【Vegas原创】页面（图表+table+GridView）导出为excel(07125更新版）

图表+table

protected void Button3_Click(object sender, EventArgs e)

{

Response.Clear();

Response.Buffer = true;

Response.Charset = "GB2312";

Response.AppendHeader("Content-Disposition", "attachment;filename=FileName.xls");

Response.ContentEncoding = System.Text.Encoding.UTF7;

Response.ContentType = "application/ms-excel";//

System.IO.StringWriter oStringWriter = new System.IO.StringWriter();

System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);

//path like http://

string strPath = "select pms_value from code_list where pms_type='chart_path'";

DataSet ds = db.GetDataSet(strPath);

string path = ds.Tables[0].Rows[0][0].ToString();

string imagePath = path + this.DaxonTechChartWeb1.ID + "." + this.DaxonTechChartWeb1.ImageType.ToString();

oHtmlTextWriter.AddAttribute(HtmlTextWriterAttribute.Src, imagePath);

//tableExcel is the Table

tableExcel.RenderControl(oHtmlTextWriter);

Response.Output.Write(oStringWriter.ToString());

Response.Flush();

Response.End();

}

gridview：

    protected void Button_toExcel_Click(object sender, EventArgs e)
    {
        Response.Clear();
        Response.Buffer = true;
        Response.Charset = "GB2312";
        Response.AppendHeader("Content-Disposition", "attachment;filename=FileName.xls");
        // 如果设置为 GetEncoding("GB2312");导出的文件将会出现乱码！！！
        Response.ContentEncoding = System.Text.Encoding.UTF7;
        Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。
        System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
        System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
       //  turn off paging

        GridView1.AllowPaging = false;
        GridView1.Columns[0].Visible = false;
        GridView1.DataBind();
        GridView1.RenderControl(oHtmlTextWriter);
        Response.Output.Write(oStringWriter.ToString());
        Response.Flush();
        Response.End();
        // turn the paging on again
        GridView1.AllowPaging = true;
        GridView1.DataBind();

    }

07-12-5更新版：
因有些chart在前台有加特效之类的，造成HtmlTextWriter在锁定元件上出错。
此就需要RenderBeginTag和RenderEndTag来全部手动写入。

protected void Button3_Click(object sender, EventArgs e)

{

Response.Clear();

Response.Buffer = true;

Response.Charset = "GB2312";

Response.AppendHeader("Content-Disposition", "attachment;filename=FileName.xls");

Response.ContentEncoding = System.Text.Encoding.UTF7;

Response.ContentType = "application/ms-excel";//

System.IO.StringWriter oStringWriter = new System.IO.StringWriter();

System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);

//path

string strPath = "select pms_value from code_list where pms_type='chart_path'";

DataSet ds = db.GetDataSet(strPath);

string path = ds.Tables[0].Rows[0][0].ToString();

string imagePath = path + this.DaxonTechChartWeb1.ID + "." + this.DaxonTechChartWeb1.ImageType.ToString();

//this.DaxonTechChartWeb1.ImagePath = imagePath;

oHtmlTextWriter.RenderBeginTag(HtmlTextWriterTag.Table);

oHtmlTextWriter.AddAttribute(HtmlTextWriterAttribute.Height, this.DaxonTechChartWeb1.Height.Value.ToString());

oHtmlTextWriter.RenderBeginTag(HtmlTextWriterTag.Tr);

oHtmlTextWriter.RenderBeginTag(HtmlTextWriterTag.Td);