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Extjs CheckboxSelectionModel keepExisting

/ Published in: JavaScript
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  1. Ext.CheckboxSelectionModel.override({
  2.     handleMouseDown : function(g, rowIndex, e){
  3.         if(e.button !== 0 || this.isLocked()){
  4.             return;
  5.         };
  6.         var view = this.grid.getView();
  7.         if(e.shiftKey && this.last !== false){
  8.             var last = this.last;
  9.             this.selectRange(last, rowIndex, e.ctrlKey);
  10.             this.last = last; // reset the last
  11.             view.focusRow(rowIndex);
  12.         }else{
  13.             var isSelected = this.isSelected(rowIndex);
  14.             if(e.ctrlKey && isSelected){
  15.                 this.deselectRow(rowIndex);
  16.             }else if(!isSelected || this.getCount() > 1){
  17.                 this.selectRow(rowIndex, true);
  18.                 view.focusRow(rowIndex);
  19.             }
  20.         }
  21.     }
  22. });

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