我即将放弃这一点,我试图将一个字符串传递给另一个类,并在该类中保存到列表中,但它不会这样做。我知道List存在并且工作,因为我制作了一个按钮,将一个字符串放入该列表并在列表框中显示。但由于某种原因,我不能让它在传递的字符串上工作。不接受从另一个类传递的值的变量
这是两个winforms让我们的用户给出的信息,然后它的处理和传递给另一个类,然后应保存到列表中,然后我要求更新应显示在列表框中的列表。
的MainForm(带有列表框)
public partial class MainForm : Form
{
List<string> m_customers = new List<string>();
public MainForm()
{
InitializeComponent();
}
public void StringToList(string strnew)
{
m_customers.Add(strnew);
Updatelistbox();
foreach (string custom in m_customers)
{
lstRegistry.Items.Add(custom);
}
}
private void strtest(string strnew)
{
string userinfo = strnew;
m_customers.Add(userinfo);
}
private void Updatelistbox()
{
lstRegistry.Items.Clear();
for (int index = 0; index < m_customers.Count; index++)
{
lstRegistry.Items.Add(m_customers[index]);
}
}
private void button1_Click(object sender, EventArgs e)
{
using (ContactForm frm = new ContactForm())
{
frm.ShowDialog();
}
}
private void button2_Click(object sender, EventArgs e)
{
lstRegistry.Items.Add("Hey this works atleast...");
m_customers.Add("add this to List"); //This works as this line becomes more and more.
foreach (string custom in m_customers)
{
lstRegistry.Items.Add(custom);
}
}
}
的inputform
public partial class ContactForm : Form
{
private ContactFiles.Contact m_contact = new ContactFiles.Contact();
private ContactFiles.Email m_email = new ContactFiles.Email();
private ContactFiles.Phone m_phone = new ContactFiles.Phone();
private ContactFiles.Adress m_adress = new ContactFiles.Adress();
private bool m_closeForm;
public ContactForm()
{
InitializeComponent();
InitializeGUI();
}
private void InitializeGUI()
{
txtFirstName.Text = string.Empty;
txtLastName.Text = string.Empty;
txtHomePhone.Text = string.Empty;
txtCellPhone.Text = string.Empty;
txtEmailBusiness.Text = string.Empty;
txtEmailPrivate.Text = string.Empty;
txtStreet.Text = string.Empty;
txtCity.Text = string.Empty;
txtZipCode.Text = string.Empty;
FillCountryComboBox();
cmbCountries.Items.AddRange(FillCountryComboBox()); cmbCountries.SelectedIndex = 5;
m_closeForm = true;
}
public string[] FillCountryComboBox()
{
string[] m_countryStrings = Enum.GetNames(typeof(Countries));
for (int index = 0; index < m_countryStrings.Length - 1; index++)
{
m_countryStrings[index] = m_countryStrings[index].Replace("_", " ");
}
return m_countryStrings;
}
private void btnOK_Click(object sender, EventArgs e)
{
string a_country = cmbCountries.SelectedItem.ToString();
var oAdress = new ContactFiles.Adress(txtStreet.Text, txtCity.Text, txtZipCode.Text, a_country);
string adresslist = oAdress.ToString();
var oEmail = new ContactFiles.Email(txtEmailBusiness.Text, txtEmailPrivate.Text);
string emaillist = oEmail.ToString();
var oPhones = new ContactFiles.Phone(txtHomePhone.Text, txtCellPhone.Text);
string phonelist = oPhones.ToString();
//This is actually working, the string is passed OK.
//MainForm strin = new MainForm();
var oContact = new ContactFiles.Contact(txtFirstName.Text, txtLastName.Text);
string namelist = oContact.ToString();
//Create string from input and send to MainForm.StringToList()
MainForm instance = new MainForm();
string strnew = string.Format("{0,-3} {1, -10} {2, -20} {3, -30}", namelist, phonelist, emaillist, adresslist);
instance.StringToList(strnew);
this.Close();
}
private ContactFiles.Contact Contacts
{
get { return m_contact; }
set
{
if (value != null)
m_contact = value;
}
}
public ContactFiles.Email Email
{
get { return m_email; }
set
{
if (value != null)
m_email = value;
}
}
public ContactFiles.Phone Phone
{
get { return m_phone; }
set
{
if (value != null)
m_phone = value;
}
}
private ContactFiles.Adress Adress
{
get { return m_adress; }
set
{
if (value != null)
m_adress = value;
}
}
private void ContactForm_FormClosing(object sender, FormClosingEventArgs e)
{
if (m_closeForm)
e.Cancel = false; //Close the Contact form.
else
e.Cancel = true; //Do not close (user has chosen Cancel)
}
}
有,你可以看到一些更多的类来处理包含构造的用户输入,但他们作为一切工作我可以从所有的用户输入创建字符串,但然后我失败了大量的时间,我和它的像3天现在,我仍然无法找到问题。 :'(
就如何解决我的问题,任何想法,我只是不能找到问题
描述为“不起作用”。运行时异常或编译错误? – 2012-08-07 20:54:20
你可以指定它在所有代码中实际失败的位置吗?什么是将字符串设置为目标变量,以及在哪一行读取它,并期望它在那里时不在那里? – David 2012-08-07 20:54:39
列表没有得到该值。 – user1501127 2012-08-07 20:54:49