private void InitPop()
 {
     _popDic=new Dictionary<string, float>();
     if (String.IsNullOrEmpty(_selectedPopIndex)) return;
     ShapeOp op=new ShapeOp(CityFilePath);
     var pFeatureClass = op.OpenFeatureClass();
     var res = op.FindValue(pFeatureClass,"Name", SelectedPopIndex);
     foreach (var re in res)
     {
         _popDic.Add(re.Key,Convert.ToSingle(re.Value));
     }
 }
 private void InitDic()
 {
     ShapeOp shapeOp = new ShapeOp(CityFilePath);
     IFeatureClass pFeatureClass = shapeOp.OpenFeatureClass();
     var res = shapeOp.FindValue(pFeatureClass, "Name", SelectedIndex);
     foreach (var re in res)
     {
         CityValues.Add(re.Key,Convert.ToSingle(re.Value));
     }
 }