vfp编辑框使用说明英语

vfp编辑框使用说明英语

VFP Edit Box Usage Guide.

Introduction.

The edit box is a common control that allows users to enter and view text. It can be used to collect data from users, such as names, addresses, or phone numbers. Edit boxes can also be used to display information, such as the results of a search or the status of a process.

Using the Edit Box Control.

To add an edit box to your form, drag the Edit Box control from the Toolbox onto the form. The edit box will appear as a rectangular box on the form. You can resize the edit box by dragging its borders.

To set the properties of an edit box, right-click on the edit box and select Properties from the menu. The

Properties dialog box will appear. The Properties dialog box contains a number of settings that you can use to customize the appearance and behavior of the edit box.

Edit Box Properties.

The following are some of the most common edit box properties:

Text: The text that appears in the edit box.

MaxLength: The maximum number of characters that can be entered into the edit box.

PasswordChar: The character that is displayed instead of the actual characters entered into the edit box.

Enabled: Whether the edit box is enabled or disabled.

Visible: Whether the edit box is visible or hidden.

TabIndex: The tab order of the edit box.

Tag: A user-defined value that can be used to store additional information about the edit box.

Events.

Edit boxes can respond to a number of events, such as the following:

Click: The edit box is clicked.

Change: The text in the edit box is changed.

KeyPress: A key is pressed while the edit box has focus.

GotFocus: The edit box receives focus.

LostFocus: The edit box loses focus.

You can handle events by writing code in the event procedures for the edit box. For example, the following

code handles the Click event for an edit box:

vfp.

Private Sub EditBox1_Click()。

MsgBox("The edit box was clicked.")。

End Sub.

Example.

The following is an example of how to use an edit box to collect data from a user:

vfp.

Private Sub Command1_Click()。

Dim strName As String.

' Get the text from the edit box.

strName = EditBox1.Text.

' Display the name in a message box.

MsgBox("Hello, " & strName & "!")。

End Sub.

In this example, the Command1_Click() event procedure is executed when the user clicks the Command1 button. The event procedure gets the text from the EditBox1 edit box and then displays the name in a message box.

Tips.

Here are a few tips for using edit boxes:

Use the MaxLength property to limit the amount of text that can be entered into an edit box.

Use the PasswordChar property to hide the actual