Remove the default behavior of keyboard

Remove the default behavior of keyboard

Posted by: priya_mehta on 27 August 2018, 12:06 am EST

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  priya_mehta

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  Posted 27 August 2018, 12:06 am EST

  If i select the the Ctrl+A and Press Delete Key from the Keyboard
  
  It should be delete the all rows

  how can i prevent?

• 

  sharad.tomer

  

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  Posted 27 August 2018, 9:23 pm EST

  Hi,
  
  If we understand correctly you would like to stop the grid from deleting all the rows at once.
  
  To achieve this you need to handle the mousedown event and call preventDefault() if keyPressed is del key and all of the grid rows are selected.
  
  Please refer to the following code snippet:-

  grid.hostElement.addEventListener('keydown',(e)=>{
        	if(e.keyCode != wijmo.Key.Delete){
          	return;
          }        
          //key pressed is delete check if all rows are not selected
          let sel = grid.selection;
          let fullRange = new wijmo.grid.CellRange(0, 0, grid.rows.length-1, grid.columns.length-1);
          if(sel.contains(fullRange) && grid.rows.length>1){
          	e.preventDefault();
          }
        },true);
  

  You may also refer to the following fiddle for complete implementation:- https://jsfiddle.net/pt94gLnc/1/

  If you had a different requirement then please feel free to explain more about it.

  ~Sharad