经典的GridView72种使用技巧(2)

rue\ ForeColor=\ />

3.GridView正反双向排序：

效果图：点姓名各2次的排序，点其他也一样可以。

后台代码：

using System; using System.Data;

using System.Configuration; using System.Collections; using System.Web;

using System.Web.Security; using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient;

public partial class Default3 : System.Web.UI.Page

{

SqlConnection sqlcon;

string strCon = \北风贸易;Uid=sa;Pwd=\;

protected void Page_Load(object sender, EventArgs e) {

if (!IsPostBack) {

ViewState[\] = \身份证号码\; ViewState[\] = \; bind(); } }

protected void GridView1_Sorting(object sender, GridViewSortEventArgs e) {

string sPage = e.SortExpression;

if (ViewState[\].ToString() == sPage) {

if (ViewState[\].ToString() == \) ViewState[\] = \; else

ViewState[\] = \; } else {

ViewState[\] = e.SortExpression; } bind(); }

public void bind() {

string sqlstr = \飞狐工作室\; sqlcon = new SqlConnection(strCon);

SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); DataSet myds = new DataSet();

sqlcon.Open();

myda.Fill(myds, \飞狐工作室\);

DataView view = myds.Tables[\飞狐工作室\].DefaultView;

string sort = (string)ViewState[\] + \ + (string)ViewState[\]; view.Sort = sort;

GridView1.DataSource = view; GridView1.DataBind(); sqlcon.Close(); } }

前台主要代码：

CellPadding=\ Font-Size=\ OnSorting=\idView1_Sorting\ BackColor=\ BorderColor=\ BorderStyle=\ BorderWidth=\

rue\ ForeColor=\ />

4.GridView和下拉菜单DropDownList结合： 效果图：

后台代码： using System; using System.Data;

using System.Configuration; using System.Collections; using System.Web;

using System.Web.Security; using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient;

public partial class Default4 : System.Web.UI.Page {

SqlConnection sqlcon;

string strCon = \Source=(local);Database=北风贸易;Uid=sa;Pwd=sa\

protected void Page_Load(object sender, EventArgs e) {

DropDownList ddl; if (!IsPostBack)

{

string sqlstr = \top 5 * from 飞狐工作室\ sqlcon = new SqlConnection(strCon);

SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); DataSet myds = new DataSet(); sqlcon.Open();

myda.Fill(myds, \飞狐工作室\ GridView1.DataSource = myds; GridView1.DataBind();

for (int i = 0; i <= GridView1.Rows.Count - 1; i++) {

DataRowView mydrv = myds.Tables[\飞狐工作室\ if (Convert.ToString(mydrv[\员工性别\== \ {

ddl = (DropDownList)GridView1.Rows[i].FindControl(\nList1\

ddl.SelectedIndex = 0; }

if (Convert.ToString(mydrv[\员工性别\== \ {

ddl = (DropDownList)GridView1.Rows[i].FindControl(\nList1\

ddl.SelectedIndex = 1; } }

sqlcon.Close(); } }

public SqlDataReader ddlbind() {

string sqlstr = \distinct 员工性别 from 飞狐工作室\ sqlcon = new SqlConnection(strCon);

SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon); sqlcon.Open();

return sqlcom.ExecuteReader(); }