System windows forms control validating
Next Control In Form has been specified for Grid Model Options. This event is only raised if the Grid Wrap Cell Behavior.One known issue we found is when you open another MDI form within a Cell Double Click event, in which case the focus would be set back to the original form. Small Change property while doing accelerated scrolling. Call this method to check if you should do any update calculations for the view in your control and to notify scroll control that the control's content needs to be updated. Allows you to perform a quick Invalidate / Update pair on the grid without executing any of the grids default paint code. If you run into such a situation set this property false. Instead the grid will only call Draw Clipped Grid from its Paint handler and immediately return. Refresh Current Cell Behavior and invalidates the grid area (either the whole row, the cell or nothing) as needed. Scroll Control)Occurs before the grid is about to be left because the user is at the top-left or bottom-right cell and about to tab out of the grid.This example extends previous article how to show an Input Box in C# using simple static method. This code shows the Input Box class implementation.(Inherited from Returns a collection of the topmost level of rows in the grid. If a constraint property was set again after the Enforce Xsd Constraints method set it, that property will not be reset. Whenever Ultra Grid receives notification indicating a row has changed, Ultra Grid marks summaries for recalculation. This collection will either contain all the rows in Band 0 or the top level of Group By rows (if Group By rows are being used.) This property is read-only at run-time and is not available at design-time. Rebinds to the data source, causing Initialize Layout to be fires again. Calling this method will prevent Ultra Grid from marking summaries for recalculation whenever row changed notification is received. Resume Summary Updates to resume the default behavior of marking summaries for recalculation.
The Double Buffer Surface buffering is different from the automatic . While in printing mode Grid Bounds will return the print rectangle of the page being printed and not the client rectangle of the control on the screen. Lets you switch to default Image List_Draw instead. Scroll Control) Gets or sets a value indicating whether if false if you want to suppress key events for the grid. Clipping will automatically occur when the grid was horizontally scrolled and the first column is only partially or when the grid was vertically scrolled and the first row is only partially visible. Enabled will be skipped but you can hook into this mechanism by implementing an event handler for Query Next Current Cell Position. This method is used by Grid Grouping Control's Grid Nested Table Control where one grid control is shared among multiple nested tables and these tables need to maintain their own current cell state. This typically occurs if a message box is displayed from a System.
Ultra Grid Base)On Initialize Rows Collection is called whenever Ultra Grid creates a new row collection.
The user can initialize appearance and other settings off the Summary Value object that gets passed in the event handler.
Determines if Enable Double Buffer Surface method was called and double buffering using the Double Buffer Surface is enabled. Scroll Control) Scroll Control Mouse Controller checks this to see if it should cancel existing mouse operation and call Scroll Control Mouse Controller. That can happen when user activates another application or simply when styles for a child window have changed. Gets or sets a value indicating whether it toggles printing mode for the grid. Scroll Control) Gets or sets a value indicating whether Grid uses Image List_Draw Ex to draw cell images. Normally, cells that are not marked as enabled with Grid Style Info. You can hook into this mechanism by implementing an event handler for this event.
Each event will first be called on Grid Control Base Events Target before the actual event handler in this control is called. Otherwise the whole area is repainted (this is the default). Determines the next position for the current cell for a given direction. Enabled will be skipped but you can hook into this mechanism by implementing an event handler for Query Next Current Cell Position. If the cell is not in view, the grid will scroll the cell into view.