Hiding-Fields-in-Filters

##Purpose

Hiding fields in filters is a way to disallow filtering on certain fields. You can programmatically prevent access to fields in the filters tab based on any arbitrary logic you wish to employ.

##Example

In this example, I'm arbitrarily disallowing the user to filter on any field with the word "Ship" in it.

##Implementation

There is a rather simple override to implement this functionality in your Global.asax. The function is IsFieldAllowedInFilters and has the following signature.

public override bool IsFieldAllowedInFilters(string fullColumnName, string tableName, string columnName) {
      base.IsFieldAllowedInFilters(fullColumnName, tableName, columnName);
    }

Here is the override used to achieve the results in the Example section:

public override bool IsFieldAllowedInFilters(string fullColumnName, string tableName, string columnName) {
      if (columnName.Contains("Ship")) {
        return false;
      }
      else
        return true;        
    }

Your logic can be easily amended to target individual columns, or even entire tables worth of columns.