页面Page_Load事件与Repeater ItemCommand [英] The Page Page_Load Event Vs The Repeater ItemCommand
本文介绍了页面Page_Load事件与Repeater ItemCommand的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在Page_Load中运行一些代码,然后将这段代码的结果存储在一些局部变量中.
I'm running some code in Page_Load then I store the results from this code in some local variables.
现在我使用此局部变量将其分配给我的转发器项目模板内的控件
Now I use this local variables to assign them to the controls inside my repeater item template
问题是>>页面未显示项目模板,但没有数据绑定..我认为转发器无法在Page_Load中加载分配给它的数据,并且它已初始化-与生命周期相关问题-
The Problem Is >> the page doesn't displays the item template but there's no data bound to it..I think the repeater can't load the data assigned to it in the Page_Load and it get's initialized -life cycle related issues-
任何想法到底是什么问题?以及如何解决这个问题?
Any idea what the problem is exactly ? and how to solve this ?
编辑
一些示例代码:
public partial class MyPage: System.Web.UI.Page
{
int UserId = 0;
protected void Page_Load(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["MyDbConn"].ConnectionString);
SqlCommand comm = new SqlCommand("SELECT * From Users, conn);
SqlDataReader reader;
conn.Open();
reader = comm.ExecuteReader();
//I'm not sure if I need those two lines:
AllBrandsRptr.DataSource = reader;
AllBrandsRptr.DataBind();
while (reader.Read())
{
UserId = (int)reader["UserId"];
}
conn.Close();
}
}
protected void AllBrandsRptr_ItemCommand(object source, RepeaterCommandEventArgs e)
{
Label LabelTest = (Label)e.Item.FindControl("MyTestLabel");
LabelTest.Text = UserId.ToString();
}
编辑2
我的Sql SELECT语句
My Sql SELECT Statement
string command1 = "SELECT Brands.BrandId, Brands.BrandName, Brands.BrandLogo, Brands.BrandWebsite, Brands.IsBrandVisible, Cuisines.CuisineType, VenueTypes.VenueTypeName FROM Brands FULL OUTER JOIN BrandCuisines ON BrandCuisines.BrandId = Brands.BrandId FULL OUTER JOIN Cuisines ON Cuisines.CuisineId = BrandCuisines.CuisineId FULL OUTER JOIN BrandVenueTypes ON BrandVenueTypes.BrandId = Brands.BrandId FULL OUTER JOIN VenueTypes ON VenueTypes.VenueTypeId = BrandVenueTypes.VenueTypeId";
我的过滤代码
conn.Open();
reader = comm.ExecuteReader();
AllBrandsRptr.DataSource = reader;
AllBrandsRptr.DataBind();
while (reader.Read())
{
if (((int)reader["BrandId"]) == BrandId) //this line to pass collecting some info, if I already iterated through the same Id
{
BrandId = (int)reader["BrandId"];
BrandName = (string)reader["BrandName"];
BrandLogo = (string)reader["BrandLogo"];
BrandWebsite = (string)reader["BrandWebsite"];
IsVisible = (bool)reader["IsBrandVisible"];
}
if (reader["CuisineType"] != DBNull.Value)
{
Cuisines += (string)reader["CuisineType"];
}
if (reader["VenueTypeName"] != DBNull.Value)
{
VenueTypes += ", " + (string)reader["VenueTypeName"];
}
conn.Close();
我的最初问题
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