/// <summary>
/// 增加一条数据
/// </summary>
public int Add(dbamet.Model.Intro model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into Intro(");
strSql.Append("type,title,introcontent)");
strSql.Append(" values (");
strSql.Append("@type,@title,@introcontent)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@type", SqlDbType.VarChar, 50),
new SqlParameter("@title", SqlDbType.NChar, 10),
new SqlParameter("@introcontent", SqlDbType.NText)
};
parameters[0].Value = model.type;
parameters[1].Value = model.title;
parameters[2].Value = model.introcontent;
object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
if (obj == null)
{
return(0);
}
else
{
return(Convert.ToInt32(obj));
}
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(dbamet.Model.Intro model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update Intro set ");
strSql.Append("type=@type,");
strSql.Append("title=@title,");
strSql.Append("introcontent=@introcontent");
strSql.Append(" where id=@id");
SqlParameter[] parameters =
{
new SqlParameter("@type", SqlDbType.VarChar, 50),
new SqlParameter("@title", SqlDbType.NChar, 10),
new SqlParameter("@introcontent", SqlDbType.NText),
new SqlParameter("@id", SqlDbType.Int, 4)
};
parameters[0].Value = model.type;
parameters[1].Value = model.title;
parameters[2].Value = model.introcontent;
parameters[3].Value = model.id;
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public dbamet.Model.Intro GetModel(int id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 id,type,title,introcontent from Intro ");
strSql.Append(" where id=@id");
SqlParameter[] parameters =
{
new SqlParameter("@id", SqlDbType.Int, 4)
};
parameters[0].Value = id;
dbamet.Model.Intro model = new dbamet.Model.Intro();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
if (ds.Tables[0].Rows[0]["id"] != null && ds.Tables[0].Rows[0]["id"].ToString() != "")
{
model.id = int.Parse(ds.Tables[0].Rows[0]["id"].ToString());
}
if (ds.Tables[0].Rows[0]["type"] != null && ds.Tables[0].Rows[0]["type"].ToString() != "")
{
model.type = ds.Tables[0].Rows[0]["type"].ToString();
}
if (ds.Tables[0].Rows[0]["title"] != null && ds.Tables[0].Rows[0]["title"].ToString() != "")
{
model.title = ds.Tables[0].Rows[0]["title"].ToString();
}
if (ds.Tables[0].Rows[0]["introcontent"] != null && ds.Tables[0].Rows[0]["introcontent"].ToString() != "")
{
model.introcontent = ds.Tables[0].Rows[0]["introcontent"].ToString();
}
return(model);
}
else
{
return(null);
}
}
