// 显示值列表
public void ShowValueList(
int nCaretPosition,
int nLineChars,
string strCurLine)
{
this.Update();
if (this.nCurLine == -1)
return;
if (this.m_nInShowValueList > 0)
{
// TODO: 是否Post一个消息出去，稍后再作?
return;
}
this.m_nInShowValueList++;
try
{
string strError = "";
TemplateLine line = (TemplateLine)this.templateRoot.Lines[this.nCurLine];
if (line == null)
{
strError = "未找到序号为'" + Convert.ToString(this.nCurLine) + "'行";
return;
}
int nValueChars = 0; // 值的字符数
if (line.ValueListNodes == null
|| line.ValueListNodes.Count == 0)
{
this.listView_values.Items.Clear();
return;
}
Cursor oldCursor = this.Cursor;
this.Cursor = Cursors.WaitCursor;
if (this.CurValueListNodes != null
&& this.CurValueListNodes == line.ValueListNodes)
{
if (this.listView_values.Items.Count > 0)
{
nValueChars = this.listView_values.Items[0].Text.Length;
goto SELECT; // 优化
}
}
this.listView_values.Items.Clear();
// 解决ref
while (true)
{
bool bFoundNew = false;
for (int i = 0; i < line.ValueListNodes.Count; i++)
{
XmlNode valuelist_node = line.ValueListNodes[i];
string strRef = DomUtil.GetAttr(valuelist_node, "ref");
if (string.IsNullOrEmpty(strRef) == true)
continue;
{
if (this.GetConfigDom == null)
return;
GetConfigDomEventArgs ar = new GetConfigDomEventArgs();
ar.Path = strRef;
ar.XmlDocument = null;
this.GetConfigDom(this, ar);
if (string.IsNullOrEmpty(ar.ErrorInfo) == false)
{
strError = "获取 '" + line.m_strName + "' 对应的ValueList出错，原因:" + ar.ErrorInfo;
goto END1;
}
if (ar.XmlDocument == null)
return; // ??
string strSource = "";
string strValueListName = "";
int nIndex = strRef.IndexOf('#');
if (nIndex != -1)
{
strSource = strRef.Substring(0, nIndex);
strValueListName = strRef.Substring(nIndex + 1);
}
else
{
strValueListName = strRef;
}
XmlNode valueListNode = ar.XmlDocument.SelectSingleNode("//ValueList[@name='" + strValueListName + "']");
if (valueListNode == null)
{
strError = "未找到路径为'" + strRef + "'的节点。";
goto END1;
}
// 替换
line.ValueListNodes[i] = valueListNode;
bFoundNew = true;
}
}
if (bFoundNew == false)
break;
}
this.listView_values.Items.Clear(); // 2006/5/30 add
foreach (XmlNode valuelist_node in line.ValueListNodes)
{
XmlNodeList itemList = valuelist_node.SelectNodes("Item");
foreach (XmlNode itemNode in itemList)
{
string strItemLable = "";
// 从一个元素的下级的多个<strElementName>元素中, 提取语言符合的XmlNode的InnerText
// parameters:
// bReturnFirstNode 如果找不到相关语言的，是否返回第一个<strElementName>
strItemLable = DomUtil.GetXmlLangedNodeText(
this.Lang,
itemNode,
"Label",
true);
if (string.IsNullOrEmpty(strItemLable) == true)
strItemLable = "<尚未定义>";
else
strItemLable = StringUtil.Trim(strItemLable);
#if NO
XmlNamespaceManager nsmgr = new XmlNamespaceManager(new NameTable());
nsmgr.AddNamespace("xml", Ns.xml);
XmlNode itemLabelNode = itemNode.SelectSingleNode("Label[@xml:lang='" + this.Lang + "']", nsmgr);
if (itemLabelNode == null
|| string.IsNullOrEmpty(itemLabelNode.InnerText.Trim()) == true)
{
// 如果找不到，则找到第一个有值的
XmlNodeList nodes = itemNode.SelectNodes("Label", nsmgr);
foreach (XmlNode temp_node in nodes)
{
if (string.IsNullOrEmpty(temp_node.InnerText.Trim()) == false)
{
itemLabelNode = temp_node;
break;
}
}
}
if (itemLabelNode == null)
strItemLable = "<尚未定义>";
else
strItemLable = StringUtil.Trim(itemLabelNode.InnerText);
#endif
XmlNode itemValueNode = itemNode.SelectSingleNode("Value");
string strItemValue = StringUtil.Trim(itemValueNode.InnerText);
if (String.IsNullOrEmpty(strItemValue) == false)
{
nValueChars = strItemValue.Length;
}
// 加入listview
ListViewItem item = new ListViewItem(strItemValue);
item.SubItems.Add(strItemLable);
this.listView_values.Items.Add(item);
}
}
this.CurValueListNodes = line.ValueListNodes;
SELECT:
// 加亮当前事项
if (nValueChars != 0)
{
// 算出当前插入符在第几个单元的值上
int nIndex = nCaretPosition / nValueChars;
if ((nIndex * nValueChars) + nValueChars <= strCurLine.Length)
{
string strCurUnit = strCurLine.Substring(nIndex * nValueChars, nValueChars);
// 在listview中找到这个值, 并选择它。
for (int i = 0; i < this.listView_values.Items.Count; i++)
{
if (this.listView_values.Items[i].Text.Replace("_", " ") == strCurUnit)
{
this.CurActiveValueUnit = strCurUnit;
this.listView_values.Items[i].Selected = true;
// 滚入视线内
this.listView_values.EnsureVisible(i);
}
else
{
if (this.listView_values.Items[i].Selected != false)
this.listView_values.Items[i].Selected = false;
}
}
}
}
END1:
/////////////////////////////////////
// 触发EndGetValueList事件
///////////////////////////////////////
EndGetValueListEventArgs argsEnd = new EndGetValueListEventArgs();
if (strError != "")
argsEnd.Ref = strError;
else
argsEnd.Ref = "";
this.fireEndGetValueList(this, argsEnd);
this.Cursor = oldCursor;
}
finally
{
this.m_nInShowValueList--;
}
}
public void fireEndGetValueList(object sender,
EndGetValueListEventArgs args)
{
if (EndGetValueList != null)
{
this.EndGetValueList(sender,args);
}
}
