如何在datagrid上更新绑定的表?(winform)

datagrid已经和数据库绑定了,我想在datagrid上直接改数据,然后点击button去更新数据库.搜了几个帖子,感觉很模糊.高人指点

解决方案 »

  1.   

    改吧改吧就行。仔细看看HTML文件里的东东。
    using System;
    using System.Collections;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Web;
    using System.Web.SessionState;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Web.UI.HtmlControls;
    using System.Data.SqlClient;namespace WebApplication1
    { /// <summary>
    /// WebForm3 的摘要说明。
    /// </summary>
    public class WebForm3 : System.Web.UI.Page
    {
    //make first sql 
    String sql = "";
    protected System.Web.UI.WebControls.DataGrid People;
    protected System.Web.UI.WebControls.LinkButton LinkButton1;
    String strCnn = @"user id=google100;password=google100;data source=KOENEMY\COOLFISH;initial catalog=google100";
    //create a datasource function
    public ICollection CreateDataSource () 
    {
    SqlConnection conn = new SqlConnection(strCnn); SqlDataAdapter db_sqladaptor = new SqlDataAdapter(sql,conn); DataSet ds = new DataSet();
    db_sqladaptor.Fill(ds,"MyDataResult"); DataView myView = ds.Tables["MyDataResult"].DefaultView;
    return myView;
    }
    //do page load public void Page_Load(Object sender, EventArgs e) 
    {
    strCnn = @"user id=google100;password=google100;data source=KOENEMY\COOLFISH;initial catalog=google100"; if (!IsPostBack) 
    {
    sql = "Select * FROM _SohuYPFirstCatalogue";
    People.DataSource = CreateDataSource();
    People.DataBind(); } } public void Page_Grid(Object sender, DataGridPageChangedEventArgs e) 
    {
    sql = "Select * FROM _SohuYPFirstCatalogue";
    // Set CurrentPageIndex to the page the user clicked.
    People.CurrentPageIndex = e.NewPageIndex; // Rebind the data. 
    People.DataSource = CreateDataSource();
    People.DataBind(); } public void People_Edit(Object sender, DataGridCommandEventArgs e) 
    {
    sql = "Select * FROM _SohuYPFirstCatalogue"; People.EditItemIndex = e.Item.ItemIndex;
    People.DataSource = CreateDataSource();
    People.DataBind(); } public void People_Cancel(Object sender, DataGridCommandEventArgs e) 
    {
    sql = "Select * FROM _SohuYPFirstCatalogue";
    People.EditItemIndex = -1;
    People.DataSource = CreateDataSource();
    People.DataBind();
    } public void People_Update(Object sender, DataGridCommandEventArgs e) 
    {
    string FirstName = ((TextBox)e.Item.Cells[1].Controls[1]).Text;
    string LastName = ((TextBox)e.Item.Cells[2].Controls[1]).Text; SqlConnection connUpdate = new SqlConnection(strCnn);
    connUpdate.Open();
    String sql_edit = "UPDATE _SohuYPFirstCatalogue " +
    "SET Name = '" + FirstName.Replace("'","''")+ "'," +
    "Url = '" + LastName.Replace("'","''")+ "'" +
    " WHERE SohuYPFirstCatalogueId = " + e.Item.Cells[0].Text; SqlCommand sqlCommandUpdate = new SqlCommand(sql_edit,connUpdate);
    sqlCommandUpdate.ExecuteNonQuery();
    connUpdate.Close(); sql =  "Select * FROM _SohuYPFirstCatalogue";
    People.EditItemIndex = -1;
    People.DataSource = CreateDataSource();
    People.DataBind();
    } public void People_Delete(Object sender, DataGridCommandEventArgs e) 
    { SqlConnection connDel = new SqlConnection(strCnn);
    connDel.Open();
    String sql_Del = "DELETE FROM _SohuYPFirstCatalogue " +
    " WHERE SohuYPFirstCatalogueId = " + e.Item.Cells[0].Text; SqlCommand sqlCommandDel = new SqlCommand(sql_Del,connDel);
    sqlCommandDel.ExecuteNonQuery();
    connDel.Close(); sql =  "Select * FROM _SohuYPFirstCatalogue";
    People.EditItemIndex = -1;
    People.DataSource = CreateDataSource();
    People.DataBind(); }
    #region Web 窗体设计器生成的代码
    override protected void OnInit(EventArgs e)
    {
    //
    // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
    //
    InitializeComponent();
    base.OnInit(e);
    }

    /// <summary>
    /// 设计器支持所需的方法 - 不要使用代码编辑器修改
    /// 此方法的内容。
    /// </summary>
    private void InitializeComponent()
    {    
    this.Load += new System.EventHandler(this.Page_Load); }
    #endregion
    }
    }<%@ Page language="c#" Codebehind="WebForm3.aspx.cs" AutoEventWireup="false" Inherits="WebApplication1.WebForm3" %>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
    <HTML>
    <HEAD>
    <title>WebForm3</title>
    <meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR">
    <meta content="C#" name="CODE_LANGUAGE">
    <meta content="JavaScript" name="vs_defaultClientScript">
    <meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
    </HEAD>
    <body MS_POSITIONING="GridLayout">
    <form id="Form1" runat="server">
    <asp:datagrid id="People" runat="server" OnDeleteCommand="People_Delete" OnUpdateCommand="People_Update"
    OnCancelCommand="People_Cancel" OnEditCommand="People_Edit" Visible="true" ShowHeader="true"
    AutoGenerateColumns="false" CellPadding="3" BorderWidth="1" OnPageIndexChanged="Page_Grid"
    AllowPaging="true" PageSize="5" Width="640" BorderColor="green">
    <EditItemStyle Font-Size="7pt" Font-Names="Arial" HorizontalAlign="Center" ForeColor="Black" BackColor="Ivory"></EditItemStyle>
    <ItemStyle Font-Size="8pt" Font-Names="Arial" HorizontalAlign="Center" ForeColor="Black" BackColor="Ivory"></ItemStyle>
    <HeaderStyle Font-Size="9pt" Font-Names="Arial" Font-Bold="True" HorizontalAlign="Center" ForeColor="White"
    BorderColor="White" BackColor="Black"></HeaderStyle>
    <Columns>
    <asp:BoundColumn DataField="SohuYPFirstCatalogueId" ReadOnly="True" HeaderText="SohuYPFirstCatalogueId"></asp:BoundColumn>
    <asp:TemplateColumn>
    <HeaderTemplate>
    <b>Name</b>
    </HeaderTemplate>
    <ItemTemplate>
    <asp:Label Width="200" Text='<%# DataBinder.Eval(Container.DataItem, "Name").ToString().Trim() %>' runat="server" ID="Label1" NAME="Label1"/>
    </ItemTemplate>
    <EditItemTemplate>
    <asp:TextBox id="Name" Text='<%# DataBinder.Eval(Container.DataItem, "Name").ToString().Trim() %>' runat="server" Width="100%"/>
    </EditItemTemplate>
    </asp:TemplateColumn>
    <asp:TemplateColumn>
    <HeaderTemplate>
    <b>Url</b>
    </HeaderTemplate>
    <ItemTemplate>
    <asp:Label Width="300" Text='<%# DataBinder.Eval(Container.DataItem, "Url").ToString().Trim() %>' runat="server" ID="Label2" NAME="Label2"/>
    </ItemTemplate>
    <EditItemTemplate>
    <asp:TextBox id="Url" Text='<%# DataBinder.Eval(Container.DataItem, "Url").ToString().Trim() %>' runat="server" Width="100%"/>
    </EditItemTemplate>
    </asp:TemplateColumn>
    <asp:EditCommandColumn ButtonType="LinkButton" UpdateText="Update" CancelText="Cancel" EditText="Edit"></asp:EditCommandColumn>
    <asp:ButtonColumn Text="Delete" CommandName="Delete"></asp:ButtonColumn>
    </Columns>
    <PagerStyle Mode="NumericPages"></PagerStyle>
    </asp:datagrid><asp:linkbutton id="LinkButton1" style="Z-INDEX: 101; LEFT: 360px; POSITION: absolute; TOP: 272px"
    runat="server">分页</asp:linkbutton>
    </form>
    </body>
    </HTML>
      

  2.   

    用CurrencyManager
    具体代码我手上没有 
    你去查一下sdk
      

  3.   

    昏 web和winform不是很一样我感觉