How to concatenate the contents of variable in the name of label and others variables?

```
//labels: lbl_01_temp, lbl_02_temp, lbl_03_temp
string XX;
double id_01_temp, id_02_temp, id_03_temp;
lbl_XX_temp.Text= "The Device " +XX+ "has" +id_XX_temp+" ℃";  

```