/// <summary>
/// 增加一条数据
/// </summary>
public int Add(BookShop.Model.Category model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into Categories(");
strSql.Append("Name)");
strSql.Append(" values (");
strSql.Append("@Name)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@Name", SqlDbType.NVarChar, 200)
};
parameters[0].Value = model.Name;
object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
if (obj == null)
{
return(1);
}
else
{
return(Convert.ToInt32(obj));
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public BookShop.Model.Category GetModel(int Id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 Id,Name from Categories ");
strSql.Append(" where Id=@Id ");
SqlParameter[] parameters =
{
new SqlParameter("@Id", SqlDbType.Int, 4)
};
parameters[0].Value = Id;
BookShop.Model.Category model = new BookShop.Model.Category();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
if (ds.Tables[0].Rows[0]["Id"].ToString() != "")
{
model.Id = int.Parse(ds.Tables[0].Rows[0]["Id"].ToString());
}
model.Name = ds.Tables[0].Rows[0]["Name"].ToString();
return(model);
}
else
{
return(null);
}
}
protected void btnAdd_Click(object sender, EventArgs e)
{
BLL.CategoryManager category = new BookShop.BLL.CategoryManager();
Model.Category cat = new BookShop.Model.Category();
cat.Name = txtCateGory.Text;
category.Add(cat);
Response.Write("添加成功！");
txtCateGory.Text = "";
gvMain.DataBind();
}
/// <summary>
/// 更新一条数据
/// </summary>
public void Update(BookShop.Model.Category model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update Categories set ");
strSql.Append("Name=@Name");
strSql.Append(" where Id=@Id ");
SqlParameter[] parameters =
{
new SqlParameter("@Id", SqlDbType.Int, 4),
new SqlParameter("@Name", SqlDbType.NVarChar, 200)
};
parameters[0].Value = model.Id;
parameters[1].Value = model.Name;
DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
}
