ASP GridView和TemplateField绑定有问题吗？

Question

我是ASP的新手，但是GridView 99％完美，但是当我更新IncomeAccountDropDownList（TemplateField）中的一行时，它也会更改GridView中的所有后续行。当我在更新后执行Debug.Writeline“ estimateClassesDistinct”时，它是正确的，而不是GridView中显示的内容。我提供了一些图片以帮助解释问题。

ASP代码：

<asp:ObjectDataSource ID="GridViewDataSource" runat="server" 
            OnSelecting="ObjectDataSource1_Selecting" 
            SelectMethod="GetDistinctEstimateClasses" 
            TypeName="OAuth2_Dotnet_UsingSDK.Pages.EstimateItemsToQuickBooks" 
            DataObjectTypeName="OAuth2_Dotnet_UsingSDK.EstimateClass" 
            UpdateMethod="UpdateDistinctEstimateClasses">

            <SelectParameters>
                <asp:ControlParameter ControlID="JobListDropDownList1" DefaultValue="NULL" Name="jobID" PropertyName="SelectedValue" Type="String" />
            </SelectParameters>

        </asp:ObjectDataSource>

<asp:ObjectDataSource ID="IncomeAccountDataSource1" runat="server" SelectMethod="GetIncomeAccounts" TypeName="OAuth2_Dotnet_UsingSDK.DatabaseHelpers">
        </asp:ObjectDataSource>


    <div style="margin-bottom: 10px">
        <label>New Categories Found. Supply default information to QuickBooks</label>

        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="GridViewDataSource"
            CellPadding="3" CellSpacing="5" AllowPaging="True" OnSelectedIndexChanged="GridView1_SelectedIndexChanged">
            <Columns>
                <asp:CommandField ShowEditButton="True" />

                <asp:BoundField DataField="FullyQualifiedName" HeaderText="Category:SubCategory" SortExpression="FullyQualifiedName"
                    ReadOnly="true">
                    <HeaderStyle Width="200px"></HeaderStyle>
                    <ItemStyle Width="200px"></ItemStyle>
                </asp:BoundField>

                <asp:BoundField DataField="Description" ReadOnly="true" HeaderText="Description" SortExpression="Description" />

                <asp:TemplateField HeaderText="Income Account">
                    <EditItemTemplate>
                        <asp:DropDownList ID="IncomeAccountDropDownList" runat="server" CssClass="DropDownList" AutoPostBack="True" 
                            DataSourceID="IncomeAccountDataSource1" DataTextField="Text" DataValueField="Value"
                            OnSelectedIndexChanged="IncomeAccountDropDownList_SelectedIndexChanged" 
                            SelectedText ='<%# Eval("IncomeAccount") %>' />
                    </EditItemTemplate>
                    <ItemTemplate>
                        <asp:FormView ID="formview1" runat="server" DataSourceID="GridViewDataSource">
                            <ItemTemplate>
                                <asp:Label ID="label1" runat="server" Text='<%# Eval("IncomeAccount") %>' />
                            </ItemTemplate>
                        </asp:FormView>
                    </ItemTemplate>
                </asp:TemplateField>

            </Columns>
        </asp:GridView>

C＃：

public static void UpdateDistinctEstimateClasses(EstimateClass estimateClass)
    {
        foreach (var item in estimateClassesDistinct)
        {
            if (item.FullyQualifiedName == estimateClass.FullyQualifiedName)
            {
                item.IncomeAccount = IncomeAccountId;
                break;
            }
        }
    }

public static List<EstimateClass> GetDistinctListOfJobEstimates(List<EstimateClass> estimateClasses)
    {
        List<EstimateClass> distinctEstimateClass = new List<EstimateClass>();

        var distinctEstimateSubCategories = estimateClasses
                        .Select(m => new { m.FullyQualifiedName, m.Description })
                        .Distinct()
                        .OrderBy(o => o.FullyQualifiedName);

        foreach (var item in distinctEstimateSubCategories)
        {
            distinctEstimateClass.Add(new EstimateClass
            {
                FullyQualifiedName = item.FullyQualifiedName,
                Description = item.Description,
                IncomeAccount = "Select Income Account22",
                ExpenseAccount = null,
            });
        }

        return distinctEstimateClass;
    }

estimateClassesDistinct的Debug.WriteLine：

APP：GDRS 85

APP：RG选择收入帐户

DMO：BARR选择收入帐户

DMO：DTRUCK选择收入帐户

FNC：SHOE选择收入帐户