MatrixBinding.columnCount property

Gets the number of columns in the matrix data structure, as an integer value.

Hosts: Access, Excel, PowerPoint, Project, Word
Available in Requirement set MatrixBindings
Last changed in Selection 1.1
var colCount = bindingObj.columnCount;

Return Value

The number of columns in the specified MatrixBinding object.


function showBindingColumnCount() {
    Office.context.document.bindings.getByIdAsync("myBinding", function (asyncResult) {
        write("Column: " + asyncResult.value.columnCount);
// Function that writes to a div with id='message' on the page.
function write(message){
    document.getElementById('message').innerText += message; 

Support details

A capital Y in the following matrix indicates that this method is supported in the corresponding Office host application. An empty cell indicates that the Office host application doesn't support this method.

For more information about Office host application and server requirements, see Requirements for running Office Add-ins.

Supported hosts, by platform

Office for Windows desktop Office Online (in browser) Office for iPad
Excel Y Y Y
Word Y Y Y
Available in requirement sets MatrixBindings
Minimum permission level WriteDocument
Add-in types Content, task pane
Library Office.js
Namespace Office

Support history

Version Changes
1.1 Added support for Excel and Word in Office for iPad.
1.0 Introduced