如何使用C＃给出指向标签的链接并将查询字符串传递给asp.net中的另一个页面

Question

I have asp.net page with SQL server 2008 as database. I have 3 stored procedures . one for total count of users in tbl_users and onother for total man users and last for woman users. and i have 3 labels for display count of records. I Want to give link to the labels so that when we click on label, open another page and run related stored procedure. and show detail in grid view. For eg : enter image description here

<a href="show_records.aspx?val="+Label1.Text;"><asp:Label ID="lbl_total_records" runat="server"
</asp:Label></a>

But this code dont work . please help me.

Answer 1

Use the LinkButton control instead:

<asp:LinkButton runat="server" ID="lnk_total_records" />

This functions the same as an HTML anchor tag but allows you to set the attributes from the code behind like so:

protected void Page_Load(object sender, EventArgs e)
{
    lnk_total_records.Text = "LinkText";
    lnk_total_records.PostBackUrl = "show_records.aspx?val=LinkText";
}

Answer 2

I think what you are trying to do is this:

<a href="show_records.aspx?val=<%=lbl_total_records.Text%>"><asp:LabelID="lbl_total_records" runat="server" Text="1"></asp:Label></a>

This will properly concatenate the text of the label to your link. The "<%= %>" tags are shortcut for Response.Write().

You can then get the value from your query string on the show_records.aspx page like this:

if (Request.QueryString["val"] != null)
{
     string value = Request.QueryString["val"].ToString();
     //logic here to call the correct stored procedure based on value
}