SSIS Custom Component - Update output columns automatically based on selected input columns

Hi,

I have the following code that creates output columns dynamically based on the input columns in a custom SSIS component:

// Create corresponding output columns dynamically
            IDTSOutput100 output = ComponentMetaData.OutputCollection[0];

            foreach (IDTSInputColumn100 inputcolumn in input.InputColumnCollection)
            {
                bool IsExist = false;
                foreach (IDTSOutputColumn100 OutputColumn in output.OutputColumnCollection)
                {
                    if (OutputColumn.Name == inputcolumn.Name)
                    {
                        IsExist = true;
                    }
                }

                if (!IsExist)
                {
                    IDTSOutputColumn100 outputcol = output.OutputColumnCollection.New();
                    outputcol.Name = inputcolumn.Name;
                    outputcol.Description = inputcolumn.Name;
                    outputcol.SetDataTypeProperties(inputcolumn.DataType, inputcolumn.Length, inputcolumn.Precision, inputcolumn.Scale, inputcolumn.CodePage);
                }
            }

This code works perfectly, but I want to update it so that if I unselect a column in the advanced editor of the component (in the input columns tab), then the corresponding output column is deleted too.

Does anyone know how to do this?

Thanks