constructor

• new FilteringExpressionsTree(operator, fieldName?): FilteringExpressionsTree

• Parameters

  • operator: FilteringLogic

  • fieldName: string

  Returns FilteringExpressionsTree

OptionalfieldName

 gridExpressionTree.fieldName = 'Column Field';
Copy

let columnField = expressionTree.fieldName;
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filteringOperands

const gridExpressionsTree = new FilteringExpressionsTree(FilteringLogic.And);
const expression = [
{
  condition: IgxStringFilteringOperand.instance().condition('contains'),
  fieldName: 'Column Field',
  searchVal: 'Value',
  ignoreCase: false
}];
gridExpressionsTree.filteringOperands.push(expression);
this.grid.filteringExpressionsTree = gridExpressionsTree;
Copy

let filteringOperands = gridExpressionsTree.filteringOperands;
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operator

gridExpressionsTree.operator = FilteringLogic.And;
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let operator = gridExpressionsTree.operator;
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Optionaltype

 gridExpressionTree.type = FilteringExpressionsTree.Advanced;
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let type = expressionTree.type;
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find

• find(fieldName): IFilteringExpression | IFilteringExpressionsTree

• Returns the filtering expression for a column with the provided fieldName.

  let filteringExpression = gridExpressionTree.find('Column Field');
  Copy

  Memberof

  FilteringExpressionsTree

  Deprecated

  in version 18.2.0. Use ExpressionsTreeUtil.find instead.

  Parameters

  • fieldName: string

  Returns IFilteringExpression | IFilteringExpressionsTree

findIndex

• findIndex(fieldName): number

• Returns the index of the filtering expression for a column with the provided fieldName.

  let filteringExpressionIndex = gridExpressionTree.findIndex('Column Field');
  Copy

  Memberof

  FilteringExpressionsTree

  Deprecated

  in version 18.2.0. Use ExpressionsTreeUtil.findIndex instead.

  Parameters

  • fieldName: string

  Returns number

Staticempty

• empty(expressionTree): boolean

• Checks if filtering expressions tree is empty.

  Parameters

  • expressionTree: IFilteringExpressionsTree

    filtering expressions tree.

  Returns boolean