如何让用户写的，他要选定的文件保存在C＃

rivate string GetFilename(string file)

        {

            int length = file.Length - (file.LastIndexOf("\\") + 1) - 4;

            return file.Substring(file.LastIndexOf("\\") + 1, length);

 

        }

 

        private string GetExtension(string file)

        {

            return file.Substring(file.LastIndexOf(".") + 1);

 

        }

 

        private void MsbuildGeneratorBtn_Click(object sender, EventArgs e)

        {

            GenerateMSBuildFile();

 

            if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)

            {

                this.textBox1.Text = folderBrowserDialog1.SelectedPath;

            }

 



 

            

        }

 

        private void GenerateMSBuildFile()

        {

            List<ProjectFile> projectList = new List<ProjectFile>();

            

 



            //WriteBuildFileHeader();

 

            // Add all of the selected files to the template.

            foreach (var projectFile in projectFileList)

            {

                if (projectFile.IsSelected == true)

                {

                    Console.WriteLine(projectFile);

                    projectList.Add(projectFile);

                    //WriteItem(projectFile.FullPath, "C:\\");

 



                }

 

            }