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The main content of this article is to explain "what is the extension of the form file". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Now let the editor to take you to learn "what is the extension of the form file"!

The extension of the form file is ".frm". The saved space property is divided into two parts, one can be represented by a string and stored in a file with the extension Frm; the other part cannot be represented by a string, it is stored in a binary form file with the same name as Frm but with the extension Frx.

The operating environment of this tutorial: windows7 system, Dell G3 computer.

VB specifies that the extension of the form file is .frm.

In a project folder, a project file with a .vbp extension and a source file with a .SCC extension are included in addition to the form file.

The form file is the form you see when you run the program, and the saved space properties are divided into two parts.

Some of the information can be represented by strings, such as strings, numbers, etc., which can be stored in a file with the extension Frm; the other part cannot be represented by a string, such as pictures, which are stored in a binary form file with the same name as Frm but with the extension Frx.

Extended data:

Common attribut

The common properties of text boxes are described below.

(1) Text attribute

Sets the text content displayed in the control. Its usage syntax is as follows:

Text1.Text [= string]

(2) MaxLength attribute

Sets whether there is a limit to the length of the string entered in the text box. The default value is 0, which means that the length of the string in the single-line text box is only limited by operating system memory; if set to a number greater than 0, it represents the maximum number of characters that can be entered.

(3) MultiLine attribute

Sets whether the text box displays text in multiple lines. Displayed as multiline text when set to True, single-line when set to False (default), and truncated beyond the width of the text box. Its usage syntax is as follows:

Text1.MultiLine [= True or False]

(4) PasswordChar attribute

Sets whether the characters typed by the user are displayed in the control. If this property is set to a character, only that character is displayed in the text box, regardless of the value of the Text property. In addition, for this property to be valid, the MultiLine property must be set to False.

(5) ScrollBars attribute

Sets whether the text box has a vertical or horizontal scroll bar. Its usage syntax is as follows:

Text1.ScrollBars [= value]

The "value" can be 0pm 1pm 2pm 3.

0 (default) indicates that there is no scroll bar

1 means there is a horizontal scroll bar

2 indicates that there is a vertical scroll bar

3 indicates that there are horizontal and vertical scroll bars.

In addition, for this property to be valid, the MultiLine property must be set to True.

(6) SelLength, SelStart and SelText attributes

SelLength returns / sets the number of characters selected.

SelStart returns / sets the starting point of the selected text.

SelText returns / sets the string containing the currently selected text

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