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View this topic on docs.devexpress.com (Learn more)

VGridControlBase.CalcHitInfo Method

Returns information on the vertical grid elements located at the specified point.

Namespace:DevExpress.XtraVerticalGrid
Assembly:DevExpress.XtraVerticalGrid.v19.1.dll

Expanded Syntax

Parameters

ptGridClient
Type: Point
A System.Drawing.Point structure which specifies the test point coordinates relative to the vertical grid's top-left corner.

Return value

Type: VGridHitInfo
A VGridHitInfo object which contains information about the vertical grid elements located at the test point.

Expanded Remarks

Use the CalcHitInfo method to determine which element is located at the specified point. For instance, this can be used when processing row drag and drop operations. For general information on obtaining and using hit information, see Hit Information.

Expanded Example

This example demonstrates how you can handle native drag specific grid events in order to combine a dragged row with the targeted one in a single multi-editor row. The example implies that an editor row dragged from the Customization Form can only be dropped onto the headers of editor or multi-editor rows. In a case when the target is a multi-editor row, a dropped row is inserted as a new row item for the target row. When dropping a row onto the header cell of the targeted editor row, both rows (dropped and target) are deleted from the grid and a multi-editor row with two row items is created instead. The created row items copy base row settings from the deleted rows. The position of the drop point inside the header cell of the target row (row item) affects the index of the new row item created for the dropped row.

Note that the example uses information from the BaseViewInfo object available via the ViewInfo property in order to properly calculate the targeted header cell's bounds. The following picture illustrates the base view info notions used in the example.

The image below displays the process of handling row drag & drop operations using the code in this example.

If you want to split a multi-editor row into several editor rows you can use the code provided by the Dragging Rows topic.

Expanded See Also

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