無法在中繼器內找到我的文本框

Question

我在爲一家咖啡館製作菜單。它顯示食物和溜冰場的物品，價格，然後我想要一個文本框，人們可以在文本框中顯示他們想購買的每個商品的數量。然後，我希望每個文本框都具有基於菜單項ID的唯一ID。

這是我轉發：

<asp:Repeater ID="ParentRepeater" runat="server" OnItemDataBound="ParentRepeater_ItemDataBound"> 
     <ItemTemplate> 
      <h2> 
       <%#DataBinder.Eval(Container.DataItem, "typenavn") %></h2> 
      <asp:HiddenField ID="HiddenField1" Value='<%# Eval("id") %>' runat="server" /> 
      <asp:Repeater ID="ChildRepeater" runat="server"> 
       <ItemTemplate> 
        <table> 
         <tr> 
          <td style="width: 400px"> 
           <%#DataBinder.Eval(Container.DataItem, "productName") %> 
          </td> 
          <td style="width: 400px"> 
           <%#DataBinder.Eval(Container.DataItem, "pris") %> 
          </td> 
          <td> 
           <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> 
          </td> 
         </tr> 
        </table> 
       </ItemTemplate> 
      </asp:Repeater> 
     </ItemTemplate> 
    </asp:Repeater> 

這是我的代碼背後：

protected void ParentRepeater_ItemDataBound(object sender, RepeaterItemEventArgs e) 
    { 
     RepeaterItem item = e.Item; 

     if (item.ItemType == ListItemType.Item || item.ItemType == ListItemType.AlternatingItem) 
     { 
      Repeater ChildRepeater = (Repeater)item.FindControl("ChildRepeater"); 

      HiddenField hide = e.Item.FindControl("HiddenField1") as HiddenField; 
      int id = Convert.ToInt32(hide.Value); 

      var query = from es in gr.products 
         where es.typeID == id 
         select es; 

      List<product> list = new List<product>(); 
      foreach (product pro in query) 
      { 
       list.Add(pro); 
      } 

      ChildRepeater.DataSource = list; 
      ChildRepeater.DataBind(); 

      int h = 0; 

      foreach (RepeaterItem item1 in ChildRepeater.Items) 
      { 
       if (item1.ItemType == ListItemType.Item || item1.ItemType == ListItemType.AlternatingItem) 
       { 
        TextBox txt = (TextBox)item1.FindControl("TextBox1") as TextBox; 
        HiddenField hf = (HiddenField)item1.FindControl("HiddenField2") as HiddenField; 

        for (int i = 0; i < list.Count; i++) 
        { 
         txt.ID = "HB" + list[h].id.ToString(); 
         hf.Value = list[h].id.ToString(); 
         h++; 
         break; 
        } 
       } 
      } 
     } 
    } 

任何人有關於如何找到文本框的任何想法？

Answer 1

您必須搜索RepeaterItem中的文本框。讓你無論是處理內部Repeater的ItemDataBound事件，或者你只是遍歷所有RepeaterItems：

foreach(RepeaterItem item in ChildRepeater.Items){ 
    if(item.ItemType == ListItemType.Item || item.ItemType == ListItemType.AlternatingItem){ 
    var txt = (TextBox)item.FindControl("TextBox1"); 
    } 
}