ClientDataSet With Incremental Refresh

建立一个四箭头的球，当点击球时，就会触发事件，x,y值的增减取决于您点击球的位置-Height-directions trackball This component creates a graphical ball with four-way arrows. If you click on the ball, an event is triggered with X and Y incremental values depending on where you click on the

强大的工具EhLib.v5.6.215.Full.Source-The Library contains several components and objects. TDBGridEh component TDBGridEh provides all functionality of TDBGrid and adds several new features as follows: Allows to select records, columns and r