public ConditionNodeTagData GetConditionNodeTag()
{
string szTabKey = ((DorpDownListItem)comboBox3.SelectedItem).Value;
string szShownString = label1.Text;
string szCode = TabFile.ConditionData.GetTabCell(szTabKey, "CompareSource");
DorpDownListItem operatorItem = (DorpDownListItem)comboBox1.SelectedItem;
DorpDownListItem targetItem = (DorpDownListItem)comboBox2.SelectedItem;
DorpDownListItem conditionItem = (DorpDownListItem)comboBox3.SelectedItem;
ConditionNodeTagData conditionNodeTag = new ConditionNodeTagData(szTabKey, szShownString, szCode, operatorItem, targetItem, conditionItem);
return(conditionNodeTag);
}
/// <summary>
/// 递归创建条件节点逻辑表达式。
/// </summary>
/// <param name="compareNode">数据树。</param>
/// <returns></returns>
private string CtrateCompareExpression(TreeNode compareNode)
{
string szCompareExpression = ""; // 组织好的表达式字符串
string szCompareOperator = "or";
if (compareNode.ForeColor == Color.Blue)
{
szCompareOperator = "and";
}
string szCompareEmptyResult = "false";
if (compareNode.Parent.Level < 2 || compareNode.Parent.ForeColor == Color.Blue)
{
szCompareEmptyResult = "true";
}
if (compareNode.Checked == false)
{
szCompareExpression = szCompareEmptyResult;
}
else
{
// 如果节点不是容器且没有子节点, 就计算表达式
if (compareNode.ForeColor != Color.Green && compareNode.ForeColor != Color.Blue && compareNode.Nodes.Count == 0)
{
// 实际条件节点内容
//szCompareExpression = compareNode.Text;
ConditionNodeTagData conditionNodeTag = (ConditionNodeTagData)compareNode.Tag;
// 如果是一个函数条件
if (conditionNodeTag.CompareOperator.Value == "()")
{
szCompareExpression = string.Format(conditionNodeTag.CompareCode, conditionNodeTag.CompareTarget.Value);
}
else
{
szCompareExpression = conditionNodeTag.CompareCode + " " + conditionNodeTag.CompareOperator.Value + " " + conditionNodeTag.CompareTarget.Value;
}
}
else if ((compareNode.ForeColor == Color.Green || compareNode.ForeColor == Color.Blue))
{
// 处理容器
if (compareNode.Nodes.Count > 0)
{
szCompareExpression += "(";
foreach (TreeNode subNode in compareNode.Nodes)
{
szCompareExpression = szCompareExpression + CtrateCompareExpression(subNode) + " " + szCompareOperator + " ";
}
// 这里清理掉最后一个 AND 或者 OR
szCompareExpression = Regex.Replace(szCompareExpression, " " + szCompareOperator + " $", "");
szCompareExpression += ")";
}
else
{
szCompareExpression = szCompareEmptyResult;
}
}
}
return(szCompareExpression);
}
private void ConditionSelector_Load(object sender, EventArgs e)
{
comboBox3.Items.Clear();
TreeNode SourceNode = (TreeNode)this.Tag;
// 下面通过判断 SourceNode 的 Tag 来判断是新建还是修改
bool bIsNewNode = SourceNode.Tag == null;
string szEventKey = "";
// 这里计算出当前选中的节点的事件 ID
if (SourceNode != null)
{
Form1 formSource = (Form1)SourceNode.TreeView.FindForm();
TreeNode selectedEventNode = formSource.GetSelectedEventNode();
if (selectedEventNode.Level == 1)
{
szEventKey = selectedEventNode.Parent.Name;
}
}
// 初始化条件下拉列表, 根据不同事件决定可用的判断条件
string[,] tTabContent = TabFile.ConditionData.GetTabContent();
for (int i = 1; i < TabFile.ConditionData.RecordLengthMax; i++)
{
int nMainKeyValue = TabFile.ConditionData.GetColIndexByFieldName(TabFile.ConditionData.MainKeyName);
if (tTabContent[i, nMainKeyValue] != "")
{
string szAllowableEventList = TabFile.ConditionData.GetTabCell(i, "AllowableEvent");
bool bAllow = true;
if (szAllowableEventList != "")
{
bAllow = false;
foreach (string szAllowableEventID in szAllowableEventList.Split(','))
{
if (szAllowableEventID == szEventKey)
{
bAllow = true;
break;
}
}
}
if (bAllow == true)
{
string szShowName = TabFile.ConditionData.GetTabCell(i, "Class") + " - " + TabFile.ConditionData.GetTabCell(i, "ShowName");
DorpDownListItem dorpDownListItem = new DorpDownListItem(szShowName, tTabContent[i, nMainKeyValue], 0);
dorpDownListItem.Index = comboBox3.Items.Add(dorpDownListItem);
}
}
}
comboBox3.SelectedIndex = 0;
comboBox1.SelectedIndex = -1;
comboBox2.SelectedIndex = -1;
if (bIsNewNode)
{
// 这个会触发事件初始化下面两个 COMBOBOX
comboBox1.SelectedIndex = 0;
comboBox2.SelectedIndex = 0;
}
else
{
// 通过已经记录的信息进行初始化
ConditionNodeTagData conditionNodeTag = (ConditionNodeTagData)SourceNode.Tag;
// 下面的循环用来保证即使 ComboBox 3 的内容变化了, 也能正确定位选中事件
foreach (Object comboItem in comboBox3.Items)
{
DorpDownListItem dorpDownListItem = (DorpDownListItem)comboItem;
if (dorpDownListItem.Value == conditionNodeTag.ConditionID)
{
// 这个会触发事件初始化下面两个 COMBOBOX
comboBox3.SelectedIndex = conditionNodeTag.CompareCondition.Index;
break;
}
}
label1.Text = conditionNodeTag.ShownString;
// 做简单检查避免表格改动导致宕掉
if (comboBox1.Items.Count > conditionNodeTag.CompareOperator.Index)
{
comboBox1.SelectedIndex = conditionNodeTag.CompareOperator.Index;
}
else
{
comboBox1.SelectedIndex = 0;
}
if (comboBox2.Items.Count > conditionNodeTag.CompareTarget.Index)
{
comboBox2.SelectedIndex = conditionNodeTag.CompareTarget.Index;
}
else
{
comboBox2.SelectedIndex = 0;
}
}
}
private void comboBox3_SelectedIndexChanged(object sender, EventArgs e)
{
if (comboBox3.SelectedItem == null)
{
return;
}
string szTabKey = ((DorpDownListItem)comboBox3.SelectedItem).Value;
// 写文本提示文本
label1.Text = comboBox3.Text;
// 生成比较运算符列表
string szCompareOperator = TabFile.ConditionData.GetTabCell(szTabKey, "CompareOperator");
//szCompareOperator = szCompareOperator.Replace("\"", "");
comboBox1.Items.Clear();
foreach (string szListItem in szCompareOperator.Split(','))
{
DorpDownListItem dorpDownListItem = new DorpDownListItem(szListItem.Split(';'), 0);
dorpDownListItem.Index = comboBox1.Items.Add(dorpDownListItem); // 记录下 Index
}
// 生成被比较下拉列表
string szCompareTarget = TabFile.ConditionData.GetTabCell(szTabKey, "CompareTarget");
//szCompareTarget = szCompareTarget.Replace("\"", "");
comboBox2.Items.Clear();
foreach (string szListItem in szCompareTarget.Split(','))
{
DorpDownListItem dorpDownListItem = new DorpDownListItem(szListItem.Split(';'), 0);
dorpDownListItem.Index = comboBox2.Items.Add(dorpDownListItem); // 记录下 Index
}
comboBox1.SelectedIndex = -1;
comboBox2.SelectedIndex = -1;
TreeNode SourceNode = (TreeNode)this.Tag;
// 下面通过判断 SourceNode 的 Tag 来判断是新建还是修改
ConditionNodeTagData conditionNodeTag = (ConditionNodeTagData)SourceNode.Tag;
if (conditionNodeTag != null && conditionNodeTag.ConditionID == szTabKey)
{
comboBox1.SelectedIndex = conditionNodeTag.CompareOperator.Index;
comboBox2.SelectedIndex = conditionNodeTag.CompareTarget.Index;
}
else
{
comboBox1.SelectedIndex = 0;
comboBox2.SelectedIndex = 0;
}
// 自动排版
int nStartLocMax = label1.Width;
if (nStartLocMax > 420) // 确保不会让排版超过窗体宽度
{
nStartLocMax = 420;
}
comboBox1.Location = new Point(label1.Location.X + nStartLocMax + 4, comboBox1.Location.Y);
comboBox2.Location = new Point(comboBox1.Location.X + comboBox1.Width + 4, comboBox2.Location.Y);
label2.Location = new Point(comboBox2.Location.X + comboBox2.Width + 4, label2.Location.Y);
}
public ConditionNodeTagData GetConditionNodeTag()
{
string szTabKey = ((DorpDownListItem)comboBox3.SelectedItem).Value;
string szShownString = label1.Text;
string szCode = TabFile.ConditionData.GetTabCell(szTabKey, "CompareSource");
DorpDownListItem operatorItem = (DorpDownListItem)comboBox1.SelectedItem;
DorpDownListItem targetItem = (DorpDownListItem)comboBox2.SelectedItem;
DorpDownListItem conditionItem = (DorpDownListItem)comboBox3.SelectedItem;
ConditionNodeTagData conditionNodeTag = new ConditionNodeTagData(szTabKey, szShownString, szCode, operatorItem, targetItem, conditionItem);
return conditionNodeTag;
}