试试此链接.. [ ^ ]

上传文件并将其保存在数据库中：

您可以使用以下代码c＃

Uploading the file and saving it in your database:
You can use the following code c#

private void pdfuploadBtn_Click(object sender, EventArgs e)
        {
            OpenFileDialog Openpdf = new OpenFileDialog();
            Openpdf.Filter = "PDF files|*.pdf|All files|*.*;";
            if (Openpdf.ShowDialog() == DialogResult.OK)
            {
                string pdfLog = Openpdf.FileName.ToString();
                pdfUploadbox.Text = pdfLog;
                axAcroPDF1.src = Openpdf.FileName;
                //pdfUploadbox.Text = pdfLog;
            }
            if (axAcroPDF1.src == null)
            {
                MessageBox.Show("Try new file");
            }
            else { MessageBox.Show("PDF Uploaded"); }

        }