constants HostObjectFieldEnum
The HostObjectFieldEnum type specifies the properties you can map to a field into a data-source. The DataField property associates a data field to a property of the object of the host. The Error event occurs when an error occurs. The HostObjectFieldEnum type supports the following values:

NameValueDescription
exItemsDataSource0 Specifies the Name of the data source to load/save the rows of the host. The DataSource(Name)/DataMember(Name) defines the data source for the Items/Columns section of the host. 

It can trigger the following errors:

  • The DateField(exItemsDataSource) is empty or refers to a missing data source
exItemsID1 Specifies the name of the field from the items data source, that specifies the index/identifier of the row/item. This field should be numeric and unique.

It can trigger the following errors:

  • The DateField(exItemsID) refers to a missing data field (ignored)
  • The DateField(exItemsID) is empty, so DateField(exItemsParentID) is ignored
  • The DateField(exItemsID) refers to a missing data field, so DateField(exItemsParentID) is ignored
  • The DateField(exItemsID) and DateField(exItemsParentID) refer to the same data field, so DateField(exItemsParentID) is ignored
  • The DateField(exTasksItemID) refers to a data field and the DateField(exItemsID) is empty or refers to a missing data source (ignored)
  • The DateField(exItemsID) is required for link between tasks (ignored)
  • The DateField(exItemsID) is required for notes (ignored)
exItemsParentID2 Specifies the name of the field from the items data source, that specifies the index/identifier of the parent's row/item. The ItemParent property specifies the handle of the item's parent.

It can trigger the following errors:

  • The DateField(exItemsParentID) field contains recursive identifiers (ignored)
  • The DateField(exItemsParentID) refers to a missing data field (ignored)
  • The DateField(exItemsID) is empty, so DateField(exItemsParentID) is ignored
  • The DateField(exItemsID) refers to a missing data field, so DateField(exItemsParentID) is ignored
  • The DateField(exItemsID) and DateField(exItemsParentID) refer to the same data field, so DateField(exItemsParentID) is ignored
exItemsPosition3 Specifies the name of the field from the items data source, that specifies the position of the row/item. If set, this field is associated with the ItemPosition property of the Items object.

It can trigger the following errors:

  • The DateField(exItemsPosition) refers to a missing data field (ignored)
exItemsHeight4 Specifies the name of the field from the items data source, that specifies the height of the row/item. If set, this field is associated with the ItemHeight property of the Items object.

It can trigger the following errors:

  • The DateField(exItemsHeight) refers to a missing data field (ignored) 
exItemsBackColor5 Specifies the name of the field from the items data source, that specifies the background color the row/item. If set, this field is associated with the ItemBackColor property of the Items object.

It can trigger the following errors:

  • The DateField(exItemsBackColor) refers to a missing data field (ignored)
exItemsForeColor6 Specifies the name of the field from the items data source, that specifies the foreground color the row/item. If set, this field is associated with the ItemForeColor property of the Items object.

It can trigger the following errors:

  • The DateField(exItemsForeColor) refers to a missing data field (ignored) 
exTasksDataSource7 Specifies the Name of the data source to load/save the tasks of the host. The DataSource(Name)/DataMember(Name) defines the data source for the Tasks/Chart section of the host. If the DataField(exTasksDataSource) is DataField( exItemsDataSource) ( items and tasks from the same table ), only one task per item / row is allowed. 

It can trigger the following errors:

  • The DateField(exTasksDataSource) is empty or refers to a missing data source
  • The DateField(exTasksID) refers to a valid field, but DataField(exItemsDataSource) and DataField(exTasksDataSource) refer the same data source (ignored)
exTasksItemID8 Specifies the name of the field from the tasks data source, that specifies the index/identifier of the row/item. This field is not required if the DataField(exTasksDataSource) is DataField( exItemsDataSource) ( items and tasks from the same table ).

It can trigger the following errors:

  • The DateField(exTasksItemID) is empty or refers to a missing data source (ignored)
  • The DateField(exTasksItemID) refers to a data field and the DateField(exItemsID) is empty or refers to a missing data source (ignored)
exTasksStart9 Specifies the name of the field from the tasks data source, that specifies the start date-time of the task. The ItemBar(,,exBarStart) property specifies the date-start of the task.

It can trigger the following errors:

  • The DateField(exTasksStart) is empty or refers to a missing data source (ignored)
  • The DateField(exTasksStart) and DateField(exTasksEnd) refer to the same date field (ignored)
exTasksEnd10 Specifies the name of the field from the tasks data source, that specifies the end date-time of the task. The ItemBar(,,exBarEnd) property specifies the date-end of the task.

It can trigger the following errors:

  • The DateField(exTasksEnd) is empty or refers to a missing data source (ignored)
  • The DateField(exTasksStart) and DateField(exTasksEnd) refer to the same date field (ignored)
exTasksName11 Specifies the name of the field from the tasks data source, that specifies the name of the task. The ItemBar(,,exBarName) property specifies the name of the task.

It can trigger the following errors:

  • The DateField(exTasksName) refers to a missing data field (ignored)
exTasksColor12 Specifies the name of the field from the tasks data source, that specifies the color of the task. The ItemBar(,,exBarColor) property specifies the color of the task.

It can trigger the following errors:

  • The DateField(exTasksColor) refers to a missing data field (ignored)
exTasksCaption13 Specifies the name of the field from the tasks data source, that specifies the caption of the task. The ItemBar(,,exBarCaption) property specifies the caption of the task.

It can trigger the following errors:

  • The DateField(exTasksCaption) refers to a missing data field (ignored)
exTasksID14 Specifies the name of the field from the tasks data source, that specifies the unique key/identifier of bar inside the row/item. The ItemBar(,,exBarKey) property specifies the ID/Key of the task. This field should be numeric and unique. 

It can trigger the following errors:

  • The DateField(exTasksID) is missing (ignored)
  • The DateField(exTasksID) refers to a missing data field (ignored)
  • The DateField(exTasksID) contains duplicate keys (ignored)
  • The DateField(exTasksID) refers to a valid field, but DataField(exItemsDataSource) and DataField(exTasksDataSource) reference the same data source (ignored)
  • The DateField(exTasksID) is required for linking tasks (ignored)
exLinksDataSource15 Specifies the Name of the data source to load/save the links of the host. The DataSource(Name)/DataMember(Name) defines the data source for the Links/Chart section of the host.

It can trigger the following errors:

  • The DateField(exLinksDataSource) is empty or refers to a missing data source
  • The DateField(exLinksID) refers to a valid field, but DataField(exItemsDataSource) and DataField(exLinksDataSource) refer the same data source (ignored)
exLinksStart16 Specifies the name of the field from the links data source, that specifies the start of the link. This could be the identifier of the item (exItemsID, single-task per item) / key (exTasksID, multiple-tasks per item) where the link starts.

It can trigger the following errors:

  • The DataField(exLinksStart)/DataField(exLinksEnd) are missing. No links have been saved
  • The DateField(exLinksStart) and DateField(exLinksEnd) refer to the same date field (ignored)
  • The DateField(exLinksStart) is empty or refers to a missing data source (ignored)
exLinksEnd17 Specifies the name of the field from the links data source, that specifies the end of the link. This could be the identifier of the item (exItemsID, single-task per item) / key ( exTasksID, multiple-tasks per item) where the link ends.

It can trigger the following errors:

  • The DataField(exLinksStart)/DataField(exLinksEnd) are missing. No links have been saved
  • The DateField(exLinksStart) and DateField(exLinksEnd) refer to the same date field (ignored)
  • The DateField(exLinksEnd) is empty or refers to a missing data source (ignored)
exLinksColor18 Specifies the name of the field from the links data source, that specifies the color of the link. The Link(,exLinkColor) property specifies the color of the link.

It can trigger the following errors:

  • The DateField(exLinksColor) refers to a missing data field (ignored)
exLinksCaption19 Specifies the name of the field from the links data source, that specifies the caption of the link. The Link(,exLinkText) property specifies the caption of the link.

It can trigger the following errors:

  • The DateField(exLinksCaption) refers to a missing data field (ignored) 
exLinksID20 Specifies the name of the field from the links data source, that specifies the unique key/identifier of the link. This field should be numeric and unique.

It can trigger the following errors:

  • The DateField(exLinksID) refers to a missing data field (ignored)
  • The DateField(exLinksID) is missing (ignored)
  • The DateField(exLinksID) refers to a valid field, but DataField(exItemsDataSource) and DataField(exLinksDataSource) reference the same data source (ignored)
exNotesDataSource21 Specifies the Name of the data source to load/save the notes of the host. The DataSource(Name)/DataMember(Name) defines the data source for the Notes collection of the host.

It can trigger the following errors:

  • The DateField(exNotesDataSource) is empty or refers to a missing data source (ignored)
exNotesID22 Specifies the name of the field from the notes data source, that specifies the identifier of the note within the host. This value is equivalent with the ID parameter of the Add method of the Notes collection. The ID property of the Note object specifies the unique identifier of the note to be shown on the chart. If the associated field is of Numeric type, the host automatically prefixes the number with a "N" character, so the notes will be serialized as "N1", "N2" and so on/. The HostDef (exNewNoteID ) property defines the identifier of the new note to be created. This property is NOT automatically updated once the user creates a new note, so the user is responsible with changing this value, once a new note has been added to the chart. 

It can trigger the following errors:

  • The DataField(exNotesID) is missing. No notes have been saved
  • The DateField(exNotesID) is empty or refers to a missing data field (ignored)
exNotesItemID23 Specifies the name of the field from the notes data source, that specifies the index/identifier of the row/item associated with the note. The Item property of the Note specifies the handle of the item associated with the note.

It can trigger the following errors:

  • The DataField(exNotesItemID) is missing. No notes have been saved
  • The DateField(exNotesItemID) is empty or refers to a missing data field (ignored)
exNotesKey24 Specifies the name of the field from the notes data source, that specifies the object (date, bar) related to the note. The Key property of the Note specifies the date or bar to be associated with the note. The Key parameter of the Add method of the Notes collection specifies the DATE or the BAR to be related with the newly added note. 

It can trigger the following errors:

  • The DataField(exNotesKey) is missing. No notes have been saved
  • The DateField(exNotesKey) is empty or refers to a missing data field (ignored)
exNotesStartCaption25 Specifies the name of the field from the notes data source, that specifies the text/caption of the start part of the note. The PartText(exNoteStart) property specifies the HTML caption being shown in the start part of the note.

It can trigger the following errors:

  • The DateField(exNotesStartCaption) refers to a missing data field (ignored)
exNotesEndCaption26 Specifies the name of the field from the notes data source, that specifies the text/caption of the end part of the note. The PartText(exNoteEnd) property specifies the HTML caption being shown in the end part of the note.

It can trigger the following errors:

  • The DateField(exNotesEndCaption) refers to a missing data field (ignored) 
exNotesShowLink27 Specifies the name of the field from the notes data source, that defines the link between parts of the note. The ShowLink property retrieves or sets a value that indicates the link between parts of the note

It can trigger the following errors:

  • The DateField(exNotesShowLink) refers to a missing data field (ignored) 
exNotesStartCanMove28 Specifies the name of the field from the notes data source, that indicates whether the start part of the note can move. The PartCanMove(exNoteStart) property specifies whether the user can move the start part of the note.

It can trigger the following errors:

  • The DateField(exNotesStartCanMove) refers to a missing data field (ignored) 
exNotesEndCanMove29 Specifies the name of the field from the notes data source, that indicates whether the end part of the note can move. The PartCanMove(exNoteEnd) property specifies whether the user can move the end part of the note.

It can trigger the following errors:

  • The DateField(exNotesEndCanMove) refers to a missing data field (ignored) 
exNotesRelativePosition30 Specifies the name of the field from the notes data source, that defines the position of the note relative to associated object. The RelativePosition property specifies the position of the note relative to associated object

It can trigger the following errors:

  • The DateField(exNotesRelativePosition) refers to a missing data field (ignored) 
exNotesStartHOffset31 Specifies the name of the field from the notes data source, that indicates the horizontal offset to display the start part of the note. The PartHOffset(exNoteStart) property specifies the horizontal offset to display the start part of the note.

It can trigger the following errors:

  • The DateField(exNotesStartHOffset) refers to a missing data field (ignored) 
exNotesEndHOffset32 Specifies the name of the field from the notes data source, that indicates the horizontal offset to display the end part of the note. The PartHOffset(exNoteEnd) property specifies the horizontal offset to display the end part of the note.

It can trigger the following errors:

  • The DateField(exNotesEndHOffset) refers to a missing data field (ignored) 
exNotesStartVOffset33 Specifies the name of the field from the notes data source, that indicates the vertical offset to display the start part of the note. The PartVOffset(exNoteStart) property specifies the vertical offset to display the start part of the note.

It can trigger the following errors:

  • The DateField(exNotesStartVOffset) refers to a missing data field (ignored) 
exNotesEndVOffset34 Specifies the name of the field from the notes data source, that indicates the vertical offset to display the end part of the note. The PartVOffset(exNoteEnd) property specifies the vertical offset to display the end part of the note.

It can trigger the following errors:

  • The DateField(exNotesEndVOffset) refers to a missing data field (ignored) 
exNotesStartBackColor35 Specifies the name of the field from the notes data source, that defines the background color of the start part of the note. The PartBackColor(exNoteStart) property specifies the background color to show the start part of the note.

It can trigger the following errors:

  • The DateField(exNotesStartBackColor) refers to a missing data field (ignored) 
exNotesEndBackColor36 Specifies the name of the field from the notes data source, that defines the background color of the end part of the note. The PartBackColor(exNoteEnd) property specifies the background color to show the end part of the note.

It can trigger the following errors:

  • The DateField(exNotesEndBackColor) refers to a missing data field (ignored) 
exNotesStartForeColor37 Specifies the name of the field from the notes data source, that defines the foreground color of the start part of the note. The PartForeColor(exNoteStart) property specifies the foreground color to show the start part of the note.

It can trigger the following errors:

  • The DateField(exNotesStartForeColor) refers to a missing data field (ignored) 
exNotesEndForeColor38 Specifies the name of the field from the notes data source, that defines the foreground color of the end part of the note. The PartForeColor(exNoteEnd) property specifies the foreground color to show the end part of the note.

It can trigger the following errors:

  • The DateField(exNotesEndForeColor) refers to a missing data field (ignored) 
exNotesStartShadow39 Specifies the name of the field from the notes data source, that indicates whether the start part of the note shows its shadow. The PartShadow(exNoteStart) property specifies whether the start part of the note shows a shadow border.

It can trigger the following errors:

  • The DateField(exNotesStartShadow) refers to a missing data field (ignored) 
exNotesEndShadow40 Specifies the name of the field from the notes data source, that indicates whether the end part of the note shows its shadow. The PartShadow(exNoteEnd) property specifies whether the end part of the note shows a shadow border.

It can trigger the following errors:

  • The DateField(exNotesEndShadow) refers to a missing data field (ignored) 
exLinksStartPos41 Specifies the name of the field from the links data source, that specifies where the link starts. The Link(exLinkStartPos) property specifies the position where the link starts in the source item.

It can trigger the following errors:

  • The DateField(exLinksStartPos) refers to a missing data field (ignored) 
exLinksEndPos42 Specifies the name of the field from the links data source, that specifies where the link ends. The Link(exLinkEndPos) property specifies the position where the link ends in the target item.

It can trigger the following errors:

  • The DateField(exLinksEndPos) refers to a missing data field (ignored) 
exTasksPercent43 Specifies the name of the field from the tasks data source, that specifies the percent of the task. The ItemBar(exBarPercent) property specifies the percent from the original bar where the progress bar is displayed. This float value should be between 0 and 1 ( 1 means 100% ).

It can trigger the following errors:

  • The DateField(exTasksPercent) refers to a missing data field (ignored) 
exTasksShowPercentCaption44 Specifies the name of the field from the tasks data source, that specifies whether the percent is shown on the task. The ItemBar(exBarShowPercentCaption) property specifies whether the percent is displayed as caption on the bar.

It can trigger the following errors:

  • The DateField(exTasksShowPercentCaption) refers to a missing data field (ignored) 
exTasksPercentCaptionFormat45 Specifies the name of the field from the tasks data source, that specifies the format to displays the percent on the task. The ItemBar(exBarPercentCaptionFormat) property specifies the HTML format to be displayed as percent.

It can trigger the following errors:

  • The DateField(exTasksPercentCaptionFormat) refers to a missing data field (ignored) 
exTasksCanResize46 Specifies the name of the field from the tasks data source, that specifies whether the task can be resized at runtime. The ItemBar(exBarCanResize) property specifies whether the bar can be resized.

It can trigger the following errors:

  • The DateField(exTasksCanResize) refers to a missing data field (ignored) 
exTasksCanMove47 Specifies the name of the field from the tasks data source, that specifies whether the task can be moved at runtime. The ItemBar(exBarCanMove) property specifies whether the bar can be moved.

It can trigger the following errors:

  • The DateField(exTasksCanMove) refers to a missing data field (ignored) 
exTasksCanMoveToAnother48 Specifies the name of the field from the tasks data source, that specifies whether the task can be moved to another item. The ItemBar(exBarCanMoveToAnother) property specifies whether the bar can be moved to another item.

It can trigger the following errors:

  • The DateField(exTasksCanMoveToAnother) refers to a missing data field (ignored) 
exTasksPattern49 Specifies the name of the field from the tasks data source, that specifies the pattern of the task. The ItemBar(exBarPattern) property specifies bar's individual pattern

It can trigger the following errors:

  • The DateField(exTasksPattern) refers to a missing data field (ignored)