Gridviewページングの問題、前のページに進むときの範囲外の議論

Question

Specified argument was out of the range of valid values.
Parameter name: value
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: value

Source Error:

Line 95:     protected void changed(object sender, GridViewPageEventArgs e)
Line 96:     {
Line 97:         GridView1.PageIndex = e.NewPageIndex;
Line 98:         //GridView1.DataBind();
Line 99:     }


Source File: c:\Users\Sartaj\Desktop\web\Websites\Asp_website_projectv1\AddInventory.aspx.cs    Line: 97

Stack Trace:

[ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: value]
   System.Web.UI.WebControls.GridView.set_PageIndex(Int32 value) +1318287
   AddInventory.changed(Object sender, GridViewPageEventArgs e) in c:\Users\Sartaj\Desktop\web\Websites\Asp_website_projectv1\AddInventory.aspx.cs:97
   System.Web.UI.WebControls.GridView.OnPageIndexChanging(GridViewPageEventArgs e) +133
   System.Web.UI.WebControls.GridView.HandlePage(Int32 newPage) +86
   System.Web.UI.WebControls.GridView.HandleEvent(EventArgs e, Boolean causesValidation, String validationGroup) +464
   System.Web.UI.WebControls.GridView.RaisePostBackEvent(String eventArgument) +207
   System.Web.UI.WebControls.GridView.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +175
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565


My gridview is->
<asp:GridView ID="GridView1" runat="server" EnableModelValidation="True" AutoGenerateColumns="true" 
        BackColor="#CCCCCC" BorderColor="Black" BorderStyle="None" BorderWidth="1px" 
        CellPadding="7" CellSpacing="5" AllowPaging="True" PageSize="1" OnPageIndexChanging="changed" >
                    <PagerSettings Mode="NextPrevious" />
                    <FooterStyle BackColor="#F7DFB5" ForeColor="#8C4510" />
                    <HeaderStyle BackColor="#999999" Font-Bold="True" ForeColor="White" />
                    <PagerStyle ForeColor="#0033CC" HorizontalAlign="Center" />
                    <RowStyle BackColor="Silver" ForeColor="White" />
                    <SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="White" />
                </asp:GridView>

**my backend code is->**
protected void addInventoryButton_Click(object sender, EventArgs e)
    {
        addInventoryAllSelectDataSource.InsertParameters[0].DefaultValue = imeiText.Text;
        addInventoryAllSelectDataSource.InsertParameters[1].DefaultValue = carrierDropDown.SelectedValue;
        addInventoryAllSelectDataSource.InsertParameters[2].DefaultValue = ((int)d1[modelDropDown.SelectedIndex][0]).ToString();
        addInventoryAllSelectDataSource.InsertParameters[3].DefaultValue = costPriceText.Text;
        addInventoryAllSelectDataSource.InsertParameters[4].DefaultValue = sellingPriceText.Text;
        addInventoryAllSelectDataSource.InsertParameters[5].DefaultValue = dateText.Text;
        addInventoryAllSelectDataSource.InsertParameters[6].DefaultValue = smartphoneRadioList.SelectedValue;
        addInventoryAllSelectDataSource.InsertParameters[7].DefaultValue = transferOrderNoText.Text;
        addInventoryAllSelectDataSource.InsertParameters[8].DefaultValue = Session["user"].ToString();
        addInventoryAllSelectDataSource.Insert();
       // gridList.Add(new AddImei(imeiText,carrierDropDown.SelectedValue,(((int)d1[modelDropDown.SelectedIndex][0]).ToString())
           // ,Convert.ToDouble(costPriceText.Text),Convert.ToDouble(sellingPriceText.Text),dateText.Text);
        //GridView1.DataSource = gridList;
        //GridView1.DataBind();
        //GridView1.DataSource = selectInventoryDataSource.Select(DataSourceSelectArguments.Empty);
        //GridView1.DataBind();
        addInventoryAllSelectDataSource.SelectCommand = "SELECT A.IMEI,A.CARRIER, F.MAKE, F.MODEL, A.COST_PRICE,A.SELLING_PRICE,A.DATE,A.SMARTPHONE,A.TRANSFER_ORDER_NO,A.USER_ID FROM AddInventory AS A FULL OUTER JOIN "+carrierDropDown.SelectedValue+" AS F ON A.CARRIER_ID_INVENTORY = F.CARRIER_ID WHERE (A.IMEI = '"+imeiText.Text+"')";
        d3  = (DataView)addInventoryAllSelectDataSource.Select(DataSourceSelectArguments.Empty);
        gridList.Add(new AddImei(d3[0][0].ToString(), d3[0][1].ToString(), d3[0][2].ToString(), d3[0][3].ToString(), Convert.ToDouble(d3[0][4]), Convert.ToDouble(d3[0][5]), Convert.ToDateTime(d3[0][6]).Date, Convert.ToBoolean(d3[0][7]), d3[0][8].ToString(), d3[0][9].ToString()));
        //AddImei ob1=new AddImei(d3[0][0].ToString(), d3[0][1].ToString(), d3[0][2].ToString(), d3[0][3].ToString(), Convert.ToDouble(d3[0][4]), Convert.ToDouble(d3[0][5]), Convert.ToDateTime(d3[0][6]).Date, Convert.ToBoolean(d3[0][7]), d3[0][8].ToString(), d3[0][9].ToString());
        GridView1.DataSource = gridList;
        GridView1.DataBind();
    }

問題は、次のページをクリックするとページが変更されないため、再びクリックしてページが変更されます。次のページに移動した後、前のページをクリックして、何も変更されていません。もう一度クリックしてから、上記の例外を取得します。私はこの問題を何時間も並べ替えたいと思っていましたが、ここで私が間違っていることを理解できません。

Answer 1

PageIndexChangedイベントの後、GridView1を埋める関数を呼び出す必要があります

 protected void changed(object sender, GridViewPageEventArgs e)
 {
     GridView1.PageIndex = e.NewPageIndex;
     this.fillGridView1();
 }