The InputBox() function is used in VB to display a dialog box, allowing the user to enter a value in the dialog box to be passed back to the program for processing. The function syntax format of InputBox() is as follows:
InputBox(prompt[, title] [, default] [, xpos] [, ypos] [, helpfile, context])
The parameters in the syntax of the InputBox function have the following meanings:
(1) Prompt parameter: This parameter is required. Mainly string expressions that appear in dialog boxes. The maximum length of prompt is approximately 1024 characters, determined by the width of the characters used. If the prompt contains multiple lines, you can use carriage returns (Chr(13)), line feeds (Chr(10)), or a combination of carriage returns and line feeds (Chr(13) & Chr(10)) between the lines. to separate.
(2) Title is optional. Displays the string expression in the title bar of the dialog box. If title is omitted, the application name is placed in the title bar.
(3)Default optional. Displays the string expression in the text box as the default value when no other input is given. If default is omitted, the text box is empty.
(4) Xpos optional. Numeric expressions, appearing in pairs, specify the horizontal distance between the left side of the dialog box and the left side of the screen. If xpos is omitted, the dialog box is centered horizontally.
(5) Ypos optional. Numeric expressions, appearing in pairs, specify the distance between the top edge of the dialog box and the top edge of the screen. If ypos is omitted, the dialog box is placed approximately one-third vertically from the bottom of the screen.
(6) Helpfile optional. String expression that identifies the help file used to provide context-sensitive help for the dialog box. If helpfile is provided, context must also be provided.
(7) Context optional. Numeric expression that is the help context number assigned to a help topic by the author of the help file. If context is provided, helpfile must also be provided.
Things to note:
If both helpfile and context are provided, the user can press F1 to view the help topic corresponding to context. Some host applications, such as Microsoft Excel, automatically add a Help button to the dialog box. If the user clicks OK or presses ENTER, the InputBox function returns the contents of the text box. If the user clicks Cancel, this function returns a zero-length string ().
If you also want to specify parameters other than the first named parameter, you must use an InputBox in the expression. If you want to omit certain positional parameters, you must include the corresponding comma delimiters.
Reference usage:
'The function of the program is to use the inputbox function to input 2 data and then connect them. Use msgbox a & b
Dim a As String, b As String
Private Sub Command1_Click()
a = InputBox(Enter the first data:)
b = InputBox(Enter the second data:)
End Sub
Private Sub Command2_Click()
MsgBox a & b
End Sub