在一天中的大部分时间里，我一直在疯狂地试图让它发挥作用。
我的代码中有几个类。我将尝试在下面发布相关代码并使其尽可能简短
public class ServerSettings
{
private BindingList<Server> serverList = new BindingList<Server>();
public ServerSettings()
{
}
private void readSettings()
{
string list = "/Settings/Server";
XmlNodeList Xn = settings.SelectNodes(list);
foreach (XmlNode xNode in Xn)
{
Server tmpSrv = new Server();
for (int i=0; i<xNode.ChildNodes.Count; i++)
{
if(xNode.ChildNodes[i].Name == "Name")
tmpSrv.Name = xNode.ChildNodes[i].InnerText;
else if(xNode.ChildNodes[i].Name == "Host")
tmpSrv.Host = xNode.ChildNodes[i].InnerText;
else if(xNode.ChildNodes[i].Name == "Username")
tmpSrv.Username = xNode.ChildNodes[i].InnerText;
else if(xNode.ChildNodes[i].Name == "Password")
tmpSrv.Password = xNode.ChildNodes[i].InnerText;
}
tmpSrv.ID = xNode.Attributes["ID"].Value;
serverList.Add(tmpSrv);
}
}
public BindingList<Server> getServerList()
{
return serverList;
}
public void setServer(Server srv, bool isNew)
{
if(isNew)
{
serverList.Add(srv);
srvCount++;
}
else
{
string list = "/Settings/Server[@ID='"+srv.ID+"']";
XmlNodeList Xn = settings.SelectNodes(list);
if(Xn.Count == 1)
{
XmlNode srvNode = Xn[0];
for (int i=0; i<srvNode.ChildNodes.Count; i++)
{
if(srvNode.ChildNodes[i].Name == "Name")
srvNode.ChildNodes[i].InnerText = srv.Name;
else if(srvNode.ChildNodes[i].Name == "Host")
srvNode.ChildNodes[i].InnerText = srv.Host;
else if(srvNode.ChildNodes[i].Name == "Username")
srvNode.ChildNodes[i].InnerText = srv.Username;
else if(srvNode.ChildNodes[i].Name == "Password")
srvNode.ChildNodes[i].InnerText = srv.Password;
}
}
}
}
}
在另一个表单类中，我有以下函数，在程序启动时调用一次
public void populateServerListBox(ref BindingList<Server> srvList)
{
this.serverListBox.DisplayMember = "Name";
this.serverListBox.DataSource = srvList;
}
最后
public partial class NewServerForm : Form
{
private bool _isEdit = false;
private bool isCanceled = true;
private Server selSrv = null;
public NewServerForm()
{
InitializeComponent();
}
void NewServerFormOKBtClick(object sender, EventArgs e)
{
isCanceled = false;
this.Close();
}
void NewServerFormCancelBtClick(object sender, EventArgs e)
{
isCanceled = true;
this.Close();
}
public bool isEdit
{
get
{
return _isEdit;
}
set
{
_isEdit = value;
}
}
public void showForm(ref Server srv)
{
selSrv = srv;
isEdit = true;
this.newServerFormNameTb.Text = selSrv.Name;
this.newServerFormHostTb.Text = selSrv.Host;
this.newServerFormUsernameTb.Text = selSrv.Username;
this.newServerFormPwdTb.Text = selSrv.Password;
this.ShowDialog();
}
public void showForm()
{
selSrv = new Server();
this.ShowDialog();
}
void NewServerFormFormClosing(object sender, FormClosingEventArgs e)
{
if(isCanceled || selSrv == null)
this.Dispose();
else if(isEdit && selSrv != null)
{
selSrv.Name = this.newServerFormNameTb.Text;
selSrv.Host = this.newServerFormHostTb.Text;
selSrv.Username = this.newServerFormUsernameTb.Text;
selSrv.Password = this.newServerFormPwdTb.Text;
selSrv.BgwConfigPath = this.newServerFormBgwlocTb.Text;
isCanceled = true;
MainProgram.serverSettings.setServer(selSrv, false);
this.Dispose();
}
else if(selSrv != null)
{
selSrv.Name = this.newServerFormNameTb.Text;
selSrv.Host = this.newServerFormHostTb.Text;
selSrv.Username = this.newServerFormUsernameTb.Text;
selSrv.Password = this.newServerFormPwdTb.Text;
MainProgram.serverSettings.setServer(selSrv, true);
isCanceled = true;
this.Dispose();
}
}
}
我正在尝试为不同的服务器构建一个简单的用户设置菜单，用户可以在其中添加、删除或更改现有的服务器设置。在带有列表框的表单中，用户单击一个按钮，该按钮将显示另一个带有一些文本框的表单供用户填写，然后单击“确定”以执行更改。
这些更改反映在 bindingList 中的 Items 中（新项目或对现有项目的更新）。添加新的服务器项或从 bindingList 中删除一项会立即反映在列表框中，但是对现有项进行更改会拒绝更新列表框。关闭包含列表框的表单并再次打开它将显示更改，但在列表框中完成更改后，我无法立即使其工作。
我尝试在列表框上调用 refresh()，在 BindingList 上调用 resetBindings() 和其他一些。
我在这里错过了什么吗？