绑定到的NameValueCollection GridView的？ [英] Bind NameValueCollection to GridView?

问题描述

什么样的​​收藏我应该用转换NameValue集合是绑定到GridView的？
如果直接这样做没有工作。

What kind of collection I should use to convert NameValue collection to be bindable to GridView? When doing directly it didn't work.

code在aspx.cs

  private void BindList(NameValueCollection nvpList)
  {
     resultGV.DataSource = list;
     resultGV.DataBind();
  }

code在ASPX

<asp:GridView ID="resultGV" runat="server" AutoGenerateColumns="False" Width="100%">
    <Columns>
         <asp:BoundField DataField="Key" HeaderText="Key" />
         <asp:BoundField DataField="Value" HeaderText="Value" />
    </Columns>
</asp:GridView>

任何提示深受欢迎。谢谢。 [X]。

Any tip most welcome. Thanks. X.

推荐答案

你能使用字典＆LT;字符串，字符串＆GT;而不是NameValueCollection中。因为字典＆LT; T，T＆GT;实现IEnumerable你可以使用LINQ像这样：

Can you use Dictionary<string,string> instead of NameValueCollection. Since Dictionary<T,T> implements IEnumerable you could use LINQ as so:

resultGV.DataSource = from item in nvpDictionary
                      select new { Key = item.Key, Value = item.Value };
resultGV.DataBind();

其实你可以使用词典直接作为：

Actually you may be able to use Dictionary directly as:

resultGV.DataSource = nvpDictionary;
resultGV.DataBind();

如果它不映射键/值你愿意，你可以随时返回到LINQ的方式。 LINQ也将允许您重命名字段到任何你想要的。

If it doesn't map key/value the way you want you can always go back to LINQ. LINQ would also allow you to rename the fields to whatever you want.

如果你不能改变使用字典＆LT; T，T＆gt;中做出的NameValueCollection的副本作为一个字典的方法，并绑定到它

If you can't change to use Dictionary<T,T>, make a copy of the NameValueCollection as a Dictionary in the method and bind to it.

private void BindList(NameValueCollection nvpList)
{
   Dictionary<string,string> temp = new Dictionary<string,string>();
   foreach (string key in nvpList)
   {
      temp.Add(key,nvpList[key]);
   }

   resultGV.DataSource = temp;
   resultGV.DataBind();
}

如果你这样做了很多，你可以写一个扩展方法将转换为一个字典，并使用它如此。

If you do this a lot, you could write an extension method to convert to a Dictionary, and use it so.

public static class NameValueCollectionExtensions
{
   public static Dictionary<string,string> ToDictionary( this NameValueCollection collection )
   {
      Dictionary<string,string> temp = new Dictionary<string,string>();
      foreach (string key in collection)
      {
          temp.Add(key,collection[key]);
      }
      return temp;
   }
}

private void BindList(NameValueCollection nvpList)
{
   resultGV.DataSource = nvpList.ToDictionary();
   resultGV.DataBind();
}

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