SaveFileDialog有一个用于此目的的属性：使用Silverlight的DefaultFileName或使用.NET的FileName

您问题中的（不可编译的）代码将变为：

  private void buttonSave_Click(object sender, EventArgs e) { SaveFileDialog mySaveFileDialog = new SaveFileDialog(); //Silverlight mySaveFileDialog.DefaultFileName = myDataGridView.SelectedCells[2].Value.ToString(); //.NET mySaveFileDialog.FileName = myDataGridView.SelectedCells[2].Value.ToString(); } 

问题是你需要使用：

 myDataGridView.SelectedCells[0].Value.ToString(); 

代替

 myDataGridView.SelectedCells[2].Value.ToString(); 

直到你不用鼠标或任何东西选择3个或更多细胞。 您可以索引[2]

 private void buttonSave_Click(object sender, EventArgs e) { SaveFileDialog saveFile = new SaveFileDialog(); saveFile.FileName = myDataGridView.SelectedCells[0].Value.ToString(); saveFile.ShowDialog(); } 

这对你有用吗？

您的代码应该采用以下方式：

 private void buttonSave_Click(object sender, EventArgs e) { SaveFileDialog saveFile = new SaveFileDialog(); saveFile.FileName = myDataGridView.SelectedCells[2].Value.ToString(); saveFile.ShowDialog(); } 

使用FileName但在显示对话框之前设置文件名。

请在简单的WinForm应用程序中尝试：

  static void Main() { var saveFile = new SaveFileDialog(); saveFile.FileName = "myfile.txt"; saveFile.ShowDialog(); string fileName = saveFile.FileName ; MessageBox.Show(fileName); } 

有用！

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 public Bitmap MemoryImage; public void GetPrintArea( Panel pn1) { MemoryImage = new Bitmap(panel13.Width, pn1.Height); pn1.DrawToBitmap(MemoryImage, new Rectangle(0, 0, pn1.Width, pn1.Height)); } protected override void OnPaint(PaintEventArgs e) { if (MemoryImage != null) { e.Graphics.DrawImage(MemoryImage, 0, 0); base.OnPaint(e); } } void printdoc1_PrintPage(object sender, PrintPageEventArgs e) { Rectangle pagearea = e.PageBounds; e.Graphics.DrawImage(MemoryImage, (pagearea.Width / 2) - (this.panel13.Width / 2), this.panel13.Location.Y); } Bitmap bmp = new Bitmap(MemoryImage.Width, MemoryImage.Height); panel13.DrawToBitmap(bmp, panel13.Bounds); saveFileDialog1.ShowDialog(); saveFileDialog1.Title = "Save"; saveFileDialog1.Filter = "JPeg Image|*.jpg|Bitmap Image|*.bmp|Gif Image|*.gif"; bmp.Save(saveFileDialog1.FileName);