/// <summary>
/// 加载文件，获得所有需要执行的sql
/// </summary>
private void Init()
{
string uri = WebClientInfo.BaseAddress + "/" + FileName;
//根据uri，去后台获取数据
WebClient client = new WebClient();
client.DownloadStringCompleted += (o, a) =>
{
IsBusy = false;
if (a.Error != null)
{
MessageBox.Show("加载报表文件失败！");
}
else
{
JsonObject item = JsonValue.Parse(a.Result) as JsonObject;
//清除原来的数据
this.Clear();
//取出所有列定义
JsonArray columns = item["columns"] as JsonArray;
foreach (JsonObject obj in columns)
{
int width = obj["width"];
Column column = new Column() { Width = width };
this.columns.Add(column);
//保存列初始化数据
this.columns_init.Add(column);
}
//主体sql
JsonArray sqls = item["sqls"] as JsonArray;
for (int i = 0; i < sqls.Count; i++)
{
JsonObject obj = sqls[i] as JsonObject;
string name = obj["name"];
BodyDatas bd = new BodyDatas(name, obj["sql"], new ObjectList());
TableBodyItems.Add(bd);
}
//表头sql
string headsql="";
if (item.ContainsKey("headsql")) { headsql = item["headsql"]; }
if (headsql != "")
{
HasHead = true;
TableHeadItems.Name = "head";
TableHeadItems.Sql = headsql;
TableHeadItems.Value = new ObjectList();
}
//左侧sql
string leftsql = "";
if (item.ContainsKey("leftsql")) { leftsql = item["leftsql"]; }
if (leftsql != "")
{
HasLeft = true;
TableLeftItems.Name = "left";
TableLeftItems.Sql = leftsql;
TableLeftItems.Value = new ObjectList();
}
//加载所有单元格模板
InitTemplate(item);
}
};
IsBusy = true;
client.DownloadStringAsync(new Uri(uri));
}
/// <summary>
/// 根据表头，重新绘制，如果有表达式则执行表达式
/// </summary>
private void UpdateHead()
{
if (TableHeadItems.Value.Count == 0 && TableBodyItems.Count == 0) return;
//绘制有表头变化部分的表头
if (HasHead)
{
//更新表头前,保存初始化列数据
List<Column> temp_columns = this.columns_init;
this.columns.Clear();
//获得表头变化模板包含几列
Dictionary<string, int> dic = getColumnNumber(headChangeCellTemplate);
//根据表头sql数据进行复制
foreach (Cell cell in headCellTemplate)
{
if (cell.Column < dic["min"])
{
Cell copy = cell.copyCell();
Program prog = new Program(copy.Content, this, false);
Delegate d = prog.Parse(prog.Exp);
copy.Delegate = d;
object value = copy.Delegate.DynamicInvoke();
if (value == null) { value = copy.Content.Replace("$", ""); }
copy.Content = value+"";
copy.Row = cell.Row; this.cells.Add(copy);
Column column = new Column() { Width = temp_columns[cell.Column].Width };
this.columns.Add(column);
}
//在变化部分的右侧单元格，
else if (cell.Column > dic["max"])
{
Cell copy = cell.copyCell();
Program prog = new Program(copy.Content, this, false);
Delegate d = prog.Parse(prog.Exp);
copy.Delegate = d;
object value = copy.Delegate.DynamicInvoke();
if (value == null) { value = copy.Content.Replace("$", ""); }
copy.Content = value + "";
copy.Row = cell.Row;
//根据表头变化部分模板复制单元格，横向复制
copy.Column = cell.Column + (TableHeadItems.Value.Count - 1) * dic["count"];
this.cells.Add(copy);
Column column = new Column() { Width = temp_columns[cell.Column].Width };
this.columns.Add(column);
}
else
{
for (int i = 0; i < TableHeadItems.Value.Count; i++)
{
Cell copy = cell.copyCell();
Program prog = new Program("data." + copy.Content, this, false);
Delegate d = prog.Parse(prog.Exp);
copy.Delegate = d;
object value = copy.Delegate.DynamicInvoke(new object[] { TableHeadItems.Value[i] });
if (value == null) { value = copy.Content.Replace("$", ""); }
copy.Content = value + "";
copy.Row = cell.Row;
//根据表头变化部分模板复制单元格，横向复制
copy.Column = cell.Column + i * dic["count"];
this.cells.Add(copy);
//复制列
Column column = new Column() { Width = temp_columns[cell.Column].Width };
this.columns.Add(column);
}
}
}
}
//绘制普通表头，执行表达式
else
{
foreach (Cell cell in headCellTemplate)
{
Cell copy = cell.copyCell();
Program prog = new Program(copy.Content, this, false);
Delegate d = prog.Parse(prog.Exp);
copy.Delegate = d;
object value = copy.Delegate.DynamicInvoke();
copy.Content = value + "";
copy.Row = cell.Row;
this.cells.Add(copy);
}
}
//复制表头行
this.rows.AddRange(headRowTemplate);
}
/// <summary>
/// 把json转成报表对象
/// </summary>
/// <param name="json"></param>
private void jsonToTable(string json)
{
this.cells.Clear();
this.columns.Clear();
this.rows.Clear();
JsonObject item = JsonValue.Parse(json) as JsonObject;
GeneralObject go = new GeneralObject();
go.FromJson(item);
//列
ObjectList ol = go.GetPropertyValue("Column") as ObjectList;
foreach (GeneralObject one in ol)
{
Column c = new Column();
c.Width = Int32.Parse(one.GetPropertyValue("Width") + "");
this.columns.Add(c);
}
//行
ol = go.GetPropertyValue("Row") as ObjectList;
foreach (GeneralObject one in ol)
{
Row r = new Row();
r.Height = Int32.Parse(one.GetPropertyValue("Height")+"");
this.rows.Add(r);
}
//单元格
ol = go.GetPropertyValue("Cell") as ObjectList;
foreach (GeneralObject one in ol)
{
Cell c = new Cell();
c.Content = one.GetPropertyValue("Content") + "";
c.Column = Int32.Parse(one.GetPropertyValue("Column") + "");
c.ColumnSpan = Int32.Parse(one.GetPropertyValue("ColumnSpan") + "");
c.Row = Int32.Parse(one.GetPropertyValue("Row") + "");
c.RowSpan = Int32.Parse(one.GetPropertyValue("RowSpan") + "");
c.Location = one.GetPropertyValue("Location") + "";
this.cells.Add(c);
}
//绘制报表
Layout();
}
