JavaScript techniques for obtaining macro control data

Using JavaScript to obtain macro control data includes the following steps: Obtain the macro control object. Get macro control properties such as ClassID. Execute macro control methods, such as opening the VB editor. Get the macro control value and select the method according to the type. Handle user-selected values, such as getting the selected value from a drop-down list. Trigger macro control events, such as the "OnClick()" event.

Techniques for using JavaScript to obtain macro control data

The macro control is a complex and powerful component in the Windows operating system, which can be embedded into a Web page. Provides advanced features. However, the process of getting its data is not always straightforward, and this article will provide some tips to help JavaScript developers easily get the data of a macro control.

Get the macro control object

The macro control is encapsulated in a object element, which can be accessed through its id attribute or document.getElementById () method to obtain. The following code shows how to get a macro control object named "myMacro":

const macroObject = document.getElementById("myMacro");

Get macro control properties

The macro control provides a large number of properties to describe its status and behavior. These properties can be accessed using dot notation syntax. Here are some common properties:

• ActiveXObject: A property populated by an ActiveX object that represents a macro control.
• CodeBase: URL of the download location of the macro control.
• ReadyState: Macro control loading status (uninitialized, unloaded, loaded, etc.).

For example, get the ClassID property of the macro control:

const classID = macroObject.ActiveXObject.ClassID;

Execute macro control method

The macro control also provides various methods that allow JavaScript to call its functions. These methods can be called through ActiveXObject properties. For example, to open the embedded VB editor for a macro control named "myMacro":

macroObject.ActiveXObject.VBEditor();

Get the macro control value

The value of the macro control can be stored in different properties, depending on Macro control type. Here are some common methods:

• OLE Automation Control: Use the GetResult() method to get the value.
• ActiveX Data Control: Use the data property to get the data set.
• Macro Control Library: Get the value using methods specific to the macro control library.

For example, get the value of an OLE automation macro control:

const value = macroObject.ActiveXObject.GetResult();

Practical case

Get the value selected by the user

Consider a macro control that allows the user to select a value, such as a drop-down list or list box. Here's how to get the selected value using JavaScript:

const selectedValue = document.getElementById("myMacro").ActiveXObject.GetValue();

Trigger macro control events

The macro control provides various events that can be triggered when specific actions occur. Here's how to use JavaScript to trigger the "OnClick()" event of a macro control:

macroObject.ActiveXObject.FireEvent("OnClick");

Conclusion

By following these tips, JavaScript developers can easily obtain the data of the macro control and take full advantage of it. functionality and create powerful web applications.

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