Question

我使用GridView来显示要由用户验证的错误信息。然后，为用户提供可填写字段（datepicker，dropdownlist，textbox）以修复错误。这些都在GridView之外。

之后，他们有一个提交按钮，用于将更改保存到SQL日志中。我遇到的问题是，因为我正在传递object sender, GridViewRowEventsArg e，按钮无法识别GridView而我收到错误：

No overload for 'btnSaveMemberErrorEdit_ButtonClicked' matches delegate 'System.EventHandler'

我正在使用带有c＃代码的asp.net。示例代码为：

ASP：

    <div id="actionItemAccordion">
<h3>Action Items</h3>
<asp:Panel runat="server">
    <asp:GridView runat="server" ID="gridActionItems" DataKeyNames="ErrorKey"
        AutoGenerateColumns="false" EmptyDataText="No Action Items Were Found." ShowHeader="true"
        ClientIDMode="Static" Width="100%">
        <Columns>
            <asp:BoundField HeaderText="Action Item" DataField="ActionItem" />
            <asp:BoundField HeaderText="Month" DataField="Month" />
            <asp:BoundField HeaderText="Data" DataField="DCode" />
            <asp:BoundField HeaderText="Data2" DataField="D2Code" />
            <asp:TemplateField>
                <ItemTemplate>
                    <asp:RadioButtonList runat="server" ID="rbWinner" AutoPostBack="true" Font-Size="Smaller" >
                        <asp:ListItem Text="D1 Correct" Enabled="true" Value="D1" />
                        <asp:ListItem Text="D2 Correct" Enabled="true" Value="D2" />
                    </asp:RadioButtonList>
                </ItemTemplate>
            </asp:TemplateField>
          </Columns>
    </asp:GridView>
    <asp:Label runat="server" BorderWidth="2px" Width="850px"></asp:Label>
    <div>
        <asp:Label runat="server" Text="Edit Any Necessary Changes" Style="text-align: center"
            Font-Size="Medium" Visible="true" Font-Bold="true" Width="100%" />
        <br />
        <br />
    </div>
    <div>
        <asp:Label runat="server" Text="Effective Date: " Style="text-align: right"
            Font-Size="Small" Visible="true" Width="200px" />
        <asp:TextBox runat="server" ID="txtEffectiveDate" Text="" Style="text-align: left"
            ClientIDMode="Static" Font-Size="13px" Columns="15" Height="15" Width="15%" />
        <asp:Label runat="server" Text="Termination Date: " Style="text-align: right"
            Font-Size="Small" Visible="true" Width="200px" />
        <asp:TextBox runat="server" ID="txtTerminationDate" Text="" Style="text-align: left"
            ClientIDMode="Static" Font-Size="13px" Columns="15" Height="15" Width="15%" />
        <br />
        <br />
    </div>
    <div>
        <asp:Label runat="server" Text="New/Corrected Name: " Style="text-align: right"
            Font-Size="Small" Visible="true" Width="200px" />
        <asp:DropDownList runat="server" ID="ddlNewCode" AutoPostBack="false" AppendDataBoundItems="true"
            Style="text-align: left" Width="220" BackColor="AliceBlue" ClientIDMode="Static"
            DataTextField="Code" DataValueField="CodeKey">
        </asp:DropDownList>
        <br />
        <br />
        <asp:Label runat="server" BorderWidth="1px" Width="850px"></asp:Label>
        <br />
    </div>
    <div>
        <asp:Label runat="server" Text="Notes: " Style="text-align: right; vertical-align: middle"
            Font-Size="Small" Visible="true" Width="200px" />
        <asp:TextBox runat="server" ID="txtNotes" Text="" Style="text-align: left" ClientIDMode="Static"
            Wrap="true" TextMode="MultiLine" Font-Size="10px" Columns="100" Height="100"
            Width="50%" />
    </div>
    <div>
        <asp:Button runat="server" ID="btnSaveErrorEdit" Text="Save Changes" OnClick="btnSaveErrorEdit_ButtonClicked"
            Height="30px" Enabled="true" Width="95px" Style="margin-left: 330px; margin-top: 70px;
            margin-bottom: 25px; padding: 0px; border-radius: 5px;" />
        <asp:Button runat="server" ID="btnCancelEdit" Text="Cancel" OnClientClick="return CancelEdit();"
            Enabled="true" Height="30px" Width="70px" Style="margin-right: 330px; margin-top: 70px;
            margin-bottom: 25px; padding: 0px; border-radius: 5px;" />
    </div>
</asp:Panel>

代码背后：

    protected void btnSaveErrorEdit_ButtonClicked(object sender, GridViewRowEventArgs e)
    {
        int hiddenErrorKey = Convert.ToInt32(e.Row.Cells[5].Text);

        this.assignCorrect = e.Row.Cells[4].Text;           

        SqlCommand command = new SqlCommand("some_storedProc");
        command.CommandType = CommandType.StoredProcedure;

        command.Parameters.Add("@ErrorKey", SqlDbType.Int).Value = hiddenErrorKey;
        command.Parameters.Add("@EffectiveDate", SqlDbType.DateTime).Value = this.txtEffectiveDate;
        command.Parameters.Add("@TerminationDate", SqlDbType.DateTime).Value = this.txtTerminationDate;
        command.Parameters.Add("@Notes", SqlDbType.VarChar, -1).Value = this.txtNotes;
        command.Parameters.Add("@NameOfInputUser", SqlDbType.VarChar, 50).Value = this.lblInputUserName;
        command.Parameters.Add("@Code", SqlDbType.VarChar, 1).Value = this.assignWinner;
        Utilities.Exec_Qry(this.Application["some_connection"].ToString(), command);   
    }

Answer 1

您需要更改函数以获取asp：button

的参数

(object sender, EventArgs e)

然后你可以使用

在后面的代码中获取GridView

var button = sender as Button;
var view = button.FindControl("gridActionItems") as GridView;

然后您可以根据需要访问元素。

在asp.net中使用GridView但在GridView外使用提交按钮

1 个答案: