C#中的GridView超链接字段 [英] GridView HyperLink field in C#

问题描述

看看下面的代码:

<asp:HyperLinkField 
    DataNavigateUrlFields="NameID" 
    DataNavigateUrlFormatString="names.aspx?nameid={0}"
    DataTextField="name" 
    HeaderText="Name" 
    ItemStyle-Width="100px"
    ItemStyle-Wrap="true" />

导航到下一页只需要名称 id.我将如何包含不在 gridview 中的另外两个参数.我使用的导航 URL 必须采用 gridview 中已经存在的关键字和数据库表中的其他两个参数.我尝试使用所有这些代码.没有什么对我有用.

It takes only the name id to navigate to the next page. How will I include the two other parameters which are not in the gridview. The navigate URL I'm using has to take the keyword which is already present in the gridview and the other two parameters from the database table. I tried using all these codes. Nothing did work for me.

<asp:HyperLinkField DataTextField="Keyword" DataNavigateUrlFields="Keyword"
    DataNavigateUrlFormatString="KeywordSrchSumDtl.aspx?Keyword={0}&State={1}&City={2}"
    HeaderStyle-VerticalAlign="Bottom" ItemStyle-HorizontalAlign="center" />

我不能使用上面的代码，因为州和城市不在 GridView 中，但在我的数据表中可用.

I cant use the above the code because the state and city are not in the GridView but available in my data table.

我也尝试使用以下代码，但不起作用:

I tried using the following code too, but it doesn't work:

 <asp:TemplateField HeaderText="Keyword"  ItemStyle-HorizontalAlign="Center" FooterStyle-HorizontalAlign="Center">
    <ItemTemplate>
        <asp:HyperLink ID="link" runat="server" NavigateUrl='<% # "KeywordSrchSumDtl.aspx?Keyword="Eval("Keyword")+"&State="+Request.QueryString["State"]%>' Text='<%# Eval("Keyword") %>'>
        </asp:HyperLink>
    </ItemTemplate>
</asp:TemplateField>

我也试过这个:

        <asp:HyperLink ID="Link1" runat="Server" NavigateUrl='<%#redirectURL()+Server.UrlEncode((Eval("Keyword")).ToString())%>' Text='<%# DataBinder.Eval(Container.DataItem,"Keyword") %>'>
        </asp:HyperLink>
    </ItemTemplate>
</asp:TemplateField>

.aspx.cs

return "KeywordSrchSumDtl.aspx?Keyword=" + 
    //I DONNO HOW TO CALL THE KEYWORD HERE//
    + "&State=" + System.Web.HttpContext.Current.Request.QueryString["State"]
    + "&City=" + System.Web.HttpContext.Current.Request.QueryString["City"];

我不知道如何解决这个问题.

I don't know how to solve this.

推荐答案

使用 DataNavigateUrlFields 属性，以逗号分隔的值与 "KeywordSrchSumDtl.aspx?Keyword={0}&State={1}&City={2}"

Use the DataNavigateUrlFields property, comma-delimited value with the fields for parameters in "KeywordSrchSumDtl.aspx?Keyword={0}&State={1}&City={2}"

<asp:HyperLinkField DataNavigateUrlFields="Keyword,State,City"
                    DataNavigateUrlFormatString="KeywordSrchSumDtl.aspx?Keyword={0}&State={1}&City={2}" 
                    Text="View Details" />

举几个例子:

在.NET 2.0 Grid-View 的超链接字段中的DataNavigateUrlFormatString 中传递两个参数

使用 ASP.NET 将多个值从 GridView 传递到另一个页面

在GridView

<asp:GridView ID="GridView1" runat="server" 
              AutoGenerateColumns="False" 
              DataKeyNames="Keyword"
              DataSourceID="SqlDataSource1" 
              onrowdatabound="GridView1_RowDataBound">
   <asp:TemplateField HeaderText="Keyword"  ItemStyle-HorizontalAlign="Center"          FooterStyle-HorizontalAlign="Center">
      <ItemTemplate>
          <asp:HyperLink ID="link" runat="server" Text='<%# Eval("Keyword") %>' />
      </ItemTemplate>
    </asp:TemplateField>
    .......
</asp:GridView>

背后的代码:

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) 
{ 
 if (e.Row.RowType == DataControlRowType.DataRow) 
 { 
    HyperLink hl = (HyperLink)e.Row.FindControl("link"); 
    if (hl != null) 
    { 
        DataRowView drv = (DataRowView)e.Row.DataItem; 
        string keyword = drv["Keyword"].ToString(); 
        string state = Request.QueryString["State"]; 
        string city = Request.QueryString["City"]; 
        hl.NavigateUrl = "~/KeywordSrchSumDtl.aspx?Keyword=" + keyword + "&State=" + Server.UrlEncode(state) + "&City=" + Server.UrlEncode(city); 
    } 
 } 
}

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