I am working on an visual basic program that takes a user input of scores that a

ID: 3889696 • Letter: I

Question

I am working on an visual basic program that takes a user input of scores that are entered and then adds them to an array list but i am trying to figure out how to remove the current count variable that i have declared and use the array list to retrieve the count from that. Another thing that i cant seem to figure out is to throw an error when the user enteres a number Less than 0. Finally when the user clicks display button they should see a sorted list in a messagebox

/////////////////////////////////////////This is what i have in the form designer

private void InitializeComponent()
{
this.lblScore = new System.Windows.Forms.Label();
this.lblScoreTotal = new System.Windows.Forms.Label();
this.lblScoreCount = new System.Windows.Forms.Label();
this.lblAverage = new System.Windows.Forms.Label();
this.btnDisplay = new System.Windows.Forms.Button();
this.btnClearScores = new System.Windows.Forms.Button();
this.btnExit = new System.Windows.Forms.Button();
this.btnAdd = new System.Windows.Forms.Button();
this.txtScore = new System.Windows.Forms.TextBox();
this.txtScoreTotal = new System.Windows.Forms.TextBox();
this.txtScoreCount = new System.Windows.Forms.TextBox();
this.txtAverage = new System.Windows.Forms.TextBox();
this.SuspendLayout();
//
// lblScore
//
this.lblScore.AutoSize = true;
this.lblScore.Location = new System.Drawing.Point(12, 27);
this.lblScore.Name = "lblScore";
this.lblScore.Size = new System.Drawing.Size(38, 13);
this.lblScore.TabIndex = 0;
this.lblScore.Text = "Score:";
//
// lblScoreTotal
//
this.lblScoreTotal.AutoSize = true;
this.lblScoreTotal.Location = new System.Drawing.Point(12, 56);
this.lblScoreTotal.Name = "lblScoreTotal";
this.lblScoreTotal.Size = new System.Drawing.Size(65, 13);
this.lblScoreTotal.TabIndex = 1;
this.lblScoreTotal.Text = "Score Total:";
//
// lblScoreCount
//
this.lblScoreCount.AutoSize = true;
this.lblScoreCount.Location = new System.Drawing.Point(12, 83);
this.lblScoreCount.Name = "lblScoreCount";
this.lblScoreCount.Size = new System.Drawing.Size(69, 13);
this.lblScoreCount.TabIndex = 2;
this.lblScoreCount.Text = "Score Count:";
//
// lblAverage
//
this.lblAverage.AutoSize = true;
this.lblAverage.Location = new System.Drawing.Point(12, 111);
this.lblAverage.Name = "lblAverage";
this.lblAverage.Size = new System.Drawing.Size(50, 13);
this.lblAverage.TabIndex = 3;
this.lblAverage.Text = "Average:";
//
// btnDisplay
//
this.btnDisplay.Location = new System.Drawing.Point(29, 148);
this.btnDisplay.Name = "btnDisplay";
this.btnDisplay.Size = new System.Drawing.Size(91, 23);
this.btnDisplay.TabIndex = 2;
this.btnDisplay.Text = "&Display Scores";
this.btnDisplay.UseVisualStyleBackColor = true;
this.btnDisplay.Click += new System.EventHandler(this.btnDisplay_Click);
//
// btnClearScores
//
this.btnClearScores.Location = new System.Drawing.Point(136, 148);
this.btnClearScores.Name = "btnClearScores";
this.btnClearScores.Size = new System.Drawing.Size(91, 23);
this.btnClearScores.TabIndex = 3;
this.btnClearScores.Text = "&Clear Scores";
this.btnClearScores.UseVisualStyleBackColor = true;
this.btnClearScores.Click += new System.EventHandler(this.btnClearScores_Click);
//
// btnExit
//
this.btnExit.DialogResult = System.Windows.Forms.DialogResult.Cancel;
this.btnExit.Location = new System.Drawing.Point(152, 177);
this.btnExit.Name = "btnExit";
this.btnExit.Size = new System.Drawing.Size(75, 23);
this.btnExit.TabIndex = 4;
this.btnExit.Text = "E&xit";
this.btnExit.UseVisualStyleBackColor = true;
this.btnExit.Click += new System.EventHandler(this.btnExit_Click);
//
// btnAdd
//
this.btnAdd.Location = new System.Drawing.Point(159, 22);
this.btnAdd.Name = "btnAdd";
this.btnAdd.Size = new System.Drawing.Size(68, 23);
this.btnAdd.TabIndex = 1;
this.btnAdd.Text = "&Add";
this.btnAdd.UseVisualStyleBackColor = true;
this.btnAdd.Click += new System.EventHandler(this.btnAdd_Click);
//
// txtScore
//
this.txtScore.Location = new System.Drawing.Point(90, 24);
this.txtScore.Name = "txtScore";
this.txtScore.Size = new System.Drawing.Size(63, 20);
this.txtScore.TabIndex = 0;
//
// txtScoreTotal
//
this.txtScoreTotal.Location = new System.Drawing.Point(90, 53);
this.txtScoreTotal.Name = "txtScoreTotal";
this.txtScoreTotal.ReadOnly = true;
this.txtScoreTotal.Size = new System.Drawing.Size(63, 20);
this.txtScoreTotal.TabIndex = 9;
//
// txtScoreCount
//
this.txtScoreCount.Location = new System.Drawing.Point(90, 80);
this.txtScoreCount.Name = "txtScoreCount";
this.txtScoreCount.ReadOnly = true;
this.txtScoreCount.Size = new System.Drawing.Size(63, 20);
this.txtScoreCount.TabIndex = 10;
//
// txtAverage
//
this.txtAverage.Location = new System.Drawing.Point(90, 108);
this.txtAverage.Name = "txtAverage";
this.txtAverage.ReadOnly = true;
this.txtAverage.Size = new System.Drawing.Size(63, 20);
this.txtAverage.TabIndex = 11;
//
// frmScoreCalculatorList
//
this.AcceptButton = this.btnAdd;
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.CancelButton = this.btnExit;
this.ClientSize = new System.Drawing.Size(244, 223);
this.Controls.Add(this.txtAverage);
this.Controls.Add(this.txtScoreCount);
this.Controls.Add(this.txtScoreTotal);
this.Controls.Add(this.txtScore);
this.Controls.Add(this.btnAdd);
this.Controls.Add(this.btnExit);
this.Controls.Add(this.btnClearScores);
this.Controls.Add(this.btnDisplay);
this.Controls.Add(this.lblAverage);
this.Controls.Add(this.lblScoreCount);
this.Controls.Add(this.lblScoreTotal);
this.Controls.Add(this.lblScore);
this.Name = "frmScoreCalculatorList";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "Score Calculator";
this.ResumeLayout(false);
this.PerformLayout();

}

/////////////////////////////////////////////////This is the code that i have so far

public partial class frmScoreCalculatorList : Form
{
public frmScoreCalculatorList()
{
InitializeComponent();
}
int total = 0;
int count = 0;
List<int> myData = new List<int>(20);

private void btnAdd_Click(object sender, EventArgs e)
{
int score = Convert.ToInt32(txtScore.Text);
myData.Add(score);
total += score;
count += 1;
int average = total / count;
txtScoreTotal.Text = total.ToString();
txtScoreCount.Text = count.ToString();
txtAverage.Text = average.ToString();
txtScore.Focus();
}

private void btnDisplay_Click(object sender, EventArgs e)
{
myData.Sort();
string scoresString = "";
foreach (int i in myData)
if (i != 0)
{
scoresString += i.ToString() + " ";
}
MessageBox.Show(scoresString, "Sorted Scores");
txtScore.Focus();
}

private void btnClearScores_Click(object sender, EventArgs e)
{
total = 0;
txtScore.Text = "";
txtScoreTotal.Text = "";
txtScoreCount.Text = "";
txtAverage.Text = "";
txtScore.Focus();
myData = new List<int>();
}

private void btnExit_Click(object sender, EventArgs e)
{
this.Close();
}
}

Explanation / Answer

THE CODE IS CORRECT

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I am working on an visual basic program that takes a user input of scores that a

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