Here is the markup for the entire grid, the column I'm searching on is ActivityTypeID. Also the contains filter seems to be working ok if I put only letters in the search box, but numbers and letters like: "Insulation - 02" also gives nothing matched.
01.<telerik:RadGridID="ActivityTypeSkillGrid"runat="server"AllowAutomaticDeletes="True"AllowAutomaticInserts="True"02. AllowAutomaticUpdates="True"AllowPaging="True"AutoGenerateColumns="False"GridLines="None"03. Skin="WebBlue"Width="822px"PageSize="20"Visible="false"OnItemCommand="Grid_ItemCommand"04. OnItemInserted="Grid_ItemInserted"OnItemDeleted="Grid_ItemDeleted"OnItemUpdated="Grid_ItemUpdated"05. AllowFilteringByColumn="true"OnItemDataBound="Grid_ItemDataBound"AllowSorting="true">06. <GroupingSettingsCaseSensitive="false"/>07. <ExportSettings>08. <PdfPageBottomMargin=""PageFooterMargin=""PageHeaderMargin=""PageHeight="11in"09. PageLeftMargin=""PageRightMargin=""PageTopMargin=""PageWidth="8.5in"/>10. </ExportSettings>11. <PagerStyleMode="NextPrevAndNumeric"/>12. <MasterTableViewDataKeyNames="ID"EditMode="InPlace"TableLayout="Fixed"Width="100%"13. CommandItemDisplay="Top">14. <RowIndicatorColumnVisible="False">15. <HeaderStyleWidth="20px"/>16. </RowIndicatorColumn>17. <ExpandCollapseColumnResizable="False"Visible="False">18. <HeaderStyleWidth="20px"/>19. </ExpandCollapseColumn>20. <Columns>21. <telerik:GridEditCommandColumn>22. <HeaderStyleWidth="80px"/>23. </telerik:GridEditCommandColumn>24. <telerik:GridBoundColumnUniqueName="ID"HeaderText="ID"DataField="ID"SortExpression="ID"Visible="false">25. </telerik:GridBoundColumn>26. <telerik:GridBoundColumnDataField="CompanyID"DataType="System.Guid"Visible="False"27. HeaderText="CompanyID"SortExpression="CompanyID"UniqueName="CompanyID">28. </telerik:GridBoundColumn>29. <telerik:GridDropDownColumnUniqueName="ProjectNo"HeaderText="Project No"DataField="ProjectNo"30. FilterImageUrl="images/Filter.gif"FilterControlWidth="100%"DataType="System.String"31. DataSourceID="ProjectNoLookupDS"EnableEmptyListItem="True"ListTextField="Code"32. ListValueField="Code">33. <HeaderStyleWidth="150px"/>34. </telerik:GridDropDownColumn>35. 36. <telerik:GridDropDownColumnUniqueName="ActivityTypeID"HeaderText="Activity Type"DataField="ActivityTypeID"37. FilterImageUrl="images/Filter.gif"FilterControlWidth="100%"DataType="System.String"38. DataSourceID="ActivityTypeLookupDS"EnableEmptyListItem="True"ListTextField="ExtDescription"39. ListValueField="ID"ColumnEditorID="ActivityTypeIDColumnEditor"SortExpression="ActivityType">40. <HeaderStyleWidth="490px"/>41. </telerik:GridDropDownColumn>42. 43. <telerik:GridBoundColumnUniqueName="ActivityTypeName"DataField="ActivityType"Display="false"ReadOnly="true">44. </telerik:GridBoundColumn>45. 46. <telerik:GridDropDownColumnUniqueName="SkillID"HeaderText="Skill"DataField="SkillID"47. FilterImageUrl="images/Filter.gif"FilterControlWidth="100%"DataType="System.String"48. DataSourceID="SkillLookupDS"EnableEmptyListItem="True"ListTextField="Skill"49. ListValueField="ID"SortExpression="Skill">50. <HeaderStyleWidth="100px"/>51. </telerik:GridDropDownColumn>52. 53. <telerik:GridBoundColumnUniqueName="SkillName"DataField="Skill"Display="false"ReadOnly="true">54. </telerik:GridBoundColumn>55. 56. </Columns>57. <EditFormSettings>58. <EditColumnUniqueName="EditCommandColumn1">59. </EditColumn>60. </EditFormSettings>61. </MasterTableView>62.</telerik:RadGrid>