Coding Geek

SilverLight Text Formatting

There are scenarios when you want to Format the bound string value for example you want to display the long names as nadeemIq... or display a different value based on the bound string value & get back the original value.

So here is IValueConverter interface which is used to achieve such scenarios in SilverLight. 

 public class TextFormatConverter : IValueConverter
    {
        string orgValue = "";
        int maxLength = 15;

        #region IValueConverter Members
        public int MaxLength {
            get
            {
                return maxLength;
            }

            set
            {
                maxLength = value;
            }
        }

        object IValueConverter.Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            String val = value as string;
            orgValue = val;

            string newStr = "";

            if (val.Length > MaxLength)
            {
                newStr = val.Substring(0, MaxLength);

                newStr = newStr + "...";

                return newStr;

            }
            else
            {
                return orgValue;
            }
            
           
        }

        object IValueConverter.ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return orgValue;
        }

        #endregion
    }

Above is the complete code of TextFormat class which you can use and customize it.

Moreover you can use it as follows;

 above code specify the User resource in XAML file.

 And above line specify the TextBlock whom to apply formating.