上传图片、word等文件到数据库

        private void button2_Click(object sender, EventArgs e)
        {
            //OpenFileDialog  opf = new OpenFileDialog();
            if (textBox2.Text == "" || comboBox1.Text  == "" || textBox3.Text == "")
            {
                MessageBox.Show("请输入完整的信息！", "提示");
            }
            else
            {
                FileStream fst = new FileStream(textBox2.Text, FileMode.Open, FileAccess.Read);
                byte[] by = new Byte[fst.Length];
                fst.Read(by, 0, (int)fst.Length);

                if (fst.Length == 0)
                {
                    MessageBox.Show("文件为空！", "提示");
                }
                else
                {
                    

                    try
                    {
                        DataSet ds = new DataSet();
                        sqlDataAdapter2.Fill(ds, "content");
                        DataTable MyTable = ds.Tables[0];
                        DataRow MyRow = MyTable.NewRow();
                        MyRow["ProjectName"] = comboBox1.Text;
                        MyRow["Type"] = textBox4.Text;
                        MyRow["Title"] = textBox3.Text;
                        FileStream fs = new FileStream(textBox2.Text, FileMode.OpenOrCreate, FileAccess.Read);
                        byte[] MyData = new byte[fs.Length];
                        fs.Read(MyData, 0, (int)fs.Length);
                        fs.Close();
                        MyRow["ProjectContent"] = MyData;
                        MyTable.Rows.Add(MyRow);
                        sqlDataAdapter2.Update(ds, "content");
                        ds.AcceptChanges();
                        MessageBox.Show("成功存储！", "提示");
                        sqlDataAdapter2.Dispose();
                        this.Close();
                    }
                    catch(Exception ex)
                    {
                        MessageBox.Show(ex.ToString(),"错误提示");
                    }

                }
            }
        }