该文件没有页面。 [英] The document has no pages.

问题描述

我正在从数据集 file   code-keyword> 首先时间我可以创建 pdf，但 for  secnd  time 它给我这个错误
 
这里 我的代码
 
  首先将改为    
 
 
 
 
 
 
 
 公开 无效电子邮件（）
 {
 尝试 
 {
 emaildata（）; 
  string  userMail = emailname +   @ ksmc .med.sa; 
 使用（StringWriter sw =  new  StringWriter（））
 {
 使用（HtmlTextWriter hw =  new  HtmlTextWriter（sw））
 {
 DetailsView1 .RenderControl（HW）; 
 StringReader sr =  new  StringReader（sw.ToString（））; 
文件pdfDoc = 新文件（PageSize.A4,10f，10f，10f，0f）; 
 HTMLWorker htmlparser =  new  HTMLWorker（pdfDoc）; 
 使用（MemoryStream memoryStream =  new  MemoryStream（））
 {
 PdfWriter.GetInstance（pdfDoc，memoryStream）; 
 pdfDoc.Open（）; 
 htmlparser.Parse（sr）; 
 pdfDoc.Close（）; 
  byte  [] bytes = memoryStream.ToArray（）; 
 memoryStream.Close（）; 
} 
} 
} 
} 
} 
 
 
 
 
 
  public   void  emaildata（）
 {
 SqlCommand cmnd =  new  SqlCommand（  SELECT dbo.Tbl_TechRequest.R_RequestNumber， dbo.Tbl_TechRequest.R_name，FROM _TechRequest WHERE（dbo.Tbl_TechRequest.R_RequestNumber + 
   = @ R_RequestNumber））; 
 cmnd.Connection = con; 
 cmnd.Parameters.Add（  @ R_RequestNumber，SqlDbType.Int）.Value = ID; 
 SqlDataAdapter da =  new  SqlDataAdapter（cmnd）; 
 
 da.Fill（ds）; 
 DetailsView1.DataSource = ds; 
 DetailsView1.DataBind（）; 
} 
 
 
解决方案
 
查看答案 -  文档没有页面 [ ^ ]。
 
 
I am creating Pdf file from dataset for first time i can create pdf but for the secnd time its giving me this error

here is my code

for first tim its going to rendercontrol and for the secnd time its giving me this error






public void Email()
    {
        try
        {
            emaildata();
            string userMail = emailname + "@ksmc.med.sa";
            using (StringWriter sw = new StringWriter())
            {
                using (HtmlTextWriter hw = new HtmlTextWriter(sw))
                {
                    DetailsView1.RenderControl(hw);
                    StringReader sr = new StringReader(sw.ToString());
                    Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 10f, 0f);
                    HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
                    using (MemoryStream memoryStream = new MemoryStream())
                    {
                        PdfWriter.GetInstance(pdfDoc, memoryStream);
                        pdfDoc.Open();
                        htmlparser.Parse(sr);
                        pdfDoc.Close();
                        byte[] bytes = memoryStream.ToArray();
                        memoryStream.Close();
                     }
                 }
           }
        }
}




public void emaildata()
   {
       SqlCommand cmnd = new SqlCommand("SELECT dbo.Tbl_TechRequest.R_RequestNumber, dbo.Tbl_TechRequest.R_name, FROM _TechRequest WHERE  (dbo.Tbl_TechRequest.R_RequestNumber" +
            "   =@R_RequestNumber)");
       cmnd.Connection = con;
       cmnd.Parameters.Add("@R_RequestNumber", SqlDbType.Int).Value = id;
       SqlDataAdapter da = new SqlDataAdapter(cmnd);

       da.Fill(ds);
       DetailsView1.DataSource = ds;
       DetailsView1.DataBind();
   }
解决方案
See the answer - The document has no pages[^].


                        
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