指数超出范围。必须是非负数且小于集合的大小

编译我的网格视图以显示一组订单时，我得到的索引超出范围例外。指数超出范围。必须是非负数且小于集合的大小

当我尝试删除或更新一行时，它不会发生，当我添加一个新行，但它确实发生。

任何帮助，非常感谢。

设计师是：

<asp:GridView ID="GridView1" 
         runat="server" 
         AutoGenerateColumns="False" 
         DataKeyNames="" 
         OnRowCancelingEdit="GridView1_RowCancelingEdit" 
         OnRowEditing="GridView1_RowEditing" 
         OnRowUpdating="GridView1_RowUpdating" 
         OnRowCommand="GridView1_RowCommand" 
         ShowFooter="True" 
         OnRowDeleting="GridView1_RowDeleting"> 

      <Columns> 
       <asp:TemplateField ShowHeader="False"> 
        <EditItemTemplate> 
         <asp:Button ID="Button1" runat="server" CausesValidation="True" CommandName="Update" Text="Update" /> 
         <asp:Button ID="Button2" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel" /> 
        </EditItemTemplate> 
        <ItemTemplate> 
         <asp:Button ID="editButton" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit" /> 
        </ItemTemplate> 
        <FooterTemplate> 
         <asp:Button ID="LinkButton2" runat="server" CausesValidation="False" CommandName="AddNew" Text="Add New"></asp:Button> 
        </FooterTemplate> 
       </asp:TemplateField> 
       <asp:TemplateField HeaderText="Order ID"> 
        <EditItemTemplate> 
         <asp:TextBox ID="txtOrderID" runat="server" Text='<%# Bind("OrderID") %>'></asp:TextBox> 
        </EditItemTemplate> 
        <FooterTemplate> 
         <asp:TextBox ID="txtNewOrderID" runat="server"></asp:TextBox> 
        </FooterTemplate> 
        <ItemTemplate> 
         <asp:Label ID="Label1" runat="server" Text='<%# Bind("OrderID") %>'></asp:Label> 
        </ItemTemplate> 
       </asp:TemplateField> 
       <asp:TemplateField HeaderText="Date"> 
        <EditItemTemplate> 
         <asp:TextBox ID="txtDate" runat="server" Text='<%# Bind("Date") %>'></asp:TextBox> 
        </EditItemTemplate> 
        <FooterTemplate> 
         <asp:TextBox ID="txtNewDate" runat="server"></asp:TextBox> 
        </FooterTemplate> 
        <ItemTemplate> 
         <asp:Label ID="Label2" runat="server" Text='<%# Bind("Date") %>'></asp:Label> 
        </ItemTemplate> 
       </asp:TemplateField> 
       <asp:TemplateField HeaderText="Order Taken by"> 
        <EditItemTemplate> 
         <asp:TextBox ID="txtOrderTaker" runat="server" Text='<%# Bind("OrderTaker") %>'></asp:TextBox> 
        </EditItemTemplate> 
        <FooterTemplate> 
         <asp:TextBox ID="txtNewOrderTaker" runat="server"></asp:TextBox> 
        </FooterTemplate> 
        <ItemTemplate> 
         <asp:Label ID="Label3" runat="server" Text='<%# Bind("OrderTaker") %>'></asp:Label> 
        </ItemTemplate> 
       </asp:TemplateField> 
       <asp:TemplateField HeaderText="Order By"> 
        <EditItemTemplate> 
         <asp:TextBox ID="txtOrderBy" runat="server" Text='<%# Bind("OrderBy") %>'></asp:TextBox> 
        </EditItemTemplate> 
        <FooterTemplate> 
         <asp:TextBox ID="txtNewOrderBy" runat="server"></asp:TextBox> 
        </FooterTemplate> 
        <ItemTemplate> 
         <asp:Label ID="Label4" runat="server" Text='<%# Bind("OrderBy") %>'></asp:Label> 
        </ItemTemplate> 
       </asp:TemplateField> 
       <asp:TemplateField HeaderText="Lens Material"> 
        <EditItemTemplate> 
         <asp:TextBox ID="txtMaterial" runat="server" Text='<%# Bind("Material") %>'></asp:TextBox> 
        </EditItemTemplate> 
        <FooterTemplate> 
         <asp:TextBox ID="txtNewMaterial" runat="server"></asp:TextBox> 
        </FooterTemplate> 
        <ItemTemplate> 
         <asp:Label ID="Label5" runat="server" Text='<%# Bind("Material") %>'></asp:Label> 
        </ItemTemplate> 
       </asp:TemplateField> 
       <asp:TemplateField HeaderText="Tint"> 
        <EditItemTemplate> 
         <asp:TextBox ID="txtTint" runat="server" Text='<%# Bind("Tint") %>'></asp:TextBox> 
        </EditItemTemplate> 
        <FooterTemplate> 
         <asp:TextBox ID="txtNewTint" runat="server"></asp:TextBox> 
        </FooterTemplate> 
        <ItemTemplate> 
         <asp:Label ID="Label6" runat="server" Text='<%# Bind("Tint") %>'></asp:Label> 
        </ItemTemplate> 
       </asp:TemplateField> 
       <asp:TemplateField HeaderText="BCOR"> 
        <EditItemTemplate> 
         <asp:TextBox ID="txtBCOR" runat="server" Text='<%# Bind("BCOR") %>'></asp:TextBox> 
        </EditItemTemplate> 
        <FooterTemplate> 
         <asp:TextBox ID="txtNewBCOR" runat="server"></asp:TextBox> 
        </FooterTemplate> 
        <ItemTemplate> 
         <asp:Label ID="Label7" runat="server" Text='<%# Bind("BCOR") %>'></asp:Label> 
        </ItemTemplate> 
       </asp:TemplateField> 
       <asp:TemplateField HeaderText="Power"> 
        <EditItemTemplate> 
         <asp:TextBox ID="txtPower" runat="server" Text='<%# Bind("Power") %>'></asp:TextBox> 
        </EditItemTemplate> 
        <FooterTemplate> 
         <asp:TextBox ID="txtNewPower" runat="server"></asp:TextBox> 
        </FooterTemplate> 
        <ItemTemplate> 
         <asp:Label ID="Label8" runat="server" Text='<%# Bind("Power") %>'></asp:Label> 
        </ItemTemplate> 
       </asp:TemplateField> 
       <asp:TemplateField HeaderText="Diameter"> 
        <EditItemTemplate> 
         <asp:TextBox ID="txtDiameter" runat="server" Text='<%# Bind("Diameter") %>'></asp:TextBox> 
        </EditItemTemplate> 
        <FooterTemplate> 
         <asp:TextBox ID="txtNewDiameter" runat="server"></asp:TextBox> 
        </FooterTemplate> 
        <ItemTemplate> 
         <asp:Label ID="LabelDiameter" runat="server" Text='<%# Bind("Diameter") %>'></asp:Label> 
        </ItemTemplate> 
       </asp:TemplateField> 
       <asp:TemplateField HeaderText="Design"> 
        <EditItemTemplate> 
         <asp:TextBox ID="txtDesign" runat="server" Text='<%# Bind("Design") %>'></asp:TextBox> 
        </EditItemTemplate> 
        <FooterTemplate> 
         <asp:TextBox ID="txtNewDesign" runat="server"></asp:TextBox> 
        </FooterTemplate> 
        <ItemTemplate> 
         <asp:Label ID="Label9" runat="server" Text='<%# Bind("Design") %>'></asp:Label> 
        </ItemTemplate> 
       </asp:TemplateField> 
       <asp:TemplateField HeaderText="Notes"> 
        <EditItemTemplate> 
         <asp:TextBox ID="txtNotes" runat="server" Text='<%# Bind("Notes") %>'></asp:TextBox> 
        </EditItemTemplate> 
        <FooterTemplate> 
         <asp:TextBox ID="txtNewNotes" runat="server" TextMode="MultiLine"></asp:TextBox> 
        </FooterTemplate> 
        <ItemTemplate> 
         <asp:Label ID="Label10" runat="server" Text='<%# Bind("Notes") %>'></asp:Label> 
        </ItemTemplate> 
       </asp:TemplateField> 
       <asp:CommandField HeaderText="Delete" ShowDeleteButton="True" ShowHeader="True" /> 
      </Columns>    
     </asp:GridView>

代码隐藏是：

public class LensOrdersCls 
{ 

    private string cnstr = ConfigurationManager.ConnectionStrings["PatientConnectionString"].ConnectionString; 
    private string sql; 

    public LensOrdersCls() 
    { 
     // 
     // TODO: Add constructor logic here 
     // 
    } 

    public void Insert(int OrderID, string Date, string OrderTaker, string OrderBy, string Material, string Tint, string BCOR, string Power, string Diameter, string Design, string Notes) 
    { 
     string sql = "Insert Into LensOrders (OrderID, Date, OrderTaker, OrderBy, Material, Tint, BCOR, Power, Diameter, Design, Notes) Values ('" + OrderID 
      + "' , '" + Date + "', '" + OrderTaker + "', '" + OrderBy + "', '" + Material + "' , '" + Tint + "' , '" + BCOR + "' , '" + Power + "', '" + Diameter + "', '" + Design + "', '" + Notes + "')"; 

     SqlConnection conn = new SqlConnection(cnstr); 
     conn.Open(); 
     SqlCommand cmd = new SqlCommand(sql, conn); 
     cmd.ExecuteNonQuery(); 
     conn.Close(); 
     conn.Dispose(); 
    } 

    public DataTable Fetch() 
    { 
     string sql = "Select * From LensOrders"; 
     SqlDataAdapter da = new SqlDataAdapter(sql, cnstr); 
     DataTable dt = new DataTable(); 
     da.Fill(dt); 
     return dt; 
    } 



    public void Update(int OrderID, string Date, string OrderTaker, string OrderBy, string Material, string Tint, string BCOR, string Power, string Diameter, string Design, string Notes) 
    { 
     string sql = "UPDATE LensOrders SET OrderID='" + OrderID + "', Date = '" + Date 
      + "', OrderTaker='" + OrderTaker + "', OrderBy = '" + OrderBy + "' Material=" + Material + "' Tint= '" + Tint + "' BCOR= '" + BCOR + "' Power '" + Power + "' Diameter= '" + Diameter + "' Design= '" + Design + "' Notes= '" + Notes; 
     SqlConnection conn = new SqlConnection(cnstr); 
     conn.Open(); 
     SqlCommand cmd = new SqlCommand(sql, conn); 
     cmd.ExecuteNonQuery(); 
     conn.Close(); 
     conn.Dispose(); 
    } 

    public void Delete(int OrderID) 
    { 
     string sql = "Delete LensOrders Where OrderID=" + OrderID; 
     SqlConnection conn = new SqlConnection(cnstr); 
     conn.Open(); 
     SqlCommand cmd = new SqlCommand(sql, conn); 
     cmd.ExecuteNonQuery(); 
     conn.Close(); 
     conn.Dispose(); 
    } 

}

页面代码隐藏是：

public partial class Default : System.Web.UI.Page 
{ 
    LensOrdersCls LensOrder = new LensOrdersCls(); 

    private void FillOrdersInGrid() 
    { 
     DataTable dtOrder = LensOrder.Fetch(); 

     if (dtOrder.Rows.Count > 0) 
     { 
      GridView1.DataSource = dtOrder; 
      GridView1.DataBind(); 
     } 
     else 
     { 
      dtOrder.Rows.Add(dtOrder.NewRow()); 
      GridView1.DataSource = dtOrder; 
      GridView1.DataBind(); 

      int TotalColumns = GridView1.Rows[0].Cells.Count; 
      GridView1.Rows[0].Cells.Clear(); 
      GridView1.Rows[0].Cells.Add(new TableCell()); 
      GridView1.Rows[0].Cells[0].ColumnSpan = TotalColumns; 
      GridView1.Rows[0].Cells[0].Text = "No Record Found"; 
     } 
    } 

    protected void Page_Load(object sender, EventArgs e) 
    { 
     if (!IsPostBack) 
     { 
      FillOrdersInGrid(); 
      test.Text = GridView1.Rows[0].Cells.Count.ToString(); 
     } 
    } 


    protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e) 
    { 
     if (e.CommandName.Equals("AddNew")) 
     { 
      TextBox txtNewOrderID =  (TextBox)GridView1.FooterRow.FindControl("txtNewOrderID"); 
      TextBox txtNewDate =  (TextBox)GridView1.FooterRow.FindControl("txtNewDate"); 
      TextBox txtNewOrderTaker = (TextBox)GridView1.FooterRow.FindControl("txtNewOrderTaker"); 
      TextBox txtNewOrderBy =  (TextBox)GridView1.FooterRow.FindControl("txtNewOrderBy"); 
      TextBox txtNewMaterial = (TextBox)GridView1.FooterRow.FindControl("txtNewMaterial"); 
      TextBox txtNewTint =  (TextBox)GridView1.FooterRow.FindControl("txtNewTint"); 
      TextBox txtNewBCOR =  (TextBox)GridView1.FooterRow.FindControl("txtNewBCOR"); 
      TextBox txtNewPower =  (TextBox)GridView1.FooterRow.FindControl("txtNewPower"); 
      TextBox txtNewDiameter = (TextBox)GridView1.FooterRow.FindControl("txtNewDiameter"); 
      TextBox txtNewDesign =  (TextBox)GridView1.FooterRow.FindControl("txtNewDesign"); 
      TextBox txtNewNotes =  (TextBox)GridView1.FooterRow.FindControl("txtNewNotes"); 

      LensOrder.Insert(Convert.ToInt32(txtNewOrderID.Text), 
          txtNewDate.Text, 
          txtNewOrderTaker.Text, 
          txtNewOrderBy.Text, 
          txtNewMaterial.Text, 
          txtNewTint.Text, 
          txtNewBCOR.Text, 
          txtNewPower.Text, 
          txtNewDiameter.Text, 
          txtNewDesign.Text, 
          txtNewNotes.Text); 

      FillOrdersInGrid(); 
     } 
    } 

    // Row Editing 
    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) 
    { 
     GridView1.EditIndex = e.NewEditIndex; 
     FillOrdersInGrid(); 
    } 

    // Row Cancel editing 
    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e) 
    { 
     GridView1.EditIndex = -1; 
     FillOrdersInGrid(); 
    } 

    //Row updating 
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e) 
    { 
     TextBox txtOrderID = (TextBox)GridView1.Rows[e.RowIndex].FindControl("txtOrderID"); 
     TextBox txtDate =  (TextBox)GridView1.Rows[e.RowIndex].FindControl("txtDate"); 
     TextBox txtOrderTaker = (TextBox)GridView1.Rows[e.RowIndex].FindControl("txtOrderTaker"); 
     TextBox txtOrderBy = (TextBox)GridView1.Rows[e.RowIndex].FindControl("txtNewOrderBy"); 
     TextBox txtMaterial = (TextBox)GridView1.Rows[e.RowIndex].FindControl("txtMaterial"); 
     TextBox txtTint =  (TextBox)GridView1.Rows[e.RowIndex].FindControl("txtTint"); 
     TextBox txtBCOR =  (TextBox)GridView1.Rows[e.RowIndex].FindControl("txtBCOR"); 
     TextBox txtPower =  (TextBox)GridView1.Rows[e.RowIndex].FindControl("txtPower"); 
     TextBox txtDiameter = (TextBox)GridView1.Rows[e.RowIndex].FindControl("txtDiameter"); 
     TextBox txtDesign =  (TextBox)GridView1.Rows[e.RowIndex].FindControl("txtDesign"); 
     TextBox txtNotes =  (TextBox)GridView1.Rows[e.RowIndex].FindControl("txtNotes"); 

     LensOrder.Update(Convert.ToInt32(GridView1.DataKeys[e.RowIndex].Values[0].ToString()), 
         txtDate.Text, 
         txtOrderTaker.Text, 
         txtOrderBy.Text, 
         txtMaterial.Text, 
         txtTint.Text, 
         txtBCOR.Text, 
         txtPower.Text, 
         txtDiameter.Text, 
         txtDesign.Text, 
         txtNotes.Text); 

     GridView1.EditIndex = -1; 
     FillOrdersInGrid(); 
    } 

    //Deleting row 

    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e) 
    { 
     LensOrder.Delete(Convert.ToInt32(GridView1.DataKeys[e.RowIndex].Values[0].ToString())); 
     FillOrdersInGrid(); 
    } 
}

来源

2010-02-21 XGreen

你不设置的名称数据键为Grid，但您的删除方法引用DataKeys [e.RowIndex]。我认为这是抛出异常的地方。

在您的标记中设置DataKeyNames =“OrderId”。

来源

2010-02-21 17:59:36 cdonner

嗨CDonner，谢谢，这是我看过的东西，但仍然存在问题仍然存在。 – XGreen 2010-02-21 18:05:25

哎呀，我的歉意。那是答案。非常感谢。 – XGreen 2010-02-21 18:07:37

指数超出范围。必须是非负数且小于集合的大小

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