//用户查询得到的将是myDataSet. DataSet myDataSet = new DataSet(); try {
SqlDataAdapter myAdapter = new SqlDataAdapter(); if (mvpguid != \ {
//按照用户输入的mvpguid进行查询.
myAdapter.SelectCommand = new SqlCommand(\MVPGUID='\
SqlCommandBuilder myCB = new SqlCommandBuilder(myAdapter); myAdapter.Fill(myDataSet, \ //建立表间关系.
SqlDataAdapter myAdapter1 = new SqlDataAdapter(\
OtherCompetencies.OtherCompetencies_Id,OtherCompetencies.MVP_Id from MVP,OtherCompetencies where MVP.MVP_Id=OtherCompetencies.MVP_Id and MVP.MVPGUID='\
SqlCommandBuilder myCB1 = new SqlCommandBuilder(myAdapter1); myAdapter1.Fill(myDataSet, \ SqlDataAdapter myAdapter2 = new SqlDataAdapter(\
OtherCompetency.OtherCompetencies_Id,OtherCompetency.OtherCompetency_Text from MVP,OtherCompetencies,OtherCompetency where MVP.MVP_Id=OtherCompetencies.MVP_Id and
OtherCompetencies.OtherCompetencies_Id=OtherCompetency.OtherCompetencies_Id and MVP.MVPGUID='\
SqlCommandBuilder myCB2 = new SqlCommandBuilder(myAdapter2); myAdapter2.Fill(myDataSet, \
SqlDataAdapter myAdapter3 = new SqlDataAdapter(\
Publications.Publications_Id,Publications.MVP_Id from Publications,MVP where MVP.MVP_Id=Publications.MVP_Id and MVP.MVPGUID='\ SqlCommandBuilder myCB3 = new SqlCommandBuilder(myAdapter3); myAdapter3.Fill(myDataSet, \
SqlDataAdapter myAdapter4 = new SqlDataAdapter(\
Publication.Publications_Id,Publication.Id,Publication.Title,Publication.Publisher,Publication.DatePublished,Publication.Abstract,Publication.UrlLink from
MVP,Publications,Publication where MVP.MVP_Id=Publications.MVP_Id and Publications.Publications_Id=Publication.Publications_Id and MVP.MVPGUID='\mvpguid + \
SqlCommandBuilder myCB4 = new SqlCommandBuilder(myAdapter4); myAdapter4.Fill(myDataSet, \ //Create DataRelation, and add it to the DataSet.
DataRelation dr = new DataRelation(\myDataSet.Tables[\
myDataSet.Tables[\
DataRelation dr1 = new DataRelation(\myDataSet.Tables[\ [\
myDataSet.Tables[\ DataRelation dr2 = new DataRelation(\myDataSet.Tables[\ [\
DataRelation dr3 = new DataRelation(\myDataSet.Tables[\
myDataSet.Tables[\
//获取或设置一个指示DataRelation对象是否嵌套的值. dr.Nested = true; dr1.Nested = true; dr2.Nested = true; dr3.Nested = true;
//创建关系到集合中
myDataSet.Relations.Add(dr); myDataSet.Relations.Add(dr1); myDataSet.Relations.Add(dr2); myDataSet.Relations.Add(dr3); } }
catch (SqlException exception) {
return DataError(exception); }
return myDataSet; }
//====================错误信息======================= public DataSet DataError(Exception ex) {
DataSet errDS = new DataSet(\
DataTable errTable = errDS.Tables.Add(\ errTable.Columns.Add(\
errTable.Rows.Add(new Object[] { ex.Message });
return errDS; }
代码有点多，呵呵，然后你在客户端只要引用它的接口就可以了，这样会更好理解一点，代码如下：
//====================客户端查询函数===================== protected void btnSearch_Click1(object sender, EventArgs e) {
string c_mvpGuid = \ try {
c_mvpGuid = this.txtByMVPGUID.Text.ToString(); //getDataSet对象获得查询返回的ds.
DataSet getDataSet = myService.searchData(c_mvpGuid);
///查询默认显示为MVP表.测试的时候在index.aspx页面上显示. this.dgResult.DataSource = getDataSet.Tables[\ this.dgResult.DataBind(); }
catch (Exception ex) {
throw ex; } }
要是有什么不懂的地方，你可以留言，我会给你答复。^_^
呵呵，忘了一件事，如果你用自己的xml文件，自己的数据库，那就没事了，不是的话看看：
