public static void SetData(this DataTable dt, SCDataTable scDataTable)
{
dt.Rows.Clear();
dt.Columns.Clear();
dt.TableName = scDataTable.TableName;
foreach (SCField field in scDataTable.MetaData.Fields)
{
DataColumn col = new DataColumn();
col.Caption = field.Caption;
col.DataType = Type.GetType(field.DataType);
col.Expression = field.Expression;
col.ColumnName = field.FiledName;
col.Unique = field.IsKey;
col.ReadOnly = field.IsReadOnly;
col.AllowDBNull = !field.IsRequire;
col.MaxLength = field.MaxLength;
dt.Columns.Add(col);
}
//装数据
foreach (List <object> values in scDataTable.Datas)
{
dt.Rows.Add(values.ToArray());
}
}
public object Clone()
{
SCDataTable dsd = new SCDataTable();
dsd.MetaData = (SCMetaData)this.m_md.Clone();
return(dsd);
}
public static SCDataTable GetData(this DataTable dt)
{
SCDataTable dsd = new SCDataTable();
if (string.IsNullOrWhiteSpace(dt.TableName))
{
throw new InvalidCastException("无效的表明");
}
dsd.TableName = dt.TableName;
SCMetaData md = new SCMetaData();
//提取元数据信息
foreach (DataColumn col in dt.Columns)
{
SCField f = new SCField();
f.Caption = col.Caption;
f.DataType = col.DataType.ToString();
f.Expression = col.Expression;
f.FiledName = col.ColumnName;
f.IsKey = col.Unique;
f.IsReadOnly = col.ReadOnly;
f.IsRequire = !col.AllowDBNull;
f.MaxLength = col.MaxLength;
md.AddField(f);
}
dsd.MetaData = md;
//装数据
List <List <object> > datas = new List <List <object> >();
for (int i = 0; i < dt.Rows.Count; i++)
{
List <object> rowData = new List <object>();
for (int j = 0; j < dt.Columns.Count; j++)
{
rowData.Add(dt.Rows[i][j]);
}
datas.Add(rowData);
}
dsd.Datas = datas;
return(dsd);
}
