在窗体上画一个名为CommonDialog1的通用对话框,一个名称为Command1的命令按钮。要求单击命令按钮时,打开一个保存文件的通用对话框窗口。该窗口的标题为“Save”,默认文件名为“SaveFile",在“文件类型”栏中显示“*.txt”。能够满足上述要求的程序是 ______ 。
A.Private Sub Command1_ Click()CommonDialog1. FileName = "SaveFile"CommonDialog1. Filter = "All Files | *.* |*.txt *.txt| *.doc| *.doc"CommonDialog1. Filterlndex = 2CommonDialog1. DialogTitle = "Save"CommonDialog1. Action = 2 End Sub
B.Private Sub Command1_Click()CommonDialog1. FileName = "SaveFile"CommonDialog1. Filter = "All Files |*.* | *.txt|*.txt|*.doc|*.doc"CommonDialog1. Filterlndex = 1CommonDialog1. DialogTitle = "Save"CommonDialog1. Action = 2 End Sub
C.Private Sub Command1_ Click()CommonDialog1. FileName = "Save"CommonDialog1. Filter = "All Files |%* |*.txt|*.txt|*.doc|*.doc"CommonDialog1. Filterlndex = 2CommonDialog1. DialogTitle = "Save"CommonDialog1. Action = 2 End Sub
D.Private Sub Command1_ Click()CommonDialog1. FileName = "SaveFile"CommonDialog1. Filter = "All Files |*.*|*.txt|*.txt|*.doc|*.doc"CommonDialog1. Filterlndex = 1CommonDialog1. DialogTitle = "Save".CommonDialog1. Action = 1 End Sub