Office JS - Add customProperty to new document - ms-word

Question

I´m developing an addIn for office (word) and I´m stuck with this problem. I need to assign custom properties to a new document that is going to be opened in a new window/instance.
I´m already using custom properties for documents that are already opened this way:
setProperty(propName, propValue) {
Word.run(context => {
context.document.properties.customProperties.add(propName, propValue);
return context.sync();
}).catch(error => {
if (error instanceof OfficeExtension.Error) {
console.log(
"Error code and message: " + JSON.stringify(error.debugInfo)
);
}
});
}
getFileOverride(attach, file) {
self.getDocumentAsBase64(attach.id).then(data => {
Word.run(context => {
let body = context.document.body;
body.insertFileFromBase64(data, Word.InsertLocation.replace);
return context
.sync()
.then(() => {
self.setProperty("fileId", file.id);
self.setProperty("attachId", attach.id);
})
.then(context.sync)
.catch(error => {
self.updateStatus("Error al obtener el archivo");
if (error instanceof OfficeExtension.Error) {
console.log(
"Error code and message: " + JSON.stringify(error.debugInfo)
);
}
});
}).catch(error => {
if (error instanceof OfficeExtension.Error) {
console.log(
"Error code and message: " + JSON.stringify(error.debugInfo)
);
}
});
});
}
But when I create a new document I don´t know how to achieve this. I´ve tried the following but gives a General Exception error:
getDocumentAsBase64(function(data) {
Word.run(function(context) {
var myNewDoc = context.application.createDocument(data);
context.load(myNewDoc);
return context
.sync()
.then(function() {
myNewDoc.properties.load();
myNewDoc.properties.customProperties.add("custom", "prop");
myNewDoc.open();
})
.then(context.sync)
.catch(function(myError) {
//otherwise we handle the exception here!
updateStatus(myError.message);
});
}).catch(function(myError) {
updateStatus(myError.message);
});
});
I've tried making a function similar to setProperty but it doesn't add the properties:
function setExternalProperty(document, propName, propValue) {
Word.run(context => {
document.properties.load();
document.properties.customProperties.add("custom", "prop");
return context.sync();
}).catch(error => {
if (error instanceof OfficeExtension.Error) {
console.log("Error code and message: " + JSON.stringify(error.debugInfo));
}
});
}
How can I achieve this?

Answer 1

I found the solution, it was quite simple. I change my function to this:
getFileNew(attach, file) {
self.getDocumentAsBase64(attach.id).then(data => {
Word.run(context => {
var myNewDoc = context.application.createDocument(data);
myNewDoc.properties.load();
myNewDoc.properties.customProperties.add("fileId", file.id);
myNewDoc.properties.customProperties.add("fileName", file.name);
myNewDoc.properties.customProperties.add("attachId", attach.id);
myNewDoc.properties.customProperties.add("attachName", attach.name);
myNewDoc.open();
return context.sync()
}).catch(error => {
if (error instanceof OfficeExtension.Error) {
console.log(
"Error code and message: " + JSON.stringify(error.debugInfo)
);
}
});
});
}
SIDENOTE: This only works on desktop version. If you want to open a document in a new window in Office Online you have to omit the customProperties or it´ll throw an exception