private void WeightTextBox_Click(object sender, EventArgs e) { WeightTextBox.SelectAll(); }
/** * <summary> * This eventhandler calculate the BMI and display on the textboxes * </summary> * * @method CalculateButton_Click * @param {object} sender * @param {EventArgs} e */ private void CalculateButton_Click(object sender, EventArgs e) { // local variables double height = 0, weight = 0, BMI; try { height = Convert.ToDouble(HeightTextBox.Text); weight = Convert.ToDouble(WeightTextBox.Text); } catch (FormatException) { MessageBox.Show("Fill out the forms"); } if (HeightTextBox.Text == "" || WeightTextBox.Text == "") { HeightTextBox.Focus(); HeightTextBox.SelectAll(); WeightTextBox.Focus(); WeightTextBox.SelectAll(); } else if (height < 0 || weight < 0) { MessageBox.Show("Please provide positive values"); } else if (height > 0 && weight > 0) { // in case the input is in imperial if (ImperialButton.Checked == true) { // calculate BMI in imperial BMI = (weight * 703) / (height * height); // condition to set progress bar value if (((BMI / 30) * 100) > 100) { BMIProgressBar.Value = 100; } else { BMIProgressBar.Value = ((int)((BMI / 30) * 100)); } BMIResultBox.Text = string.Format("{0:f1}", BMI); BMIResultBox.BackColor = Color.LightSalmon; BMIScaleBox.BackColor = Color.LightSalmon; // determine the BMI if (BMI < 18.5) { this.BMIScaleBox.Text = ("Underweight"); BMIProgressBar.ForeColor = Color.Yellow; } else if (BMI >= 18.5 && BMI <= 24.9) { this.BMIScaleBox.Text = ("Normal"); BMIProgressBar.ForeColor = Color.Green; } else if (BMI >= 25 && BMI <= 29.9) { this.BMIScaleBox.Text = ("Overweight"); BMIProgressBar.ForeColor = Color.DarkGreen; } else if (BMI >= 30) { this.BMIScaleBox.Text = ("Obese"); BMIProgressBar.ForeColor = Color.Red; } } // in case the input is in metric units else if (MetricUnitsButton.Checked == true) { // calculate BMI in metric units BMI = weight / ((height * height) / 10000); // condition to set progress bar value if (((BMI / 30) * 100) > 100) { BMIProgressBar.Value = 100; } else { BMIProgressBar.Value = ((int)((BMI / 30) * 100)); } BMIResultBox.Text = string.Format("{0:f1}", BMI); BMIResultBox.BackColor = Color.LightSalmon; BMIScaleBox.BackColor = Color.LightSalmon; BMIProgressBar.Maximum = 100; // determine the BMI if (BMI < 18.5) { this.BMIScaleBox.Text = ("Underweight"); BMIProgressBar.ForeColor = Color.Yellow; } else if (BMI >= 18.5 && BMI <= 24.9) { this.BMIScaleBox.Text = ("Normal"); BMIProgressBar.ForeColor = Color.Green; } else if (BMI >= 25 && BMI <= 29.9) { this.BMIScaleBox.Text = ("Overweight"); BMIProgressBar.ForeColor = Color.DarkGreen; } else if (BMI >= 30) { this.BMIScaleBox.Text = ("Obese"); BMIProgressBar.ForeColor = Color.Red; } } } }