Cannot trim closed bracket from vb.net string -

i have issue trimming string in vb.net

dim bgcolor1 string = (foundrows(count).item(16).tostring())   'this returns color [indigo] need indigo vb.net can read it.  'so used  dim mychar() char = {"c", "o", "l", "r", "[", "]", " "} dim firstbgcolorbgcolor1 string = bgcolor1.trimstart(mychar)  'but ] still in string looks indigo] 

any ideas on why cannot trim ]?

update

didn't see input "color [indigo]". not recommend trimstart() & trimend()

you have variety of options choose from:

imports system imports system.text.regularexpressions  public module module1     public sub main()         dim color string = "color [indigo]"          ' substring() & indexof()         dim openbracket = color.indexof("[") + 1         dim closebracket = color.indexof("]")         console.writeline(color.substring(openbracket, closebracket - openbracket))          ' replace()         console.writeline(color.replace("color [", string.empty).replace("]", string.empty))          ' regex.replace()         console.writeline(regex.replace(color, "color \[|\]", string.empty))          ' regex.match()         console.writeline(regex.match(color, "\[(\w+)\]").groups(1))      end sub end module 

results:

indigo indigo indigo indigo 

demo