How can I pass 2 values to my ValueConverters Class?

I have got this on my Xaml , I am passing value allocated to change gridcell colour. But I want to check also at same time Entered variable value so I can change according to that.How can I pass 2 values so I can have conditions o开发者_运维技巧n my iconverter class.

<DataGridTextColumn Binding="{Binding Allocated}" Header="Allocated" >
                     <DataGridTextColumn.ElementStyle>
                            <Style TargetType="{x:Type TextBlock}">
                                <Setter Property="Background" Value="{Binding Allocated, Converter={StaticResource converter}}"/>
                            </Style>
                        </DataGridTextColumn.ElementStyle>     </DataGridTextColumn>

my Converter class:

object IValueConverter.Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture){

         string input = value.ToString(); 

         switch (input) 
         { 
             case "99":
                 return Brushes.Green;
             case "96":
                 return Brushes.Green;
             case "91":
              default:   
                 return DependencyProperty.UnsetValue; 
         }

    }

Blockquote

Thanks in advance!

---

Use MultiBinding:

<DataGridTextColumn.ElementStyle>
    <Style TargetType="{x:Type TextBlock}">
        <Setter Property="Background">
            <Setter.Value>
                <MultiBinding Converter="{StaticResource converter}">
                    <Binding Path="Allocated" />
                    <Binding Path="Entered" />
                </MultiBinding>
            </Setter.Value>
        </Setter>
    </Style>
</DataGridTextColumn.ElementStyle>

and ake your convet implement IMultiValueConverter:

public class MyConverter : IMultiValueConverter
{
    public object Convert(object[] values, Type targetType, 
                          object parameter, CultureInfo culture)
    {...