C#GridView绑定datatable数据

GridView用法：
1. 绑定datatable
public void playtable(GridView gv, DataTable dt)
{
gv.DataSource = dt;
gv.DataBind();
}
2. 添加GridView换页，选择，排序事件（05net中以datatable为数据源时需要人工添加代码
//分页
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
playtable(GridView1, eResult);//再次绑定数据

}
//排序
protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
{
ViewState["sortexpression"] = e.SortExpression;//viewstate保存排序方式

if (ViewState["sortdirection"] == null)
{
ViewState["sortdirection"] = "asc";//默认为ascend升序
}
else
{
if (ViewState["sortdirection"].ToString() == "asc")
{
ViewState["sortdirection"] = "desc";
//初始为升序，点击则为descend降序
}
else
{
ViewState["sortdirection"] = "asc";
}
}
gridBind(GridView1, eResult);//排序时须将datatable转dataview
}

//数据绑定须以dataview形式
public void gridBind(GridView gv,DataTable dt)
{
DataView dv = dt.DefaultView;
if (ViewState["sortexpression"] != null)
{
dv.Sort = ViewState["sortexpression"].ToString() + " " + ViewState["sortdirection"].ToString();
}

GridView1.DataSource = dv;
GridView1.DataBind();

}
//选择事件
//在选择事件中，可以写当选择该行时需要进行的操作
protected void GridView1_SelectedIndexChanged1(object sender, EventArgs e)
{
GridViewRow row = GridView1.SelectedRow;
string filePath = row.Cells[1].Text.Trim().ToString();//第二列中的数据作为参数
Session["filepath"] = filePath;
Response.Redirect("fileDisplay.aspx");

}