GridHitTest Enum

Lists values identifying a Grid View’s visual elements.

Namespace: DevExpress.XtraGrid.Views.Grid.ViewInfo

Assembly: DevExpress.XtraGrid.v23.2.dll

NuGet Packages: DevExpress.Win.Grid, DevExpress.Win.Navigation

Declaration

C#

public enum GridHitTest

VB.NET

Public Enum GridHitTest

Members

Name	Description
None	The test point does not belong to any View visual element or is outside the View.
Column	The test point belongs to a column header.
ColumnEdge	The test point belongs to the right edge of a column header. End-users can drag these edges to resize columns horizontally (the desired column’s OptionsColumn.AllowSize option must be enabled for this purpose).
ColumnButton	The test point belongs to the header panel button.
ColumnFilterButton	The test point belongs to a filter button.
ColumnPanel	The test point belongs to the column header panel’s area not occupied by column headers.
ColumnHeaderSearchButton	The test point belongs to the search button in a column header.
ColumnHeaderSearchText	The test point belongs to the search text in a column header.
RowCell	The test point belongs to a row cell.
RowIndicator	The test point belongs to an indicator panel cell corresponding to a data row or group row.
RowGroupButton	The test point belongs to a group expand button.
RowGroupCheckSelector	The test point belongs to a Group Row Check Box Selector.
Row	The test point belongs to either a group row or a data row’s area not occupied by data cells.
RowPreview	The test point belongs to a preview section.
RowDetail	The test point belongs to a detail section.
RowDetailEdge	The test point belongs to the detail section’s bottom edge. The edge can be dragged to resize the detail section vertically.
RowDetailIndicator	The test point belongs to an indicator panel cell corresponding to a detail section.
EmptyRow	The test point is below all rows.
GroupPanel	The test point belongs to the group panel.
GroupPanelColumn	The test point belongs to a column header displayed within the group panel.
GroupPanelColumnFilterButton	The test point belongs to the filter button displayed by a column header that resides within the group panel.
GroupPanelColumnHeaderSearchButton	The test point belongs to the search button in a grouped column header.
GroupPanelColumnHeaderSearchText	The test point belongs to the search text in a grouped column header.
GroupPanelFindPanelButton	The test point belongs to the Find button in the group panel.
Footer	The test point belongs to the view footer.
CellButton	The test point belongs to a master-detail expand button which can be used to open/close details.
CustomizationForm	The test point belongs to the Customization Form.
FilterPanel	The test point belongs to the filter panel.
FilterPanelCloseButton	The test point belongs to the filter close button.
RowFooter	The test point belongs to a group footer.
RowEdge	The test point belongs to the bottom edge of a data row. The edge can be dragged to resize the row vertically (if the GridOptionsCustomization.AllowRowSizing option is active).
FixedLeftDiv	The test point belongs to the left fixed line.
FixedRightDiv	The test point belongs to the right fixed line.
VScrollBar	The test point belongs to the View’s vertical scroll bar.
HScrollBar	The test point belongs to the View’s horizontal scroll bar.
FilterPanelActiveButton	The test point belongs to the button in the filter panel used to activate filtering within a View.
FilterPanelText	The test point belongs to a string in the filter panel which represents the filter criteria applied to a View.
FilterPanelMRUButton	The test point belongs to the button in the filter panel used to display a dropdown window with a list of the most recently used filter criteria.
FilterPanelCustomizeButton	The test point belongs to the filter panel customize button.
ViewCaption	The test point belongs to the View Caption.
MasterTabPageHeader	The test point belongs to the View’s master-detail tab.
RowGroupCell	The test point belongs to a row group cell.

Related API Members

The following properties accept/return GridHitTest values:

• GridHitInfo.HitTest

Remarks

GridHitTest enumeration values are returned by the GridHitInfo.HitTestproperty of a GridHitInfo object. GridHitInfo objects can be created by calling the Grid View’s GridView.CalcHitInfo method.

The following images illustrate some visual elements and corresponding enumeration values. For a complete list of enumeration values, see the table below.

Example

The following sample code shows how to identify the element located at a specific point using the GridView.CalcHitInfo method.

In the example, the CalcHitInfo method is called when you move the cursor over a Grid Control. The name of the current View element is displayed in the form’s caption.

C#

using DevExpress.XtraGrid;
using DevExpress.XtraGrid.Views.Base;
using DevExpress.XtraGrid.Views.Base.ViewInfo;
using DevExpress.XtraGrid.Views.Grid.ViewInfo;
// ...
private void gridControl1_MouseMove(object sender, MouseEventArgs e) {
    GridControl grid = sender as GridControl;
    if (grid == null) return;
    // Get a View at the current point.
    BaseView view = grid.GetViewAt(e.Location);
    if (view == null) return;
    // Retrieve information on the current View element.
    BaseHitInfo baseHI = view.CalcHitInfo(e.Location);
    GridHitInfo gridHI = baseHI as GridHitInfo;
    if (gridHI != null)
        Text = gridHI.HitTest.ToString();
}

VB.NET

Imports DevExpress.XtraGrid
Imports DevExpress.XtraGrid.Views.Base
Imports DevExpress.XtraGrid.Views.Base.ViewInfo
Imports DevExpress.XtraGrid.Views.Grid.ViewInfo
' ...
Private Sub GridControl1_MouseMove(ByVal sender As System.Object, _
  ByVal e As System.Windows.Forms.MouseEventArgs) _
  Handles GridControl1.MouseMove
    Dim grid As GridControl = sender
    If grid Is Nothing Then
        Return
    End If
    ' Get a View at the current point.
    Dim view As BaseView = grid.GetViewAt(e.Location)
    If view Is Nothing Then
        Return
    End If
    ' Retrieve information on the current View element.
    Dim baseHI As BaseHitInfo = view.CalcHitInfo(e.Location)
    Dim gridHI As GridHitInfo = TryCast(baseHI, GridHitInfo)
    If Not gridHI Is Nothing Then
        Text = gridHI.HitTest.ToString()
    End If
End Sub