请教GridView绑定xml 急！

Question

<?xml version="1.0" encoding="gb2312"?>
<viewer interval="4000" isRandom="1">
    <item title="图片1" img="images/01.jpg" url="http://www.codepub.com/" target="_blank" />
    <item title="图片2" img="images/02.jpg" url="http://www.codepub.com/" target="_blank" />
    <item title="图片3" img="images/03.jpg" url="http://www.codepub.com/" target="_blank" />
    <item title="图片4" img="images/04.jpg" url="http://www.codepub.com/" target="_blank" />
    <item title="图片5" img="images/05.jpg" url="http://www.codepub.com/" target="_blank" />
</viewer>我想把title、img、url、target 绑定到GridView显示他们的值，请问如何实现，有代码例子最好！

Answer 1

最近在做一个参数维护的功能,有52中部品,每种部品都对应一个参数表,如果用表的话就要建52张表,这不是客户所希望的,所以决定使用XML作为数据源存储信息,以下是实现的代码：1、XML数据源的文件名为Table.xml,结构如下：
<Tables>
  <SOP>
    <PitchY>0.40</PitchY>
    <T>0.40</T>
    <B>0.40</B>
    <WM>0.20</WM>
    <WM1>0</WM1>
    <WP>0.40</WP>
    <WP1>0</WP1>
    <R>0.05</R>
    <LM>L-0.2</LM>
    <WCM>0.18</WCM>
    <WCP>0.37</WCP>
  </SOP>
  <SOP>
    <PitchY>2.54</PitchY>
    <T>0.70</T>
    <B>0.80</B>
    <WM>0.60</WM>
    <WM1>1</WM1>
    <WP>0.30</WP>
    <WP1>1</WP1>
    <R>0.05</R>
    <LM>L</LM>
    <WCM>0.50</WCM>
    <WCP>0.80</WCP>
  </SOP>
  <DCHIP>
    <BodySize>1005</BodySize>
    <L>0.50</L>
    <W>0.60</W>
    <D>0.40</D>
    <T>0.20</T>
    <S>0.05</S>
    <R>0.05</R>
    <Wm>0.53</Wm>
    <Lm>0.45</Lm>
  </DCHIP>
  <DCHIP>
    <BodySize>1608</BodySize>
    <L>0.70</L>
    <W>0.90</W>
    <D>0.80</D>
    <T>0.30</T>
    <S>0.05</S>
    <R>0.05</R>
    <Wm>0.85</Wm>
    <Lm>0.60</Lm>
  </DCHIP>
  <DCHIP>
    <BodySize>5750</BodySize>
    <L>1.50</L>
    <W>5.30</W>
    <D>4.10</D>
    <T>0.70</T>
    <S>0.15</S>
    <R>0.05</R>
    <Wm>5.20</Wm>
    <Lm>1.30</Lm>
  </DCHIP>
</Tables>2、具体代码        string xmlPath = "Calculation/Tables.xml";
        
       //恢复GridView正常状态
        private void ResetParameter()
        {
            gvParameter.EditIndex = -1;
            LoadParameter(ddlShapeType.SelectedValue);
        }        //加载XML并显示在GridView里
        private void LoadParameter(string shapeType)
        {           
            DataSet dsRule = new DataSet();
            dsRule.ReadXml(xmlPath);            DataTable dtRule = dsRule.Tables[shapeType];
            
            gvParameter.DataSource = dtRule;
            gvParameter.DataBind();
        }        //新增事件
        protected void lnbAddNew_Click(object sender, EventArgs e)
        {
            if (ddlShapeType.SelectedValue.Length == 0)
            {
                lblMsg.Visible = true;
                lblMsg.Text = "Warning: Please select shape type !";
                return;
            }
            else if (gvParameter.Rows.Count == 0)
            {
                lblMsg.Visible = true;
                lblMsg.Text = "Warning: [" + ddlShapeType.SelectedValue + "] table not exists !";
                return;
            }                            DataSet ds = new DataSet();
            ds.ReadXml(xmlPath);
            DataTable dt = ds.Tables[ddlShapeType.SelectedValue];            DataRow dr = dt.NewRow();
            dt.Rows.Add(dr);            ds.WriteXml(xmlPath);   //将修改写入Table.xml            ResetParameter();
        }       //编辑事件
        protected void gvParameter_RowEditing(object sender, GridViewEditEventArgs e)
        {
            gvParameter.EditIndex = e.NewEditIndex;
            LoadParameter(ddlShapeType.SelectedValue);            GridViewRow row = gvParameter.Rows[e.NewEditIndex];            //前面2列是Delete、Edit,故从第三列开始
            for (int i = 2; i < row.Cells.Count; i++)
            {
                TextBox tb = (TextBox)row.Cells[i].Controls[0];
                tb.Width = 50;
            }
        }       //更新事件
        protected void gvParameter_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            GridViewRow row = gvParameter.Rows[e.RowIndex]; //获得当前行            int numCell = row.Cells.Count;  //共几列单元格(包含Edit和Delete 2列)
            int currentRow = row.DataItemIndex; //对应DataSet对应的行索引            DataSet ds = new DataSet();
            ds.ReadXml(xmlPath);
            DataRow dr;            dr = ds.Tables[ddlShapeType.SelectedValue].Rows[row.DataItemIndex];  //找到对应与DataSet行            string[] str = null;   //此数组定义表的列名            switch (ddlShapeType.SelectedValue)
            {
                case "SOP":
                    {
                        str =new string[]{ "PitchY", "T", "B", "WM", "WM1", "WP", "WP1", "R", "LM", "WCM", "WCP" };
                        break;
                    }
                case "DCHIP":
                    {
                        str = new string[] { "BodySize", "L", "W", "D", "T", "S", "R", "Wm", "Lm" };
                        break;
                    }
            }            int j = 0;
            //从第3列开始,前面有2列是Edit和Delete
            for (int i = 2; i < numCell; i++)
            {
                string cText = ((TextBox)row.Cells[i].Controls[0]).Text;                dr[str[j]] = cText;                j++;
            }            ds.WriteXml(xmlPath);   //将修改写入Table.xml            ResetParameter();
        }        //取消修改
        protected void gvParameter_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
        {
            ResetParameter();
        }       //删除事件
        protected void gvParameter_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {
            GridViewRow row = gvParameter.Rows[e.RowIndex];            int curr = row.RowIndex;
            DataSet ds = new DataSet();
            ds.ReadXml(xmlPath);            DataRow dr = ds.Tables[ddlShapeType.SelectedValue].Rows[curr];
            dr.Delete();
            ds.WriteXml(xmlPath);            ResetParameter();
        }

Answer 2

用XmlDataSource设置一下Xpath：/viewer/item/就行了,再在GridView上面对应绑定title,img,url,target就行了

Answer 3

     
//加载XML并显示在GridView里   private void LoadParameter(string shapeType) 
        {          
            DataSet dsRule = new DataSet(); 
            dsRule.ReadXml(xmlPath);             DataTable dtRule = dsRule.Tables[shapeType]; 
            
            gvParameter.DataSource = dtRule; 
            gvParameter.DataBind(); 
        } 这里怎么怎么能用到我的XML文件上啊？
能解释一下这代码吗？
    protected void Page_Load(object sender, EventArgs e)
    {
        LoadParameter()；
     } 
 不可以查询出来的

Answer 4

//新增事件
  protected void lnbAddNew_Click(object sender, EventArgs e)
  {
  if (ddlShapeType.SelectedValue.Length == 0)
  {
  lblMsg.Visible = true;
  lblMsg.Text = "Warning: Please select shape type !";
  return;
  }
  else if (gvParameter.Rows.Count == 0)
  {
  lblMsg.Visible = true;
  lblMsg.Text = "Warning: [" + ddlShapeType.SelectedValue + "] table not exists !";
  return;
  }     DataSet ds = new DataSet();
  ds.ReadXml(xmlPath);
  DataTable dt = ds.Tables[ddlShapeType.SelectedValue];  DataRow dr = dt.NewRow();
  dt.Rows.Add(dr);  ds.WriteXml(xmlPath); //将修改写入Table.xml  ResetParameter();
  }ddlShapeType 这个是什么?