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我正在开发 C# asp.net Web 应用程序。它包含一个网格视图、文本框和一个按钮。我想要的是当我在文本框中键入 1 并输入按钮然后自动选择第一行并定向到另一个页面，其中包含我的代码中所选行的更多详细信息可以通过使用鼠标单击超链接重定向到下一页...但这不是我的要求。这是我的代码

    <asp:TextBox ID="txtindex" runat="server"></asp:TextBox>
    &nbsp;<asp:Button ID="Button1" runat="server" Font-Bold="True" Height="39px" 
        onclick="Button1_Click" Text="go" Width="53px" />
    <br />
    <br />
    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 
        DataKeyNames="acno" DataSourceID="SqlDataSource1">
        <Columns>
            <asp:BoundField DataField="acno" HeaderText="acno" InsertVisible="False" 
                ReadOnly="True" SortExpression="acno" />
            <asp:HyperLinkField DataNavigateUrlFields="acno"  HeaderText="username"     
           DataNavigateUrlFormatString="~/details.aspx?acno={0}" Target="_blank"                 DatatextField="username"     SortExpression="username" />
            <asp:BoundField DataField="rdate" HeaderText="rdate" SortExpression="rdate" />
        </Columns>
    </asp:GridView>
    <br />
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:postofficeConnectionString %>" 
        SelectCommand="SELECT [acno], [username], [rdate] FROM [customer]">
    </asp:SqlDataSource>

默认.aspx.cs

 protected void Button1_Click(object sender, EventArgs e)
{
    GridView1.SelectedIndex = int.Parse(txtindex.Text);
    int aid = Convert.ToInt32(GridView1.DataKeys[GridView1.SelectedIndex].Values[0]);

    Response.Redirect("details.aspx?acno{0}");
}

详细信息.aspx.cs

`

protected void Page_Load(object sender, EventArgs e)
    {
        int id =int.Parse( Request.QueryString["acno"]);
        con.Open();
        SqlCommand cmd=new SqlCommand("select acno,username,states,district,fname,lname from customer where acno='"+id+"'",con);
        SqlDataReader dr;
        dr=cmd.ExecuteReader();
        while(dr.Read())
        {
            Label1.Text=dr[0].ToString();
            Label2.Text=dr[1].ToString();
            Label3.Text=dr[2].ToString();
            Label4.Text=dr[3].ToString();
            Label5.Text=dr[4].ToString();
            Label6.Text=dr[5].ToString();
        }

        con.Close();
 }
4

1 回答 1

3 
int index = int.Parse(txtindex.Text);
int aid = Convert.ToInt32(GridView1.DataKeys[index].Value.ToString());

Response.Redirect(string.Format("details.aspx?acno={0}", aid));

你最好用它int.TryParse来检查用户输入

int index,aid;
if (int.TryParse(txtindex.Text, out index) && 
    int.TryParse((GridView1.DataKeys[index].Value.ToString()) , out aid))
{
    Response.Redirect(string.Format("details.aspx?acno={0}", aid));
}
于 2013-08-29T05:56:27.993 回答