Question

我知道这是非常基本的，几乎是基本的，很难找到相关的例子。

我有一个从数据库查询的gridview表，并且使用VS17我正在尝试添加一个编辑列。我使用设计器布局生成了以下代码，但是当我单击编辑按钮时，该行变为可编辑但更新语句不会更新数据库。单击更新后，页面将刷新，表格将消失。

我哪里错了？另外，我知道我的前任在列名中使用的拼写错误。

这是cs文件：

<%@ Control Language="C#" AutoEventWireup="true" Inherits="CMSWebParts_Custom_Intranet_Data_inventorycountsheetcategorydatagridedit" CodeFile="~/CMSWebParts/Custom/Intranet/Data/inventorycountsheetcategorydatagridedit.ascx.cs" %>
<br />

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="PartCatagoriesID" DataMember="DefaultView" DataSourceID="SqlDataSource1" EnableModelValidation="False">
    <Columns>
        <asp:CommandField ShowEditButton="True" />
        <asp:BoundField DataField="CategoryName" HeaderText="CategoryName" SortExpression="CategoryName" />
        <asp:BoundField DataField="CategroyDescription" HeaderText="CategroyDescription" SortExpression="CategroyDescription" />
        <asp:BoundField DataField="PartCatagoriesID" HeaderText="PartCatagoriesID" InsertVisible="False" ReadOnly="True" SortExpression="PartCatagoriesID" />
    </Columns>
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>" DeleteCommand="DELETE FROM [Form_IntranetSharpTransit_PartCategories] WHERE [PartCatagoriesID] = ?" EnableViewState="False" InsertCommand="INSERT INTO [Form_IntranetSharpTransit_PartCategories] ([CategoryName], [CategroyDescription], [PartCatagoriesID]) VALUES (?, ?, ?)" ProviderName="<%$ ConnectionStrings:ConnectionString.ProviderName %>" SelectCommand="SELECT [CategoryName], [CategroyDescription], [PartCatagoriesID] FROM [Form_IntranetSharpTransit_PartCategories]" UpdateCommand="UPDATE [Form_IntranetSharpTransit_PartCategories] SET [CategoryName] = ?, [CategroyDescription] = ? WHERE [PartCatagoriesID] = ?">
    <DeleteParameters>
        <asp:Parameter Name="PartCatagoriesID" Type="Int32" />
    </DeleteParameters>
    <InsertParameters>
        <asp:Parameter Name="CategoryName" Type="String" />
        <asp:Parameter Name="CategroyDescription" Type="String" />
        <asp:Parameter Name="PartCatagoriesID" Type="Int32" />
    </InsertParameters>
    <UpdateParameters>
        <asp:Parameter Name="CategoryName" Type="String" />
        <asp:Parameter Name="CategroyDescription" Type="String" />
        <asp:Parameter Name="PartCatagoriesID" Type="Int32" />
    </UpdateParameters>
</asp:SqlDataSource>

这是ascx文件：

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

using CMS.PortalControls;
using CMS.GlobalHelper;
using CMS.TreeEngine;
using CMS.CMSHelper;
using CMS.ExtendedControls;

public partial class CMSWebParts_Custom_Intranet_Data_inventorycountsheetcategorydatagridedit: CMSAbstractWebPart
{

    /// <summary>
    /// Enables or disables resolving of inline controls.
    /// </summary>
    public bool ResolveDynamicControls
    {
        get
        {
            return ValidationHelper.GetBoolean(this.GetValue("ResolveDynamicControls"), true);
        }
        set
        {
            this.SetValue("ResolveDynamicControls", value);
        }
    }


    /// <summary>
    /// Enables or disables HTML encoding of text.
    /// </summary>
    public bool EncodeText
    {
        get
        {
            return ValidationHelper.GetBoolean(this.GetValue("EncodeText"), false);
        }
        set
        {
            this.SetValue("EncodeText", value);
        }
    }


    /// <summary>
    /// Content loaded event handler.
    /// </summary>
    public override void OnContentLoaded()
    {
        base.OnContentLoaded();
        SetupControl();
    }


    /// <summary>
    /// Initializes the control properties.
    /// </summary>
    protected void SetupControl()
    {
        if (this.StopProcessing)
        {
            // Do not process
        }
        else
        {

        }
    }


    /// <summary>
    /// Reloads the control data.
    /// </summary>
    public override void ReloadData()
    {
        base.ReloadData();

        SetupControl();
    }



}

非常基本，我知道，但这不是我的强项，我似乎无法找到适用的示例或文档。任何帮助将不胜感激！

Answer 1

您可能需要将以下属性添加到网格视图中，然后在后面的代码中实现它们。如果您使用VS17，它将帮助您做到这一点。在网格视图中，首先输入OnRowEditing，OnRowUpdating。这应该让你开始。您可能也想要实现OnRowCancelingEdit方法。

GridView上的“编辑”按钮未使用输入框数据

1 个答案: