LessCSS - IE gradient filter with variables and lighten

Question

I need to have an IE gradient filter in Less CSS with a variable and lighten. Is this possible?

#whatever {
    filter:progid:DXImageTransform.Microsoft.gra         


        

Answer 1

You can insert variables into string and "print them" in process of concatenation.Empty string need for get string as rezult of concatenation. All variables will be insert into string

@filterStr: "progid:DXImageTransform.Microsoft.gradient( startColorstr='@{upper}', endColorstr='@{bottom})',GradientType=1 )";
@emptyStr: "";
filter:e(@filterStr+@emptyStr);