Asp：listview使用带参数的方法设置selectmethod [英] Asp:listview set selectmethod with a method having parameter

问题描述

我有一个像这样的Listview控件

 <   asp：ListView     ID   =  categoryList    ItemType   =  CodeCamper.EntityLayer.Transaction.FavoriteVO    DataKeyNames   =  FavoriteID    GroupItemCount   =  1    SelectMethod   =  GetCategories    runat   =  server >  
 <   / asp：ListView  >  

和后面的代码我正在设置SelectMethod属性

 categoryList.SelectMethod =   GetbyTime 

现在，如果我想调用参数化方法

  public 列表< FavoriteVO> GetbyTime（ string 消息）
 {
 
} 

我如何修改并分配到categoryList.SelectMethod =部分？



我尝试过： < br $> b $ b

 <   asp：ListView     ID   =  categoryList    ItemType   =  CodeCamper.EntityLayer.Transaction.FavoriteVO    DataKeyNames   =  FavoriteID    GroupItemCount   =  1    SelectMethod   =  GetCategories    runat   = 服务器 >  
 <   / asp：ListView  >  

< pre lang =c＃> categoryList.SelectMethod = GetbyTime

< br $> b $ b

  public 列表< FavoriteVO> GetbyTime（ string 消息）
 {
 
} 

 <   ul     class   =  nav nav-pills nav-stacked >  
 <   asp：Repeater     ID   =  SessionVORepeater    runat   =  server    OnItemCommand   =   SessionVORepeater_ItemCommand >  
  <   ItemTemplate  >  
 <   li     class   = 有效 >  
 <％ -    < a href =＃runat =serveronserverclick =MyFuncion_ClickCommandName =ViewPDF><％＃DataBinder.Eval（Container.DataItem，SessionTimeSlot）％>< / a>    -  - ％>   
 < ;   asp：按钮    ID   =  Button1    class   =  btn btn-primary    runat   =  server   文字  ='  <％＃DataBinder.Eval（Container.DataItem，   SessionTimeSlot）％> '    CommandName   =  ViewDetails    CommandArgument   ='  <％＃DataBinder.Eval（ Container.DataItem，  SessionTimeSlot）％> '    OnClick   =  MyFuncion_Click  /  >  
 <   / li  >  
 <   / ItemTemplate  >  
 <   / asp：Repeater  >  
 <％ -    < li class =active>< a HREF = ＃ >家庭和LT; / A>< /锂> 
< li class =active>< a href =＃> sfsfs< / a>< / li>    - ％>   
 <   / ul  >  

  protected   void  MyFuncion_Click（ object  sender，EventArgs e）
 {
 Button btn =（Button）sender; 
 RepeaterItem item =（RepeaterItem）btn.NamingContainer; 
按钮btnNewNumber0 =（按钮）item.FindControl（  Button1）; 
 System.Web.HttpContext.Current.Response.Write（ ）; 
 
 categoryList.SelectMethod =   GetbyTime; 
} 

解决方案

看起来你正在使用Model Bindings。根据此处的文档：练习1：ASP.NET Web窗体中的模型绑定 [ ^ ]



在method参数上，您可以使用值提供程序属性来指定值的数据源。例如：



页面控件

查询字符串值

查看数据

会话状态

Cookies

发布表格数据

查看状态

支持自定义价值提供商



因此，例如，您希望将参数传递给Select Method以根据控件值过滤结果，您可以执行以下操作：

  public 列表< favoritevo> GetbyTime（[Control]  string  TextBox1）
 {
  //  您的代码逻辑 
} 

I have a Listview controls like this

<asp:ListView ID="categoryList" ItemType="CodeCamper.EntityLayer.Transaction.FavoriteVO" DataKeyNames="FavoriteID" GroupItemCount="1" SelectMethod="GetCategories" runat="server">                      
</asp:ListView>

and in the code behind I'm setting the SelectMethod property

categoryList.SelectMethod = "GetbyTime"

Now if I want to call a parameterized method

public List<FavoriteVO> GetbyTime(string message)
        {
           
        }

How do I have to modify and assign to categoryList.SelectMethod = section ?

What I have tried:

<asp:ListView ID="categoryList" ItemType="CodeCamper.EntityLayer.Transaction.FavoriteVO" DataKeyNames="FavoriteID" GroupItemCount="1" SelectMethod="GetCategories" runat="server">                      
</asp:ListView>

categoryList.SelectMethod = "GetbyTime"

public List<FavoriteVO> GetbyTime(string message)
        {
           
        }

<ul class="nav nav-pills nav-stacked">
                      <asp:Repeater ID="SessionVORepeater" runat="server" OnItemCommand="SessionVORepeater_ItemCommand">
                           <ItemTemplate>
                               <li class="active">
                                   <%--<a href="#" runat="server" onserverclick="MyFuncion_Click" CommandName="ViewPDF" ><%# DataBinder.Eval(Container.DataItem, "SessionTimeSlot") %></a>--%>
                                    <asp:Button ID="Button1" class="btn btn-primary" runat="server" Text='<%#DataBinder.Eval(Container.DataItem, "SessionTimeSlot") %>' CommandName="ViewDetails" CommandArgument='<%#DataBinder.Eval(Container.DataItem,"SessionTimeSlot") %>' OnClick="MyFuncion_Click"/>
                               </li>
                           </ItemTemplate>
                       </asp:Repeater>
                      <%-- <li class="active"><a href="#">Home</a></li>
                        <li class="active"><a href="#">sfsfs</a></li>--%>
                   </ul>

protected void MyFuncion_Click(object sender, EventArgs e)
        {
             Button btn = (Button) sender;
             RepeaterItem item = (RepeaterItem) btn.NamingContainer;
             Button btnNewNumber0 = (Button)item.FindControl("Button1");
             System.Web.HttpContext.Current.Response.Write("");

             categoryList.SelectMethod = "GetbyTime";
        }

解决方案

It looks like you were using Model Bindings. According to the documentation here: Exercise 1: Model Binding in ASP.NET Web Forms[^]

On the method parameter, you can use value provider attributes to specify the value’s data source. For example:

Controls on the page
Query string values
View data
Session state
Cookies
Posted form data
View state
Custom value providers are supported as well

So for example you want pass a parameter to your Select Method to filter the result based from a control value, you can do something like:

public List<favoritevo> GetbyTime([Control]string TextBox1)
{
            //your code logic here
}

这篇关于Asp：listview使用带参数的方法设置selectmethod的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！