/// <summary>
/// 构建树
/// </summary>
/// <param name="parentNode">父节点</param>
/// <param name="lstDepInfo">部门信息列表</param>
void BuildTree(TreeNode parentNode, List <MaterialTypeData> lstDepotInfo)
{
bool isLeaf = false;
MaterialTypeData parentDepInfo = parentNode.Tag as MaterialTypeData;
int nodeGrade = Convert.ToInt32(parentDepInfo.MaterialTypeGrade);
for (int i = 0; i < lstDepotInfo.Count; i++)
{
if (nodeGrade + 1 == Convert.ToInt32(lstDepotInfo[i].MaterialTypeGrade))
{
TreeNode node = new TreeNode();
UpdateTreeNode(node, lstDepotInfo[i]);
isLeaf = (bool)lstDepotInfo[i].IsEnd;
parentNode.Nodes.Add(node);
lstDepotInfo.RemoveAt(i);
i--;
if (!isLeaf)
{
BuildTree(node, lstDepotInfo);
}
}
else
{
break;
}
}
}
/// <summary>
/// 从材料类别列表中更新指定材料类别
/// </summary>
/// <param name="depCode">要更新材料类别的编码</param>
/// <param name="info">更新后的信息</param>
private void UpdateItemFromDepotList(string depotCode, MaterialTypeData info)
{
int index = -1;
m_findDepotCode = depotCode;
index = m_listDepotInfo.FindIndex(this.FindDepotListData);
m_listDepotInfo[index] = info;
}
/// <summary>
/// 从界面获取材料类别信息
/// </summary>
/// <returns>获取到的材料类别信息</returns>
private MaterialTypeData GetDepotInfoFromFace()
{
MaterialTypeData info = new MaterialTypeData();
info.MaterialTypeCode = txtCode.Text;
info.MaterialTypeName = txtName.Text;
info.MaterialTypeGrade = info.MaterialTypeCode.Length / 2 - 1;
return(info);
}
/// <summary>
/// 查找符合条件的部门信息列表数据
/// </summary>
/// <param name="info">检索的信息</param>
/// <returns>当前检索项目符合条件返回true, 其它为false</returns>
private bool FindDepotListData(MaterialTypeData info)
{
if (info.MaterialTypeCode.CompareTo(m_findDepotCode) == 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 获取指定材料类别信息在树中的父节点
/// </summary>
/// <param name="info">要获取父节点的材料类别信息</param>
/// <returns>成功返回父节点, 失败返回null</returns>
private TreeNode GetParentNode(MaterialTypeData info)
{
if (info.MaterialTypeCode.Length == m_CodeChars[0])
{
return(null);
}
string upperDepotCode = info.MaterialTypeCode.Substring(0, info.MaterialTypeCode.Length - 2);
TreeNode parentNode = treeView.Nodes.Find(upperDepotCode, true)[0];
return(parentNode);
}
/// <summary>
/// 树节点选中后触发该事件
/// </summary>
/// <param name="sender">触发此事件的对象</param>
/// <param name="e">事件参数</param>
private void treeView_AfterSelect(object sender, TreeViewEventArgs e)
{
TreeNode selNode = treeView.SelectedNode;
// 是根节点
if (selNode == treeView.Nodes[0])
{
InitSetting(false);
return;
}
InitSetting(true);
MaterialTypeData info = selNode.Tag as MaterialTypeData;
txtCode.Text = info.MaterialTypeCode;
txtName.Text = info.MaterialTypeName;
}
/// <summary>
/// 更新材料类别信息
/// </summary>
/// <param name="err">错误信息, 没有错误该值为null</param>
/// <returns>成功返回true</returns>
bool UpdataDepot(out string err)
{
MaterialTypeData info = GetDepotInfoFromFace();
info.MaterialTypeCode = CurrentDepotInfo.MaterialTypeCode;
info.MaterialTypeGrade = CurrentDepotInfo.MaterialTypeGrade;
info.IsEnd = CurrentDepotInfo.IsEnd;
if (m_depotServer.UpdataMaterialType(info, out err))
{
UpdateTreeNode(CurrentTreeNode, info);
// 从信息列表中更新元素
UpdateItemFromDepotList(info.MaterialTypeCode, info);
return(true);
}
return(false);
}
/// <summary>
/// 将材料类别信息添加到一个新的树节点
/// </summary>
/// <param name="info">材料类别信息类</param>
private void AddTreeNode(MaterialTypeData info)
{
TreeNode parentNode = null;
if (info.MaterialTypeGrade == 0)
{
parentNode = treeView.Nodes[0];
}
else
{
parentNode = GetParentNode(info);
}
if (parentNode != null)
{
TreeNode childNode = new TreeNode();
UpdateTreeNode(childNode, info);
parentNode.Nodes.Add(childNode);
}
}
/// <summary>
/// 更新树节点信息
/// </summary>
/// <param name="node">要更新的树节点</param>
/// <param name="info">更新后的信息</param>
private void UpdateTreeNode(TreeNode node, MaterialTypeData info)
{
node.Name = info.MaterialTypeCode;
node.Text = string.Format("({0}) {1}", node.Name, info.MaterialTypeName);
node.Tag = info;
}
/// <summary>
/// 删除
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnDelete_Click(object sender, EventArgs e)
{
if (CurrentDepotInfo.MaterialTypeGrade == 0)
{
MessageDialog.ShowPromptMessage("1级材料类别目录不允许删除!");
return;
}
if (CurrentTreeNode == null || CurrentDepotInfo == null)
{
MessageDialog.ShowPromptMessage("请选中要删除的材料类别后再操作");
return;
}
if (CurrentTreeNode.Nodes.Count > 0)
{
MessageDialog.ShowPromptMessage(string.Format("材料类别[{0}]下还存在子材料类别, 只能删除不存在子材料类别的节点",
CurrentDepotInfo.MaterialTypeCode));
return;
}
if (DialogResult.No == MessageDialog.ShowEnquiryMessage(string.Format("您是否确定要删除部门[({0}){1}]",
CurrentDepotInfo.MaterialTypeCode, CurrentDepotInfo.MaterialTypeName)))
{
return;
}
MaterialTypeData parentDepotInfo = CurrentTreeNode.Parent.Tag as MaterialTypeData;
if (CurrentTreeNode.Parent.Nodes.Count == 1 && CurrentTreeNode.Parent.Name != "材料类别")
{
parentDepotInfo = parentDepotInfo.Clone() as MaterialTypeData;
// 修改父节点的IsEnd属性
parentDepotInfo.IsEnd = true;
if (!m_depotServer.DeleteMaterialType(CurrentDepotInfo.MaterialTypeCode, parentDepotInfo, out m_err))
{
MessageDialog.ShowErrorMessage(m_err);
return;
}
CurrentTreeNode.Parent.Tag = parentDepotInfo;
}
else
{
if (!m_depotServer.DeleteMaterialType(CurrentDepotInfo.MaterialTypeCode, out m_err))
{
MessageDialog.ShowErrorMessage(m_err);
return;
}
}
// 从信息列表中移除元素
m_findDepotCode = CurrentDepotInfo.MaterialTypeCode;
int index = m_listDepotInfo.FindIndex(this.FindDepotListData);
m_listDepotInfo.RemoveAt(index);
CurrentTreeNode.Parent.Nodes.Remove(CurrentTreeNode);
}
/// <summary>
/// 添加
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnAdd_Click(object sender, EventArgs e)
{
if (!CheckInputItem(out m_err))
{
MessageDialog.ShowErrorMessage(m_err);
return;
}
if (!CheckDepotCode(txtCode.Text, out m_err))
{
MessageDialog.ShowErrorMessage(m_err);
return;
}
if (IsExistDepotCode(txtCode.Text))
{
txtCode.Focus();
MessageDialog.ShowErrorMessage("部门编码已经存在, 不允许添加相同的编码");
return;
}
if (!CheckDepotName(txtName.Text, out m_err))
{
txtName.Focus();
MessageDialog.ShowErrorMessage(m_err);
return;
}
// 从界面上获取材料类别信息
MaterialTypeData info = GetDepotInfoFromFace();
// 添加的节点必然是叶子节点
info.IsEnd = true;
TreeNode parentNode = GetParentNode(info);
if (parentNode != null)
{
MaterialTypeData parentDepotInfo = parentNode.Tag as MaterialTypeData;
parentDepotInfo = parentDepotInfo.Clone() as MaterialTypeData;
// 修改父节点的IsEnd属性
parentDepotInfo.IsEnd = false;
if (!m_depotServer.AddMaterialType(info, parentDepotInfo, out m_err))
{
MessageDialog.ShowErrorMessage(m_err);
return;
}
// 更新树节点的绑定数据
parentNode.Tag = parentDepotInfo;
// 从部门列表中更新父节点信息
UpdateItemFromDepotList(parentDepotInfo.MaterialTypeCode, parentDepotInfo);
}
else
{
if (!m_depotServer.AddMaterialType(info, out m_err))
{
MessageDialog.ShowErrorMessage(m_err);
return;
}
}
AddTreeNode(info);
m_listDepotInfo.Add(info);
InitSetting(false);
this.treeView.ExpandAll();
}