Question

在我的ASP.Net应用程序中，使用存储过程从SQL Server表中填充“网格视图”，该存储过程根据存储的用户名从表中选择数据。我首先在名为“ DataAccessManager.cs”的单独C＃文件中管理存储的过程和数据：

public class DataAccessManager
{
    private string _connString;
    private Dictionary<string, string> _questions;
    private Dictionary<string, string> _answers;

    public DataAccessManager()
    {
        _connString = ConfigurationManager.ConnectionStrings["DevConnectionString"].ToString();
        _questions = new Dictionary<string, string>();
        _answers = new Dictionary<string, string>();
    }
    // 

    public DataTable GetTicketByOwnership(string UserName)
    {
        DataTable ticketDT = null;
        SqlConnection conn = null;

        try
        {
            conn = new SqlConnection(_connString);
            conn.Open();
            SqlCommand cmd = new SqlCommand("dbo.a_GetTicketByOwnership", conn);
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Parameters.Add("@UserName", SqlDbType.VarChar).Value = UserName;
            SqlDataAdapter adapter = new SqlDataAdapter(cmd);
            DataSet ds = new DataSet();
            adapter.Fill(ds);
            ticketDT = ds.Tables[0];
        }
        finally
        {
            if (conn != null)
            {
                conn.Close();
            }
        }
        return ticketDT;
    }
 ....  
}

然后我调用GetTicketByOwnership(string UserName)返回数据表ticketDT，以在页面加载时填充名为“ uxTicketGridView”的Gridview。

public partial class Summary : Page
{
    DataAccessManager _dtMgr;
    protected int _widestDataLength;
    DataTable _mainDT;

    protected void Page_Load(object sender, EventArgs e)
    {
        _widestDataLength = 0;
        _dtMgr = new DataAccessManager();
        Session["UserNameSession"] = "jbrown";
        Session["isUserAuthenticated"] = true;
        string staffName = _dtMgr.GetStaffNameByUser(Session["UserNameSession"].ToString());

        if (staffName == string.Empty)
        {
            //error
        }
        else
        {
            Session["StaffName"] = staffName;
            uxStaffNameTextbox.Text = "Hello " + staffName;
            _mainDT = _dtMgr.GetTicketByOwnership(Session["UserNameSession"].ToString());
 ....
            if (!Page.IsPostBack)
            {
                uxTktGridView.DataSource = _mainDT;
                uxTktGridView.DataBind();
     ....

在HTML中，使用asp:GridView选择按钮将CommandField添加到DOM：

 <asp:GridView ID="uxTktGridView" runat="server" CssClass="GridView" BorderStyle="Solid" onRowDataBound="uxTktGridView_RowDataBound" OnSorting="uxTktGridView_Sorting" BackColor="White" BorderColor="#D6D2D2" BorderWidth="1px" CellPadding="3" SelectedIndex="-1" AllowSorting="True"  Font-Size="Small" Width="100%" Visible="True" EnableModelValidation="True" style=" margin-top: 10px; margin-bottom: 10px;">
     <Columns>
         <asp:CommandField ShowSelectButton="True" SelectText="Details" ButtonType="Button" HeaderText="Select" />
     </Columns>
        ....
</asp:GridView>

我现在的问题是'如何在不使用gridview的情况下添加功能来选择asp:BoundFields中的行？那可能吗？单击按钮后，我已经可以选择行了，但是我需要从该行中提取一条信息（例如'Ticket Number'列中的值），以便在另一个{{{ 1}}或类似的东西。当我尝试按列添加string ticketNumber = uxRowSelected.SelectedValue("Ticket Number");等时，我得到了所有内容的两倍。有什么建议吗？

Answer 1

我不确定这是否是您所需要的。但是您始终可以使用DataKeyNames。您可以在GridView中定义它们

<asp:GridView ID="GridView1" runat="server" DataKeyNames="id, name">

然后，您始终可以使用正确的行号和DataKey访问这些值。

protected void Button1_Click(object sender, EventArgs e)
{
    int id = Convert.ToInt32(GridView1.DataKeys[i].Values[0]);
    string name = GridView1.DataKeys[i].Values[1].ToString();
}

如何在不使用asp：BoundFields的情况下在Grid View中选择行

1 个答案: