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Column value validation

Dear Sir/Madam,

I am using dhtmlxTreeGrid where I have 4 level tree (0 to 4). In this grid I would like to use the validation for adding and updating rows in different level.

For example.
When I am going to add the row at 2nd level then I want to validate the 0th column, and when I adding the row at 3rd level I have to validate 0th and 2nd column. same condition I want use while updating row.

But when I used myDataProcessor.setVerificator(2,checkSev); its showing validation message for all the level .
Please help me resolve this problem.

You can use setOnBeforeUpdateHandler instead of verificators

For example

dp.setOnBeforeUpdateHandler(function(id,operation){
      var level = grid.getLevel(id);
      if (some_check(id,level)) return true;//allow operation
      alert("validation error");
      return false;//deny operation
});