Question

it hit me an error in this line:foreach(var textBox in textBoxes).it doesn t recognise the:textBoxes.i try to write as TextBox and hits me again an error.i have the Visual C# 2010 Express edition

public Form1()
{
    InitializeComponent();

    private TextBox[] TextBoxes = {textBox1, textBox2, textBox3, textBox4, textBox5, textBox6};

    private List<string> storeItems = new List<string>();
}

private void button1_Click(object sender, EventArgs e)
{
    var buffer = new StringBuilder();
    foreach(var textBox in textBoxes)
    {
        if (string.IsNullOrEmpty(textBox.Text))
        {
            textBox.BackColor = Color.FromName("LightSalmon");
            MessageBox.Show("This item cannot be left blank");
            textBox.Focus();
            return;
        }
        textBox.BackColor = Colors.FromName("Window");
        buffer.Append(textBox.Text);
    }

    var result = buffer.ToString();
    storeItems.Add(result);
    System.IO.File.AppendAllText(@"C:UsersvDesktop	ext.txt", Environment.NewLine + result);
}

Answer 1

它希望你重新努力在建筑商内建造田地。你们可以这样做,相反:

private TextBox[] TextBoxes = {textBox1, textBox2, textBox3, textBox4, textBox5, textBox6};

private List<string> storeItems = new List<string>();

public Form1()
{
    InitializeComponent();
}

它也认为,资本化是错误的。 <代码>TextBoxes在C#中不同于textBoxes。

Answer 2

This line is placed in the wrong place.

private TextBox[] TextBoxes = {textBox1, textBox2, textBox3, textBox4, textBox5, textBox6};

Your variable TextBox is recognized only in the constructor. You have to place it in the class, not in a method of the class.

For example after this line:

public partial class Form1 : Form

Or even like this:

public Form1()
{
    InitializeComponent();

    private TextBox[] TextBoxes = {textBox1, textBox2, textBox3, textBox4, textBox5, textBox6};

    private List<string> storeItems = new List<string>();
}
private TextBox[] TextBoxes = {textBox1, textBox2, textBox3, textBox4, textBox5, textBox6};
private void button1_Click(object sender, EventArgs e)
{

Edit: As Svick said, this line too is not in the right place:

private List<string> storeItems = new List<string>();

Follow the same rule for it.

Answer 3

Could it be that your array TextBoxes is capitalized while you re trying to foreach through textBoxes?

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