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Method which triggers filter command for the column with UniqueName (set on the server) passed as a first argument. The second argument should be value to compare (or two values separated by [space] for between filter pattern) or an empty string for EqualTo, NoFilter, IsNull, etc. The last third argument has to be a value from the Telerik.Web.UI.GridFilterFunction enumeration which internally recognizes the filter criteria that should be applied. All server-side filtering capabilities of RadGrid are applicable here as well. See the topic describing the fireCommand method for further details.

filter(colUniqueName, valueToCompare, filterFunction, shouldUpdateFilterControl)
colUniqueName String The UniqueName of the column that will be filtered.
valueToCompare Optional argument (String, Integer, etc.) The value which will be used for the comparison against the entire set of data through the filter criteria.
filterFunction Enumeration value The filter pattern that will be applied.
shouldUpdateFilterControl Boolean (Optional) Determines whether the filter control will be updated with the relevant filter value applied by the grid filter expression. The default value is false.


function RemoveFilter() {
    var masterTable = $find("<%= RadGrid1.ClientID %>").get_masterTableView();
    masterTable.filter("OrderID", "", Telerik.Web.UI.GridFilterFunction.NoFilter);

function ApplyGreaterThanFilter() {
    var masterTable = $find("<%= RadGrid1.ClientID %>").get_masterTableView();
    masterTable.filter("OrderID", 10254, Telerik.Web.UI.GridFilterFunction.GreaterThan, true);

function ApplyBetweenFilter() {
    var masterTable = $find("<%= RadGrid1.ClientID %>").get_masterTableView();
    masterTable.filter("OrderID", "10256 10260", Telerik.Web.UI.GridFilterFunction.Between, true);

Telerik.Web.UI.GridFilterFunction enumeration

Internal integer value Public value
0 NoFilter
1 Contains
2 DoesNotContain
3 StartsWith
4 EndsWith
5 EqualTo
6 NotEqualTo
7 GreaterThan
8 LessThan
9 GreaterThanOrEqualTo
10 LessThanOrEqualTo
11 Between
12 NotBetween
13 IsEmpty
14 NotIsEmpty
15 IsNull
16 NotIsNull
17 Custom