private string createFunction(
StringExpressionFunction function, string value)
{
StringBuilder filter = new StringBuilder();
paramseters.Add(value);
filter.Append(filterData.ValuePropertyBindingPath);
if (filterData.ValuePropertyType.IsGenericType &&
filterData.ValuePropertyType.GetGenericTypeDefinition() == typeof(Nullable <>))
{
filter.Append(".Value");
}
paramCounter.Increment();
paramCounter.Increment();
filter.Append(".ToString()." + function.ToString() + "(@" + (paramCounter.ParameterNumber - 1) + ", @" + (paramCounter.ParameterNumber) + ")");
if (function == StringExpressionFunction.IndexOf)
{
filter.Append(" != -1 ");
}
paramseters.Add(filterData.IsCaseSensitiveSearch
? StringComparison.CurrentCulture : StringComparison.CurrentCultureIgnoreCase);
return(filter.ToString());
}
private void createFilterExpression(
FilterData filterData, string queryString, StringBuilder filter, string operatorString)
{
filter.Append(filterData.ValuePropertyBindingPath);
object parameterValue = null;
if (trySetParameterValue(out parameterValue, queryString, filterData.ValuePropertyType))
{
Parameters.Add(parameterValue);
paramCounter.Increment();
filter.Append(" " + operatorString + " @" + paramCounter.ParameterNumber);
}
else
{
filter = new StringBuilder();//do not use filter
}
}
