我有2个表单,名字是HomeForm,第二个名字是cfgForm
我有变量,在HomeForm中命名为strCNF,在cfgForm中为变量CNF命名为strCNF。
这里是HomeForm的代码:
private void cnfRulesMenu_Click(object sender, EventArgs e)
{
try
{
cfgForm cfgForm = new cfgForm(this);
cfgForm.Show();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString(), "Error");
}
}
// other parts....
public cfgForm cfg;
string strCNF = "";
strCNF = ((cfgForm)this.cfg).CNF;
然后,在cfgForm的另一种形式中,这里是代码:
public string CNF = "S -> NP VP" + System.Environment.NewLine +
"NP -> DT NN | QT NN | NP PP | NP RC | n | p" + System.Environment.NewLine +
"DT -> d" + System.Environment.NewLine +
"NN -> JJ NN | n" + System.Environment.NewLine +
"JJ -> JJ JJ | j" + System.Environment.NewLine +
"QT -> q" + System.Environment.NewLine +
"PP -> PT NP | GG PP" + System.Environment.NewLine +
"PT -> i" + System.Environment.NewLine +
"GG -> g" + System.Environment.NewLine +
"RC -> WH NP | WH VP" + System.Environment.NewLine +
"WH -> w" + System.Environment.NewLine;
public cfgForm(HomeForm homeForm)
{
// TODO: Complete member initialization
InitializeComponent();
this.homeForm = homeForm;
}
private void btnDefaultCFG_Click(object sender, EventArgs e)
{
tbCNF.Text = CNF;
}
private void cfgForm_Load(object sender, EventArgs e)
{
tbCNF.Text = CNF;
btnApplyCNF.Enabled = false;
}
private void btnApplyCNF_Click(object sender, EventArgs e)
{
//CNF = "";
CNF = tbCNF.Text;
HomeForm homeForm = new HomeForm();
homeForm.cfg = this;
//homeForm.ShowDialog();
this.Hide();// doesn't work
}
到目前为止,那些代码运行良好,如果我使用homeForm.ShowDialog()。 我的意思是,在cnfRulesMenu_Click处于活动状态并且显示cfgForm支持HomeForm之后,我更新cfgForm中的CNF变量,然后返回HomeForm和cfgForm.Hide。但它给出了零值。
任何建议先生......
答案 0 :(得分:1)
因为您在这些代码中新增了另一个HomeForm
。
private void btnApplyCNF_Click(object sender, EventArgs e)
{
//CNF = "";
CNF = tbCNF.Text;
HomeForm homeForm = new HomeForm();
homeForm.cfg = this;
//homeForm.ShowDialog();
this.Hide();// doesn't work
}
因此,这些代码无法按您的意愿运作。
public cfgForm cfg;
string strCNF = "";
strCNF = ((cfgForm)this.cfg).CNF;
将代码修改为可能会解决您的问题,但我必须说这些架构没有意义。
private void btnApplyCNF_Click(object sender, EventArgs e)
{
//CNF = "";
CNF = tbCNF.Text;
this.homeForm.cfg = this;
//homeForm.ShowDialog();
this.Hide();// doesn't work
}