怎样让继承的 DataSet 显示出来。

Question

但是当我 将它 绑定到 DataGrid 时 没有任何数据显示出来啊。

Answer 1

全部代码：using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;namespace WindowsApplication1
{
/// <summary>
/// Form2 的摘要说明。
/// </summary>
public class Form2 : System.Windows.Forms.Form
{
private System.Windows.Forms.Label lUserName;
private System.Windows.Forms.Label lUserID;
private System.Windows.Forms.Label lUserMail;
private System.Windows.Forms.TextBox userName;
private System.Windows.Forms.TextBox userID;
private System.Windows.Forms.TextBox userMail;
private System.Windows.Forms.Button goPrior;
private System.Windows.Forms.Button goNext;
private System.Windows.Forms.Button goFirst;
private System.Windows.Forms.Button goLast;
private WindowsApplication1.DataSet1 dataSet11;
private BindingManagerBase myBind;
private System.Windows.Forms.Label infor;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null; public Form2()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
myBind = this.BindingContext[dataSet11,"userTable"];
//dataSet11.
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
} /// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows Form Designer generated code
/// <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.lUserName = new System.Windows.Forms.Label();
this.lUserID = new System.Windows.Forms.Label();
this.lUserMail = new System.Windows.Forms.Label();
this.userName = new System.Windows.Forms.TextBox();
this.dataSet11 = new WindowsApplication1.DataSet1();
this.userID = new System.Windows.Forms.TextBox();
this.userMail = new System.Windows.Forms.TextBox();
this.goPrior = new System.Windows.Forms.Button();
this.goNext = new System.Windows.Forms.Button();
this.goFirst = new System.Windows.Forms.Button();
this.goLast = new System.Windows.Forms.Button();
this.infor = new System.Windows.Forms.Label();
((System.ComponentModel.ISupportInitialize)(this.dataSet11)).BeginInit();
this.SuspendLayout();
// 
// lUserName
// 
this.lUserName.Location = new System.Drawing.Point(16, 32);
this.lUserName.Name = "lUserName";
this.lUserName.Size = new System.Drawing.Size(56, 16);
this.lUserName.TabIndex = 0;
this.lUserName.Text = "userName";
// 
// lUserID
// 
this.lUserID.Location = new System.Drawing.Point(16, 64);
this.lUserID.Name = "lUserID";
this.lUserID.Size = new System.Drawing.Size(48, 16);
this.lUserID.TabIndex = 1;
this.lUserID.Text = "userID";
// 
// lUserMail
// 
this.lUserMail.Location = new System.Drawing.Point(16, 96);
this.lUserMail.Name = "lUserMail";
this.lUserMail.Size = new System.Drawing.Size(80, 16);
this.lUserMail.TabIndex = 2;
this.lUserMail.Text = "userMail";
this.lUserMail.Click += new System.EventHandler(this.userMail_Click);
// 
// userName
// 
this.userName.DataBindings.Add(new System.Windows.Forms.Binding("Text", this.dataSet11, "userTable.userName"));
this.userName.Location = new System.Drawing.Point(112, 32);
this.userName.Name = "userName";
this.userName.TabIndex = 3;
this.userName.Text = "";
// 
// dataSet11
// 
this.dataSet11.DataSetName = "DataSet1";
this.dataSet11.Locale = new System.Globalization.CultureInfo("zh-CN");
this.dataSet11.Namespace = "http://www.tempuri.org/DataSet1.xsd";
// 
// userID
// 
this.userID.DataBindings.Add(new System.Windows.Forms.Binding("Text", this.dataSet11, "userTable.userId"));
this.userID.Location = new System.Drawing.Point(112, 64);
this.userID.Name = "userID";
this.userID.TabIndex = 4;
this.userID.Text = "";
// 
// userMail
// 
this.userMail.DataBindings.Add(new System.Windows.Forms.Binding("Text", this.dataSet11, "userTable.userMail"));
this.userMail.Location = new System.Drawing.Point(112, 96);
this.userMail.Name = "userMail";
this.userMail.TabIndex = 5;
this.userMail.Text = "";
// 
// goPrior
// 
this.goPrior.Location = new System.Drawing.Point(74, 136);
this.goPrior.Name = "goPrior";
this.goPrior.Size = new System.Drawing.Size(60, 23);
this.goPrior.TabIndex = 6;
this.goPrior.Text = "上一条";
// 
// goNext
// 
this.goNext.Location = new System.Drawing.Point(134, 136);
this.goNext.Name = "goNext";
this.goNext.Size = new System.Drawing.Size(60, 23);
this.goNext.TabIndex = 7;
this.goNext.Text = "下一条";
this.goNext.Click += new System.EventHandler(this.goNext_Click);
// 
// goFirst
// 
this.goFirst.Location = new System.Drawing.Point(14, 136);
this.goFirst.Name = "goFirst";
this.goFirst.Size = new System.Drawing.Size(60, 23);
this.goFirst.TabIndex = 8;
this.goFirst.Text = "首记录";
// 
// goLast
// 
this.goLast.Location = new System.Drawing.Point(194, 136);
this.goLast.Name = "goLast";
this.goLast.Size = new System.Drawing.Size(60, 23);
this.goLast.TabIndex = 9;
this.goLast.Text = "尾记录";
// 
// infor
// 
this.infor.Location = new System.Drawing.Point(16, 8);
this.infor.Name = "infor";
this.infor.Size = new System.Drawing.Size(160, 16);
this.infor.TabIndex = 10;
this.infor.Text = "Loading...";
// 
// Form2
// 
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(264, 173);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
  this.infor,
  this.goLast,
  this.goFirst,
  this.goNext,
  this.goPrior,
  this.userMail,
  this.userID,
  this.userName,
  this.lUserMail,
  this.lUserID,
  this.lUserName});
this.Name = "Form2";
this.Text = "Form2";
this.Load += new System.EventHandler(this.Form2_Load);
((System.ComponentModel.ISupportInitialize)(this.dataSet11)).EndInit();
this.ResumeLayout(false); }
#endregion private void Form2_Load(object sender, System.EventArgs e)
{

myBind.Position = 0;
infor.Text = "第一条记录";
} private void userMail_Click(object sender, System.EventArgs e)
{

} private void goNext_Click(object sender, System.EventArgs e)
{
myBind.Position += 1;
}
}
}