[ACCEPTED]-How to use floats with TrackBar-controls
You can use a multiplier. Say, for example, you 11 wanted to make your TrackBar control go 10 from 0 - 5 with 0.01 increments. Just set 9 the Minimum to 0, the Maximum to 500, and 8 increment by 1.
When you go to set your float 7 value, multiply it by 100, and use that 6 for the TrackBar value.
You should be able 5 to get any (realistic) degree of precision 4 in this manner, since the TrackBar works 3 with ints, and has the full data range of 2 Int32 available. This is much more precision 1 than a user interface requires.
Another idea would be to inherit from TrackBar and simulate 4 float values in a custom class in the way 3 Reed Copsey suggested to use ints and multiply 2 with a precision factor.
The following works 1 pretty neat for small float values:
class FloatTrackBar: TrackBar
{
private float precision = 0.01f;
public float Precision
{
get { return precision; }
set
{
precision = value;
// todo: update the 5 properties below
}
}
public new float LargeChange
{ get { return base.LargeChange * precision; } set { base.LargeChange = (int) (value / precision); } }
public new float Maximum
{ get { return base.Maximum * precision; } set { base.Maximum = (int) (value / precision); } }
public new float Minimum
{ get { return base.Minimum * precision; } set { base.Minimum = (int) (value / precision); } }
public new float SmallChange
{ get { return base.SmallChange * precision; } set { base.SmallChange = (int) (value / precision); } }
public new float Value
{ get { return base.Value * precision; } set { base.Value = (int) (value / precision); } }
}
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