我需要做同样的事情,我只查看包含数据的表。我很快发现,您必须小心从这里提取的内容,因为数据嵌套得很深。下面的查询在我的机器上运行不到一秒钟,数据库中大约有266个表(不包括视图)。 我希望这能回答你的问题。

 var list = this.Mapping.GetTables()    
     .Select(o => new { 
    TableName = o.TableName, 
    Type_ = o.RowType.Type, 
    IsEntity = o.RowType.IsEntity,
    RowCount = this.GetTable(o.RowType.Type).Cast<object>().Count(),
    })
    .Where (o => o.IsEntity && o.RowCount > 0)
    .ToList();

 list.Dump();

this.Mapping.GetTables().Select(o => new { 
    TableName = o.TableName, 
    RowCount = (
        (IEnumerable<object>)this.GetType().GetProperty(
            o.TableName.Substring(1, o.TableName.Length-2)
    ).GetValue(this, null))
    .Count()
}).Dump();

荣誉 this answer from Jason

试试这个:

var list = this.Mapping.GetTables()
    .Select(o => new { TableName = o.TableName, Type_ = o.Row.Type, RowCount = 0 }).ToList();

list.ForEach(x=>x.RowCount  = this.GetTable(x.Type_).Count);
list.Select(o=> new { TableName = o.TableName, RowCount = 0 });

var list = from o in this.Mapping.GetTables()
let rowCount = ExecuteQuery<int>("select count(*) from "+ o.TableName).FirstOrDefault()
 select new {
    TableName = o.TableName,
        RowCount = rowCount
  };

或者不使用映射:

this.GetType().GetProperties().Where(p => p.DeclaringType == typeof(TypedDataContext)).Select(t => new 
{ 
    TableName = t.Name,
    RowCount = ((IEnumerable<object>)(this.GetType().GetProperty(t.Name).GetValue(this, null))).Count()
}).Dump();

this.Mapping.GetTables().Select(o => new { TableName = o.TableName, RowCount = ? }).Dump()