Excel.CustomXmlPart class

The request context associated with the object. This connects the add-in's process to the Office host application's process.

context: RequestContext;

Property Value

The custom XML part's ID.

readonly id: string;

Property Value

Remarks

[ API set: ExcelApi 1.5 ]

Examples

// Link to full sample: https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/excel/18-custom-xml-parts/create-set-get-and-delete-custom-xml-parts.yaml

await Excel.run(async (context) => {
    // You must have the xmlns attribute to populate the 
    // CustomXml.namespaceUri property.
    const originalXml = "<Reviewers xmlns='http://schemas.contoso.com/review/1.0'><Reviewer>Juan</Reviewer><Reviewer>Hong</Reviewer><Reviewer>Sally</Reviewer></Reviewers>";
    const customXmlPart = context.workbook.customXmlParts.add(originalXml);
    customXmlPart.load("id");
    const xmlBlob = customXmlPart.getXml();

    await context.sync();

    const readableXml = addLineBreaksToXML(xmlBlob.value);
    document.getElementById("display-xml").textContent = readableXml;

    // Store the XML part's ID in a setting.
    const settings = context.workbook.settings;
    settings.add("ContosoReviewXmlPartId", customXmlPart.id);

    await context.sync();
});

The custom XML part's namespace URI.

readonly namespaceUri: string;

Property Value

Remarks

[ API set: ExcelApi 1.5 ]

Deletes the custom XML part.

delete(): void;

Returns

Remarks

[ API set: ExcelApi 1.5 ]

Examples

// Link to full sample: https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/excel/18-custom-xml-parts/create-set-get-and-delete-custom-xml-parts.yaml

await Excel.run(async (context) => {
    const settings = context.workbook.settings;
    const xmlPartIDSetting = settings.getItemOrNullObject("ContosoReviewXmlPartId").load("value");
    await context.sync();

    if (xmlPartIDSetting.value) {   
        let customXmlPart = context.workbook.customXmlParts.getItem(xmlPartIDSetting.value);
        const xmlBlob = customXmlPart.getXml();
        customXmlPart.delete();
        customXmlPart = context.workbook.customXmlParts.getItemOrNullObject(xmlPartIDSetting.value);

        await context.sync();

        if (customXmlPart.isNullObject) {
            document.getElementById("display-xml").textContent = `The XML part with the id ${xmlPartIDSetting.value} has been deleted.`;

            // Delete the unneeded setting too.
            xmlPartIDSetting.delete();            
        } else {
            const readableXml = addLineBreaksToXML(xmlBlob.value);
            const strangeMessage = `This is strange. The XML part with the id ${xmlPartIDSetting.value} has not been deleted:\n${readableXml}`
            document.getElementById("display-xml").textContent = strangeMessage;
        }

        await context.sync();
    }
});

Gets the custom XML part's full XML content.

getXml(): OfficeExtension.ClientResult<string>;

Returns

Remarks

[ API set: ExcelApi 1.5 ]

Examples

// Link to full sample: https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/excel/18-custom-xml-parts/create-set-get-and-delete-custom-xml-parts.yaml

await Excel.run(async (context) => {
    // You must have the xmlns attribute to populate the 
    // CustomXml.namespaceUri property.
    const originalXml = "<Reviewers xmlns='http://schemas.contoso.com/review/1.0'><Reviewer>Juan</Reviewer><Reviewer>Hong</Reviewer><Reviewer>Sally</Reviewer></Reviewers>";
    const customXmlPart = context.workbook.customXmlParts.add(originalXml);
    customXmlPart.load("id");
    const xmlBlob = customXmlPart.getXml();

    await context.sync();

    const readableXml = addLineBreaksToXML(xmlBlob.value);
    document.getElementById("display-xml").textContent = readableXml;

    // Store the XML part's ID in a setting.
    const settings = context.workbook.settings;
    settings.add("ContosoReviewXmlPartId", customXmlPart.id);

    await context.sync();
});

Queues up a command to load the specified properties of the object. You must call context.sync() before reading the properties.

load(options?: Excel.Interfaces.CustomXmlPartLoadOptions): Excel.CustomXmlPart;

Parameters

Returns

Queues up a command to load the specified properties of the object. You must call context.sync() before reading the properties.

load(propertyNames?: string | string[]): Excel.CustomXmlPart;

Parameters

Returns

Queues up a command to load the specified properties of the object. You must call context.sync() before reading the properties.

load(propertyNamesAndPaths?: {
            select?: string;
            expand?: string;
        }): Excel.CustomXmlPart;

Parameters

Returns

Sets the custom XML part's full XML content.

setXml(xml: string): void;

Parameters

Returns

Remarks

[ API set: ExcelApi 1.5 ]

Examples

// Link to full sample: https://raw.githubusercontent.com/OfficeDev/office-js-snippets/prod/samples/excel/18-custom-xml-parts/create-set-get-and-delete-custom-xml-parts.yaml

await Excel.run(async (context) => {
    const settings = context.workbook.settings;
    const xmlPartIDSetting = settings.getItemOrNullObject("ContosoReviewXmlPartId").load("value");
    await context.sync();

    if (xmlPartIDSetting.value) {   
        const customXmlPart = context.workbook.customXmlParts.getItem(xmlPartIDSetting.value);

        // The setXml method does a whole-for-whole replacement 
        // of the entire XML.
        customXmlPart.setXml("<Reviewers xmlns='http://schemas.contoso.com/review/1.0'><Reviewer>John</Reviewer><Reviewer>Hitomi</Reviewer></Reviewers>");
        const xmlBlob = customXmlPart.getXml();
        await context.sync();

        const readableXml = addLineBreaksToXML(xmlBlob.value);
        document.getElementById("display-xml").textContent = readableXml;
        await context.sync();
    }
});

Overrides the JavaScript toJSON() method in order to provide more useful output when an API object is passed to JSON.stringify(). (JSON.stringify, in turn, calls the toJSON method of the object that's passed to it.) Whereas the original Excel.CustomXmlPart object is an API object, the toJSON method returns a plain JavaScript object (typed as Excel.Interfaces.CustomXmlPartData) that contains shallow copies of any loaded child properties from the original object.

toJSON(): Excel.Interfaces.CustomXmlPartData;

Returns