Question

iframe中具有asp：GridView和SQLDataSource的表（aspx站点）正在增长，该表在父站点中的事件上刷新。

我已经添加了通过向其添加ActionCommand“删除，更新，编辑”来编辑GridView的可能性。为此，我向SQLDataSource添加了UpdateCommand。

删除有效-更新无效。

问题是，我得到了System.ArgumentException：具有未经验证的PostBack或Callbackargument。当我将asp：CommandField更改为“ ButtonType” =“ Link”时，没有页面验证错误，但是当我将“ ButtonType”更改为“ Image”时，我得到了页面验证错误（请参见屏幕截图）。两个ButtonType-Selection都不更新数据。

我已经向其中添加了UpdateParamaters节，但是它没有任何效果-相同的错误。我已经在页面顶部添加了EnableEventValidation =“ false”-错误消失了（就像ButtonType = Link一样），但是不会执行任何更新。

    <asp:GridView DataKeyNames="id" CssClass="tableStyle" ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1" OnRowDataBound="GridView1_RowDataBound">
        <Columns>
            <asp:BoundField ReadOnly="true" DataField="BelDat" HeaderText="Created on" SortExpression="BelDat" DataFormatString="{0:yyyy-MM-dd}"  />
            <asp:BoundField ReadOnly="true" DataField="PersNr" HeaderText="Pers No." SortExpression="PersNr" />
            <asp:BoundField ReadOnly="true" DataField="lblPortfolio" HeaderText="Portfolio" SortExpression="lblPortfolio" />
            <asp:BoundField ReadOnly="true" DataField="lblProject" HeaderText="Project" SortExpression="lblProject" />
            <asp:BoundField ReadOnly="true" DataField="lblPSPElement" HeaderText="Element" SortExpression="lblPSPElement" />
            <asp:BoundField ReadOnly="true" DataField="PSPElement" HeaderText="CC/Contract/PSP Element" SortExpression="PSPElement" />
            <asp:BoundField DataField="Text50Stellen" HeaderText="Description" SortExpression="Text50Stellen" />
            <asp:BoundField ReadOnly="true" DataField="Menge" HeaderText="Hours" SortExpression="Menge" DataFormatString="{0:n1}" />
            <asp:CommandField ButtonType="Image" CancelImageUrl="~/Images/cancel.png" DeleteImageUrl="~/Images/trash.png" EditImageUrl="~/Images/edit.png" ShowDeleteButton="True" ShowEditButton="True" UpdateImageUrl="~/Images/save.png" />
        </Columns>
        <EmptyDataTemplate>
            (nothing has been logged in this month)
        </EmptyDataTemplate>
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" UpdateCommand="UPDATE timesheet SET Text50Stellen=@Text50Stellen WHERE id=@id" DeleteCommand="DELETE FROM timesheet WHERE id=@id" ConnectionString="<%$ ConnectionStrings:DP_TimeSheetConnectionString %>">
        <UpdateParameters>
              <asp:Parameter Name="Text50Stellen" Type="String" />
        </UpdateParameters>
    </asp:SqlDataSource>

这是我在Page_Load后面的代码部分中的代码：

public void refreshDataGrid()
{
    SqlDataSource1.ConnectionString = MyConfigurationManager.prdSqlServerString;
    SqlDataSource1.SelectCommand = @" 
            SELECT [id], 
                   [username], 
                   [BuDat], 
                   [BelDat], 
                   [PersNr], 
                   [SendKst], 
                   [Menge], 
                   [Lar], 
                   ISNULL([EmpfKst],'')+
                   ISNULL([EmpfAufn],'')+
                   ISNULL([EmpfPSPE],'') as PSPElement, 
                   [EmpfKundenauftrag], 
                   [Po], 
                   [EmpfNetzplan], 
                   [EmpfVorgang],
                   [Text50Stellen],
                   [lblPortfolio],
                   [lblProject],
                   [lblPSPElement]
            FROM   [timesheet] 
            WHERE  username='";

    SqlDataSource1.SelectCommand += new AuthenticationService().getUsername().Trim() + "' ";

    if (Request.QueryString["month"] != null && Request.QueryString["year"] != null)
    {
        SqlDataSource1.SelectCommand += " AND MONTH(BuDat)=" + Request.QueryString["month"] + " AND YEAR(BuDat)=" + Request.QueryString["year"] + " ";
        GridView1.Columns[GridView1.Columns.Count - 1].Visible = false;
    } 
    else
    {
        SqlDataSource1.SelectCommand += " AND MONTH(BuDat)=MONTH(GetDate()) AND YEAR(BuDat)=YEAR(GetDate()) ";
    }

    SqlDataSource1.SelectCommand += " ORDER BY id DESC ";

    SqlDataSource1.Select(DataSourceSelectArguments.Empty);
    GridView1.DataBind();
}

protected void Page_Load(object sender, EventArgs e)
{
    refreshDataGrid();
}

问题是，当我在刷新asp：DataGrid之前要求if（！IsPostBack）时，表未加载

[ArgumentException: Ungültiges Postback- oder Callbackargument. Die Ereignisvalidierung wird mithilfe von <pages enableEventValidation="true"/> in der Konfiguration oder mithilfe von <%@ Page EnableEventValidation="true" %> auf einer Seite aktiviert. Aus Sicherheitsgründen überprüft dieses Feature, dass Argumente für Postback- oder Callbackereignisse von dem Serversteuerelement ausgehen, von dem sie ursprünglich gerendert wurden. Wenn die Daten gültig sind und erwartet wurden, verwenden Sie die ClientScriptManager.RegisterForEventValidation-Methode, um die Postback- oder Callbackdaten für die Validierung zu registrieren.]
   System.Web.UI.ClientScriptManager.ValidateEvent(String uniqueId, String argument) +9756058
   System.Web.UI.Control.ValidateEvent(String uniqueID, String eventArgument) +108
   System.Web.UI.WebControls.ImageButton.RaisePostBackEvent(String eventArgument) +29
   System.Web.UI.WebControls.ImageButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +12
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +15
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +35
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1639

S.th。我发现：当我将asp：CommandField更改为以下代码时-PageValidation错误消失了，但更新不起作用：

            <asp:CommandField ShowDeleteButton="True" ShowEditButton="True" 
                EditText="<img src='Images/edit.png' style='border-width:0' />" 
                DeleteText="<img src='Images/trash.png' style='border-width:0' />"
                CancelText="<img src='Images/cancel.png' style='border-width:0' />"
                UpdateText="<img src='Images/save.png' style='border-width:0' />"
                />

Answer 1

我不确定现在有什么不同，但现在可以与Tetsuya Yamamotos的提示一起使用。

if（！IsPostBack）GridView1.DataBind（）;

onmessage = function(event){

    var v1 = event.data.key1 ;
    var v2 = event.data.key2;
}

在ASP：GridView中使用BoundFields更新ASP：SQLDataSource导致System.ArgumentException PageValidation错误

1 个答案: