Repeater控件实现编辑、更新、删除操作

下面给出示例 vs.net2008(C#)下编写。来自 admin10000.com

后台.cs代码

protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
         BindGrid();
    }

}

private void BindGrid()
{          
     string strSQL = "SELECT * FROM [User]";
     OleDbConnection objConnection = new OleDbConnection(GetStrConnection());
     objConnection.Open();
     OleDbCommand objCommand = new OleDbCommand(strSQL, objConnection);
     OleDbDataReader reader = objCommand.ExecuteReader(CommandBehavior.CloseConnection);
     rptUser.DataSource = reader;
     rptUser.DataBind();
}

protected void rptUser_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
    if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
    {
         System.Data.Common.DbDataRecord record = (System.Data.Common.DbDataRecord)e.Item.DataItem;
         int userId = int.Parse(record["UserId"].ToString());
         if (userId != id)
         {
             ((Panel)e.Item.FindControl("plItem")).Visible = true;
             ((Panel)e.Item.FindControl("plEdit")).Visible = false;
         }
         else
         {
             ((Panel)e.Item.FindControl("plItem")).Visible = false;
             ((Panel)e.Item.FindControl("plEdit")).Visible = true;
         }       
    }
}

protected void rptUser_ItemCommand(object source, RepeaterCommandEventArgs e)
{
     if (e.CommandName == "Edit")
     {
         id = int.Parse(e.CommandArgument.ToString());
     }
     else if (e.CommandName == "Cancel")
     {
         id = -1;
     }
     else if (e.CommandName == "Update")
     {
         string name = ((TextBox)this.rptUser.Items[e.Item.ItemIndex].FindControl("txtName")).Text.Trim();
         string email = ((TextBox)this.rptUser.Items[e.Item.ItemIndex].FindControl("txtEmail")).Text.Trim();
         string qq = ((TextBox)this.rptUser.Items[e.Item.ItemIndex].FindControl("txtQQ")).Text.Trim();
         string strSQL = "UPDATE [User] SET Name=@Name,Email=@Email,QQ=@QQ WHERE UserId=@UserId";
         OleDbConnection objConnection = new OleDbConnection(GetStrConnection());
         OleDbCommand objCommand = new OleDbCommand(strSQL, objConnection);
         objCommand.Parameters.Add("@Name", OleDbType.VarWChar);
         objCommand.Parameters["@Name"].Value = name;
         objCommand.Parameters.Add("@Email", OleDbType.VarWChar);
         objCommand.Parameters["@Email"].Value = email;
         objCommand.Parameters.Add("@QQ", OleDbType.VarWChar);
         objCommand.Parameters["@QQ"].Value = qq;
         objCommand.Parameters.Add("@UserId", OleDbType.Integer);
         objCommand.Parameters["@UserId"].Value = int.Parse(e.CommandArgument.ToString());
         objConnection.Open();
         objCommand.ExecuteNonQuery();
         objConnection.Close();
     }
     else if (e.CommandName == "Delete")
     {
         string strSQL = "DELETE * FROM [User] WHERE UserId=@UserId";
         OleDbConnection objConnection = new OleDbConnection(GetStrConnection());
         OleDbCommand objCommand = new OleDbCommand(strSQL, objConnection);
         objCommand.Parameters.Add("@UserId", OleDbType.Integer);
         objCommand.Parameters["@UserId"].Value = int.Parse(e.CommandArgument.ToString());
         objConnection.Open();
         objCommand.ExecuteNonQuery();
         objConnection.Close();
     }

     BindGrid();
}

private string GetStrConnection()
{
    return "Provider=Microsoft.Jet.OleDb.4.0;data source=" + Server.MapPath("~/Database/test.mdb");
}

前台.aspx代码

<form id="form1" runat="server">
    <asp:Repeater ID="rptUser" runat="server" onitemcommand="rptUser_ItemCommand" 
        onitemdatabound="rptUser_ItemDataBound">
        <HeaderTemplate>
            <table width="960" align="center" cellpadding="3" cellspacing="1" style="background-color: #ccc;">
                <thead style="background-color: #eee;">
                    <tr>
                        <th width="10%">
                            用户ID
                        </th>
                        <th>
                            用户名
                        </th>
                        <th width="22%">
                            邮件
                        </th>
                        <th width="20%">
                            QQ
                        </th>
                        <th width="15%">
                            注册时间
                        </th>
                        <th width="12%">
                            操作
                        </th>
                    </tr>
                </thead>
                <tbody style="background-color: #fff;">
        </HeaderTemplate>
        <ItemTemplate>
            <asp:Panel ID="plItem" runat="server">
                <tr style="text-align: center;">
                    <td>
                        <%# DataBinder.Eval(Container.DataItem, "UserId")%>
                    </td>
                    <td>
                        <%# DataBinder.Eval(Container.DataItem, "Name")%>
                    </td>
                    <td>
                        <%# DataBinder.Eval(Container.DataItem, "Email")%>
                    </td>
                    <td>
                        <%# DataBinder.Eval(Container.DataItem, "QQ")%>
                    </td>
                    <td>
                        <%# DataBinder.Eval(Container.DataItem, "AddTime","{0:yyyy-MM-dd}")%>
                    </td>
                    <td> <asp:LinkButton runat="server" ID="lbtEdit" CommandArgument='<%# DataBinder.Eval(Container.DataItem, "UserId")%>'
                     CommandName="Edit" Text="编辑"></asp:LinkButton>&nbsp;&nbsp;
                    <asp:LinkButton runat="server" ID="lbtDelete" CommandArgument='<%# DataBinder.Eval(Container.DataItem, "UserId")%>'
                     CommandName="Delete" Text="删除" OnClientClick="return confirm('确定要删除？')"></asp:LinkButton>
                    </td>
                </tr>
            </asp:Panel>
            <asp:Panel ID="plEdit" runat="server">
                <tr style="text-align: center;">
                    <td>
                        <%# DataBinder.Eval(Container.DataItem, "UserId")%>
                    </td>
                    <td>
                        <asp:TextBox ID="txtName" Text='<%# DataBinder.Eval(Container.DataItem,"Name") %>'
                            runat="server"></asp:TextBox>
                    </td>
                    <td>
                        <asp:TextBox ID="txtEmail" Text='<%# DataBinder.Eval(Container.DataItem,"Email") %>'
                            runat="server"></asp:TextBox>
                    </td>
                    <td>
                        <asp:TextBox ID="txtQQ" Text='<%# DataBinder.Eval(Container.DataItem,"QQ") %>' runat="server"></asp:TextBox>
                    </td>
                    <td>
                        <%# DataBinder.Eval(Container.DataItem, "AddTime","{0:yyyy-MM-dd}")%>
                    </td>
                    <td>
                      <asp:LinkButton runat="server" ID="lbtUpdate" CommandArgument='<%# DataBinder.Eval(Container.DataItem, "UserId")%>'
                     CommandName="Update" Text="更新"></asp:LinkButton>&nbsp;&nbsp;
                    <asp:LinkButton runat="server" ID="lbtCancel" CommandArgument='<%# DataBinder.Eval(Container.DataItem, "UserId")%>'
                     CommandName="Cancel" Text="取消"></asp:LinkButton>
                    </td>
                </tr>
            </asp:Panel>
        </ItemTemplate>
        <FooterTemplate>
            </tbody></table>
        </FooterTemplate>
    </asp:Repeater>
</form>

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