OpenFileDialog and SaveFileDialog control in VB.NET

OpenFileDialog:

A visual basic OpenFileDialog control allow you to select a file to be opened. OpenFileDialog's are Provided by OpenFileDialog class. If you want to make visible any DialogBox at Runtime you will use the ShowDialog method of the DialogBox. If you are using OpenFileDialog control you have to set some properties like DefaultExt to set the default extension of the file, InitialDirectory to any drive(C,D,E) which should open when you use this control and RestoreDirectory to true.
SaveFileDialog:
A visual basic SaveFileDialog control is used to save a file in a specified location. This control is supported by the SaveFileDialog class. The properties of SaveFileDialog is same as the OpenFileDialog except the one notable property that is OverWritePrompt which shows a warning if you select to a name that is already exist.
Properties of OpenFileDialog and SaveFileDialog control:-

• DefaultExt:- This property allow you to set the default file extension. 
• InitialDirectory:- By this property you will set the InitialDirectory which should open when you use the OpenFileDialog and SaveFileDialog. 
• RestoreDirectory:- If this property set to true it will restores the original directory before closing. 
• FileNames:- This will gives you the file names of all selected files.

• open a new Project.
• Drag a MenuStrip, OpenFileDialog, SaveFileDialog control on form and set the OpenFileDialog's and SaveFileDialog's property DefaultExt to txt InitialDirectory to c: and RestoreDirectory to true. The form will look like below.
  
   
  
  
  
  
  

• Write the below code
  
     Private Sub SaveToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs
      Handles SaveToolStripMenuItem.Click
          SaveFD.ShowDialog()
      End Sub
      Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
      Handles OpenToolStripMenuItem.Click
          OpenFD.ShowDialog()
      End Sub

  Output:-