/// <summary>
/// 注销数据库
/// </summary>
public void RemoveServer()
{
if (tvDatabase.SelectedNode == null)
{
return;
}
TreeNode rootNode = GetRoot(tvDatabase.SelectedNode);
if (rootNode == null)
{
return;
}
Model.TreeNodeTag tag = (Model.TreeNodeTag)rootNode.Tag;
if (tag.Type != TreeNodeType.Server)
{
return;
}
Model.Servers server = (Model.Servers)tag.Tag;
new Common.Config_Servers().Delete(server.ID);
rootNode.Remove();
}
/// <summary>
/// 加载下级节点
/// </summary>
private void AddNodes(bool isRefresh = false)
{
TreeNode selNode = tvDatabase.SelectedNode;
if (selNode == null)
{
return;
}
if (selNode.Nodes.Count > 0 && !isRefresh)
{
return;
}
selNode.Nodes.Clear();
TreeNode rootNode = GetRoot(selNode);
if (rootNode == null)
{
return;
}
Model.TreeNodeTag rootNodeTag = (Model.TreeNodeTag)rootNode.Tag;
if (!(rootNodeTag.Tag is Model.Servers))
{
return;
}
Model.Servers server = (Model.Servers)rootNodeTag.Tag;
Model.TreeNodeTag nodeTag = (Model.TreeNodeTag)selNode.Tag;
Business.Database Database = new Business.Database(server.Type);
string msg;
if (!Database.TestDatabaseConnnection(server.ID, out msg))
{
MessageBox.Show(msg, "连接失败", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
switch (nodeTag.Type)
{
case TreeNodeType.Server: //服务器加载数据库
var dbs = Database.GetDatabases(server.ID);
foreach (var db in dbs)
{
TreeNode dbNode = new TreeNode();
dbNode.Name = db;
dbNode.Text = db;
dbNode.ImageIndex = 1;
dbNode.SelectedImageIndex = 1;
dbNode.Tag = new Model.TreeNodeTag()
{
Type = TreeNodeType.DataBase, Tag = db
};
selNode.Nodes.Add(dbNode);
}
break;
case TreeNodeType.DataBase: //数据库加载表视图节点
//添加表节点
TreeNode tblNode = new TreeNode();
tblNode.Name = "表";
tblNode.Text = "表";
tblNode.Tag = new Model.TreeNodeTag()
{
Type = TreeNodeType.TableNode, Tag = nodeTag.Tag.ToString()
};
tblNode.ImageIndex = 4;
tblNode.SelectedImageIndex = 4;
selNode.Nodes.Add(tblNode);
//添加视图节点
TreeNode viewNode = new TreeNode();
viewNode.Name = "视图";
viewNode.Text = "视图";
viewNode.Tag = new Model.TreeNodeTag()
{
Type = TreeNodeType.ViewNode, Tag = nodeTag.Tag.ToString()
};
viewNode.ImageIndex = 4;
viewNode.SelectedImageIndex = 4;
selNode.Nodes.Add(viewNode);
break;
case TreeNodeType.TableNode: //表节点加载表
var tables = Database.GetTables(server.ID, nodeTag.Tag.ToString());
foreach (var table in tables)
{
TreeNode tblNode1 = new TreeNode();
tblNode1.Name = table.Name;
tblNode1.Text = table.Name;
tblNode1.ImageIndex = 2;
tblNode1.SelectedImageIndex = 2;
tblNode1.Tag = new Model.TreeNodeTag()
{
Type = TreeNodeType.Table, Tag = table.Name
};
selNode.Nodes.Add(tblNode1);
}
break;
case TreeNodeType.ViewNode: //视图节点加载视图
var views = Database.GetViews(server.ID, nodeTag.Tag.ToString());
foreach (var view in views)
{
TreeNode viewNode1 = new TreeNode();
viewNode1.Name = view.Name;
viewNode1.Text = view.Name;
viewNode1.ImageIndex = 2;
viewNode1.SelectedImageIndex = 2;
viewNode1.Tag = new Model.TreeNodeTag()
{
Type = TreeNodeType.View, Tag = view.Name
};
selNode.Nodes.Add(viewNode1);
}
break;
case TreeNodeType.View:
case TreeNodeType.Table: //表加载字段
var fields = Database.GetFields(server.ID, ((Model.TreeNodeTag)selNode.Parent.Tag).Tag.ToString(), ((Model.TreeNodeTag)selNode.Tag).Tag.ToString());
foreach (var field in fields)
{
TreeNode fldNode = new TreeNode();
fldNode.Name = field.Name;
fldNode.Text = string.Format("{0}({1}{2},{3})", field.Name, field.Type, field.Length != -1 ? "(" + field.Length.ToString() + ")" : "", field.IsNull ? "null" : "not null");
fldNode.ImageIndex = field.IsPrimaryKey ? 5 : 3;
fldNode.SelectedImageIndex = field.IsPrimaryKey ? 5 : 3;
fldNode.Tag = new Model.TreeNodeTag()
{
Type = TreeNodeType.Field, Tag = field
};
selNode.Nodes.Add(fldNode);
}
break;
}
selNode.Expand();
}