How to display enum values in datagridview column

Question

I have this Database, not of my design but I have to work with it, that contains a table like so :

 id  |   Name     |  status  | ...
-----+------------+-------         


        

Answer 1

You can use the CellTemplate property of the respective column. So first create a class for the cell template, overriding GetFormattedValue

public class VATGridViewTextBoxCell : DataGridViewTextBoxCell
{
    protected override object GetFormattedValue(object value, int rowIndex, ref DataGridViewCellStyle cellStyle, TypeConverter valueTypeConverter, TypeConverter formattedValueTypeConverter, DataGridViewDataErrorContexts context)
    {
        Price.VATRateEnum r = (Price.VATRateEnum)(int)value;
        switch (r)
        {
            case Price.VATRateEnum.None: return "0%";
            case Price.VATRateEnum.Low: return "14%";
            case Price.VATRateEnum.Standard: return "20%";
            default:
                throw new NotImplementedException()
        }
    }
}

then assign new instances of it to the columns' cell templates. Note that the change does not take effect until you refresh the grid and that's why I put it into the constructor:

public frmGoods()
{
    InitializeComponent();
    this.sellingVATDataGridViewTextBoxColumn.CellTemplate = new VATGridViewTextBoxCell();
    this.buyingVATDataGridViewTextBoxColumn.CellTemplate = new VATGridViewTextBoxCell();
}