Question

我收到了一些错误，而且我的代码还没有完成。我正在使用另一个Stackoverflow问题来设置它，但它不适合我的需要。

我有三个文本文件，数据用逗号分隔，例如“Name，25,25.6”，因此字符串，int，decimal。我有三个文本文件，有三列，相同的数据类型，但只是不同的名称/数字。

我有三个不同的列表框，我想将它们拆分成但我无法将三个不同的拆分列表项分成三个不同的列表框。我将复制并粘贴我拥有的所有代码。我还使用一个组合框允许用户选择他们想要加载到组合框中的文件，我相信我做对了。

我得到的错误在displayLists（）中，它在lstItemName.DataSource = Inventory上说明;在当前上下文中不存在库存的行。还有很多其他错误。

任何帮助将不胜感激，我将复制并粘贴我的代码。我有一个Windows窗体，我在C＃中使用Visual Studio Express 2012

namespace TCSCapstone
{
public partial class frmInventory : Form
{
    public frmInventory()
    {
        InitializeComponent();
    }

    string cstrItemName;
    int cintNumberOfItems;
    decimal cdecPrice;
    decimal cdecTotalPrices;

    string selectedList = "";

    private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        selectedList = this.cmbList.GetItemText(this.cmbList.SelectedItem);

        if (selectedList == "Creative Construction")//if the selected combo 
box item equals the exact string selected
        {
            selectedList = "creative"; //then the string equals creative, 
which is creative.txt but I add the .txt in the btnLoadInfo method
        } else if (selectedList == "Paradise Building")
        {
            selectedList = "paradise";//this is for paradise.txt
        }
        else if (selectedList == "Sitler Construction")
        {
            selectedList = "sitler";//this is for sitler.txt
        }
        else
        {
            MessageBox.Show("Please select one of the items.");
        }
    }

    private void btnLoadInfo_Click(object sender, EventArgs e)
    {
        List<frmInventory> Inventory = new List<frmInventory>();
        using (StreamReader invReader = new StreamReader(selectedList + 
".txt"))
        {
            while (invReader.Peek() >= 0)
            {
                string str;
                string[] strArray;
                str = invReader.ReadLine();

                strArray = str.Split(',');
                frmInventory currentItem = new frmInventory();
                currentItem.cstrItemName = strArray[0];
                currentItem.cintNumberOfItems = int.Parse(strArray[1]);
                currentItem.cdecPrice = decimal.Parse(strArray[2]);

                Inventory.Add(currentItem);

            }
        }
        displayLists();
    }//end of btnLoadInfo

    void displayLists()
    {
        int i;
        lstItemName.Items.Clear();
        lstNumberOfItems.Items.Clear();
        lstPrice.Items.Clear();
        lstTotalPrices.Items.Clear();

        lstItemName.DataSource = Inventory;
        lstItemName.ValueMember = "cstrItemName";
        lstItemName.DisplayMember = "cintNumberOfItems";
    }

}//end of frmInventory
}//end of namespace

Answer 1

我不知道这是否正是你所需要的，但尝试这样的事情：

public partial class Form2 : Form
{

    List<Inventory> inventory;
    public Form2()
    {
        InitializeComponent();
    }

    public void ReadFiles()
    {
        if (inventory == null)
            inventory = new List<Inventory>();

        using (TextReader r = new StreamReader("file.txt"))
        {
            string line = null;
            while ((line = r.ReadLine()) != null)
            {
                string[] fields = line.Split(',');
                Inventory obj = new Inventory();
                obj.Name = fields[0];
                obj.Qtd = Convert.ToInt32(fields[1]);
                obj.Price = Convert.ToInt32(fields[2]);

                inventory.Add(obj);
            }
        }

        SetDataSourceList();


    }

    public void SetDataSourceList()
    {
        listBox1.DisplayMember = "Name";
        listBox2.DisplayMember = "Qtd";
        listBox3.DisplayMember = "Price";
        listBox1.DataSource =
            listBox2.DataSource = 
            listBox3.DataSource =
            inventory;
    }



}

public class Inventory
{
    public string Name { get; set; }
    public int Qtd { get; set; }
    public decimal Price { get; set; }
}

C＃从多个文本文件中读取，将行拆分为List，然后加载到ListBox中

1 个答案: