namespace Mysite.Business
{
/// <summary>
/// Category 的摘要说明
/// </summary>
public class Category
{
DBOperate dboperate = new DBOperate();
public Category()
{
//
// TODO: 在此处添加构造函数逻辑
//
} /// <summary>
/// 绑定下拉列表框
/// </summary>
/// <param name="ddl">DropDownList控件名称</param>
public DataTable Bind_category()
{
string strSql = "select xm_name from tb_tree where left(ltrim(keytxt),2)='2_'";
OleDbDataAdapter oda = new OleDbDataAdapter(strSql, dboperate.cn);
DataSet ds = new DataSet();
oda.Fill(ds);
//ddl.DataSource = ds.Tables[0];
return ds.Tables[0];
}
}
}
public partial class admin_manager_Edit : System.Web.UI.Page
{
Category category = new Category();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ddl_category.DataSource = category.Bind_category();
ddl_category.DataBind();
}
}
}
解决方案 »
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ddl_category.DataValueField = "yy"
{
/// <summary>
/// Category 的摘要说明
/// </summary>
public class Category
{
DBOperate dboperate = new DBOperate();
public Category()
{
//
// TODO: 在此处添加构造函数逻辑
//
} /// <summary>
/// 绑定下拉列表框
/// </summary>
/// <param name="ddl">DropDownList控件名称</param>
public DataTable Bind_category()
{
string strSql = "select xm_name from tb_tree where left(ltrim(keytxt),2)='2_'";
OleDbDataAdapter oda = new OleDbDataAdapter(strSql, dboperate.cn);
DataSet ds = new DataSet();
oda.Fill(ds);
//ddl.DataSource = ds.Tables[0];
return ds.Tables[0].DefaultView;
}
}
}
{
Category category = new Category();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ddl_category.DataSource = category.Bind_category();
ddl_category.DataTextField = "text column";
ddl_category.DataValueField = "value column";
ddl_category.DataBind();
}
}
}
public partial class admin_manager_Edit : System.Web.UI.Page
{
Category category = new Category();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ddl_category.DataSource = category.Bind_category();
ddl_category.DataTextField = "text column";
ddl_category.DataValueField = "value column";
ddl_category.DataBind();
}
}
}
ddl_category.DataValueField = "value column";
这两个有什么区别啊