Sample code for C# Winform program to upload pictures to a specified directory

private void btnUpload_Click(object sender, EventArgs e)
{             
            	OpenFileDialog ofd = new OpenFileDialog();               
           	ofd.Title = "请选择上传的图片";              
            	ofd.Filter = "图片格式|*.jpg";  
            	//设置是否允许多选  
            	ofd.Multiselect = false;  
            
           	 if (ofd.ShowDialog()== System.Windows.Forms.DialogResult.OK)  { 
                	//获得文件的完整路径（包括名字后后缀） 
                	string filePath = ofd.FileName;                 
                	tbImgFile.Text = filePath; 
                
                	int position = filePath.LastIndexOf("\\");                
                	string fileName = filePath.Substring(position+1);                   

                 	File.Copy(ofd.FileName, Application.StartupPath + "\\Upload\\" + fileName);

                        pbImage.ImageLocation = Application.StartupPath + "\\Upload\\" + fileName;
                }            
}