>After changing value in Dropdown list it changed my variable type. That variable is bounded to this list.
>Before I have (for e.g.) 2
>After I have 2.00
>And Dropdown list displays empty string instead of value.
>
>Giedrius

The problem I had with changing variable type was with a numeric value being changed to character. What I did was set the initial properties for Value and DisplayValue to 0 [zero]. You might try setting your initial values to = "". Include the equal sign in setting these property values.