private void SetFieldByLegendType(LegendType aLT)
{
if (_mapLayer.LayerType == LayerTypes.VectorLayer)
{
VectorLayer aLayer = (VectorLayer)_mapLayer;
switch (aLT)
{
case LegendType.SingleSymbol:
CB_Field.Enabled = false;
CB_Field.Text = "<None>";
CreateLegendScheme(aLT, "");
break;
case LegendType.UniqueValue:
CB_Field.Enabled = true;
CB_Field.Items.Clear();
foreach (string fn in aLayer.GetFieldNameList())
{
CB_Field.Items.Add(fn);
}
CB_Field.Text = "<None>";
break;
case LegendType.GraduatedColor:
CB_Field.Enabled = true;
CB_Field.Items.Clear();
for (int i = 0; i < aLayer.NumFields; i++)
{
if (MIMath.IsNumeric(aLayer.GetField(i)))
{
CB_Field.Items.Add(aLayer.GetFieldName(i));
}
}
CB_Field.Text = "<None>";
break;
}
}
}
