how to find column index using dataIndex Extjs 4

Question

Well in ExtJS 3 i used the following code:

grid.getColumnModel().findColumnIndex(\"Tasks\")

I tried finding it on the api docs, but no luck...so how

Answer 1

I guess you should find index by iterating through grid.columns array and comparing dataIndex property of each column.

Example:

var findColumnIndex = function(columns, dataIndex) {
    var index;
    for (index = 0; index < columns.length; ++index) {
        if (columns[index].dataIndex == dataIndex) { break; }
    }​​​​​​​​
    return index == columns.length ? -1 : index;
}


console.log(findColumnIndex(grid.columns, 'Task'));
console.log(findColumnIndex(grid.columns, 'Something'));