Javascript: EmbeddedFile.setMIMEType Method — TX Text Control .NET Server

Description

Sets an optional string specifying the file's type using types specified through the Multipurpose Internet Mail Extensions (MIME) specification. When a file is embedded and a type is not specified the default type application/octet-stream is used.

Syntax

<void> EmbeddedFile.setMIMEType(<string> value, [<EmptyRequestCallback> callback], [<ErrorCallback> errorCallback])

Parameters

Parameter	Description
value	The property value.
callback	Optional. Is called when the operation completed.
errorCallback	Optional. Is called when the operation failed with an error.

Examples

The following example demonstrates EmbeddedFile.setMIMEType in a practical document-editing workflow. It sets an optional string specifying the file's type using types specified through the Multipurpose Internet Mail Extensions (MIME) specification. When a file is embedded and a type is not specified the default type application/octet-stream is used.

function onTxError(error) {
    console.error("TX Text Control error:", error.msg);
    error.handled = true;
}

TXTextControl.textParts.getMainText(function(mainText) {
    const embeddedFiles = mainText.embeddedFiles;
    embeddedFiles.getItem(function(embeddedFile) {
        if (!embeddedFile) {
            console.warn("No embedded file is available at the current input position.");
            return;
        }
    
        embeddedFile.setMIMEType(
            "Quarterly report",
            function() {
                console.log("set mimetype completed.");
            },
            onTxError
        );
    }, onTxError);
}, onTxError);