rows[j][columnall[i].ToString()].ToString()) + "\t";
                }
            }
            resp.Write(ls_item);
            ls_item = string.Empty;
        }
        Response.Flush();
        resp.End();
    }

    private string EditString(string TextString)//处理字符问题
    {
        if (TextString.IndexOf('\r') != -1)
        {
            TextString = TextString.Replace('\r', ' ');
        }
        if (TextString.IndexOf('\n') != -1)
        {
            TextString = TextString.Replace('\n', ' ');
        }
        if (TextString.IndexOf('\t') != -1)
        {
            TextString = TextString.Replace('\t', ' ');
        }
        if (TextString.IndexOf("'") != -1)
        {
            TextString = TextString.Replace("'", "");
        }

        if (TextString.IndexOf(@"""") != -1)
        {
            TextString = TextString.Replace(@"""", "");
        }
        return TextString;
    }