Hello:
We have a page where users select from a list of question and depending on what they select, the grid may be quite wide (lots of columns).
In an extreme case we recently ran into, 200+ questions were selected and it took over a full minute to add these number of columns to the grid. Any suggestion on how we can improve the performance?
for (var cols in data.options.columns) {
data.options.columns[cols].data);
grid.columns.add({
text: data.options.columns[cols].title,
field: data.options.columns[cols].data,
type: (data.options.columns[cols].dataType.toUpperCase() == "DATETIME" ? 'date' : ''),
htmlEncode: false,
autoHeight: true,
hidden: (["cityOfBirth", "dateOfDeath", "sexOnBirth", "countryOfResidence", "stateProvinceRegionOfResidence", "countryOfBirth", "relationship", "studyOptIns"].includes(data.options.columns[cols].data)),
})
}
