/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(Bookhole_blog.Model.img model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update img set ");
strSql.Append("Img_address=@Img_address,");
strSql.Append("Img_text=@Img_text,");
strSql.Append("Img_is=@Img_is");
strSql.Append(" where Img_id=@Img_id ");
MySqlParameter[] parameters =
{
new MySqlParameter("@Img_address", MySqlDbType.VarChar, 255),
new MySqlParameter("@Img_text", MySqlDbType.VarChar, 255),
new MySqlParameter("@Img_is", MySqlDbType.Int32, 11),
new MySqlParameter("@Img_id", MySqlDbType.Int32, 11)
};
parameters[0].Value = model.Img_address;
parameters[1].Value = model.Img_text;
parameters[2].Value = model.Img_is;
parameters[3].Value = model.Img_id;
int rows = DbHelperMySQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 增加一条数据
/// </summary>
public bool Add(Bookhole_blog.Model.img model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into img(");
strSql.Append("Img_id,Img_address,Img_text,Img_is)");
strSql.Append(" values (");
strSql.Append("@Img_id,@Img_address,@Img_text,@Img_is)");
MySqlParameter[] parameters =
{
new MySqlParameter("@Img_id", MySqlDbType.Int32, 11),
new MySqlParameter("@Img_address", MySqlDbType.VarChar, 255),
new MySqlParameter("@Img_text", MySqlDbType.VarChar, 255),
new MySqlParameter("@Img_is", MySqlDbType.Int32, 11)
};
parameters[0].Value = model.Img_id;
parameters[1].Value = model.Img_address;
parameters[2].Value = model.Img_text;
parameters[3].Value = model.Img_is;
int rows = DbHelperMySQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public Bookhole_blog.Model.img DataRowToModel(DataRow row)
{
Bookhole_blog.Model.img model = new Bookhole_blog.Model.img();
if (row != null)
{
if (row["Img_id"] != null && row["Img_id"].ToString() != "")
{
model.Img_id = int.Parse(row["Img_id"].ToString());
}
if (row["Img_address"] != null)
{
model.Img_address = row["Img_address"].ToString();
}
if (row["Img_text"] != null)
{
model.Img_text = row["Img_text"].ToString();
}
if (row["Img_is"] != null && row["Img_is"].ToString() != "")
{
model.Img_is = int.Parse(row["Img_is"].ToString());
}
}
return(model);
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public Bookhole_blog.Model.img GetModel(int Img_id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select Img_id,Img_address,Img_text,Img_is from img ");
strSql.Append(" where Img_id=@Img_id ");
MySqlParameter[] parameters =
{
new MySqlParameter("@Img_id", MySqlDbType.Int32, 11)
};
parameters[0].Value = Img_id;
Bookhole_blog.Model.img model = new Bookhole_blog.Model.img();
DataSet ds = DbHelperMySQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}