Hello John,
If a column is bound to a filed of type "number", this has to be specified in the DataSource schema. This will enable the respective filter options for that type: "is grater than", "is less than", etc.
For example we have the "Freight" field:
<column field="Freight" title="Freight">
<filterable enabled="true">
</filterable>
</column>
The DataSource schema configuration:
<datasource type="DataSourceTagHelperType.Ajax" page-size="20">
<transport>
<read url="@Url.Action("Orders_Read", "Grid")" />
</transport>
<schema>
<model>
<fields>
<field name="Freight" type="number"></field>
</fields>
</model>
</schema>
</datasource>
Regards,
Ivan Danchev
Progress Telerik
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