WebPages Element Property Tags
The following table contains the element properties, which will automatically be published in Cognex Designer as tags when the element is added to a WebPage. These properties can be set via bindings and WebPage Elements Event Handler Scripts, or monitored in Data Change Scripts (WebHMI), and can be accessed in the Tag Browser.
| Element | Property | Tag | Type |
|---|---|---|---|
| CheckBox | Checked | $WebPages.[PageName].CheckBox.Checked | Boolean |
| DataTable | Content | $WebPages.[PageName].DataTable.Content | TableData |
| DateTime Entry | Format | $WebPages.[PageName].DateTimeEntry.Format | String |
| Value | $WebPages.[PageName].DateTimeEntry.Value | String | |
| Display | Image Rotation | $WebPages.[PageName].Display.ImageRotation | Integer |
| Zoom Level | $WebPages.[PageName].Display.ZoomLevel | Double | |
| Zoom Type | $WebPages.[PageName].Display.ZoomType | Integer | |
| ListBox | Content | $WebPages.[PageName].ListBox.Content | TableData |
| Selected Index | $WebPages.[PageName].ListBox.SelectedIndex | Integer | |
| Selected Value | $WebPages.[PageName].ListBox.SelectedValue | String | |
| Numeric Entry | Value | $WebPages.[PageName].NumericEntry | Double |
| Radio Button | Checked | $WebPages.[PageName].RadioButton.Checked | Boolean |
| Selection Box | Content | $WebPages.[PageName].SelectionBox.Content | TableData |
| Selected Index | $WebPages.[PageName].SelectionBox.SelectedIndex | Integer | |
| Selected Value | $WebPages.[PageName].SelectionBox.SelectedValue | String | |
| Slider | Value | $WebPages.[PageName].Slider.Value | Integer |
| TextBox | Text | $WebPages.[PageName].TextBox.Text | String |
Note:
- All of the elements (Web Page User Input Controls, Graphics) properties can be accessed via the $HMI.SetControlProperty() and $HMI.GetControlProperty() functions. Cognex recommends only using these functions when an element does not have an Cognex Designer published property tag.
- The properties of the elements are the same as those exposed in the Web Page Editor, minus the white space between the names (i.e. Border Color > BorderColor).
- When an element with a published property tag is placed on a Panel or in a Group, the path name of the element changes to include the name of the Panel or Group. For example, WebPages.WebPageName.PanelName.CheckboxName.Checked. If the element is ungrouped or removed from the Panel, the path name will be changed; for example, WebPages.WebPageName.GroupName.SelectionBoxName.Content becomes WebPages.WebPageName.SelectionBoxName.Content.
-
A DateTime column in a database query is not supported.
You cannot use the DateTime tag in WebHMI, for example, displaying a table in WebHMI with a DateTime column.