GridView的19种操作

更新时间:2024-05-02 15:02:01 阅读量: 综合文库 文档下载

说明:文章内容仅供预览,部分内容可能不全。下载后的文档,内容与下面显示的完全一致。下载之前请确认下面内容是否您想要的,是否完整无缺。

GridView 19种操作

快速预览:

1.GridView无代码分页排序 2.GridView选中,编辑,取消,删除

3.GridView正反双向排序 4.GridView和下拉菜单DropDownList结合 5.GridView和CheckBox结合 6.标移到GridView某一行时改变该行的背景色方法一 7.鼠标移到GridView某一行时改变该行的背景色方法二 8.GridView实现删除时弹出确认对话框 9.GridView实现自动编号

10.GridView实现自定义时间货币等字符串格式

11.GridView实现用“...”代替超长字符串 12.GridView一般换行与强制换行 13.GridView显示隐藏某一列 14.GridView弹出新页面/弹出新窗口 15.GridView固定表头(不用javascript只用CSS,2行代码,很好用) 16.GridView合并表头多重表头无错完美版(以合并3列3行举例) 17GridView突出显示某一单元格(例如金额低于多少,分数不及格等) 18.GridView加入自动求和求平均值小计

19.GridView数据导入Excel/Excel数据读入GridView

1.GridView无代码分页排序:

1.AllowSorting设为True,aspx代码中是AllowSorting=\;

2.默认1页10条,如果要修改每页条数,修改PageSize即可,在aspx代码中是PageSize=\。 3.默认的是单向排序的,右击GridView弹出“属性”,选择AllowSorting为True即可。 2.GridView选中,编辑,取消,删除: 效果图:

后台代码:

你可以使用sqlhelper,本文没用。代码如下:

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

SqlConnection sqlcon; SqlCommand sqlcom;

string strCon = \数据库名;Uid=帐号;Pwd=密码\ protected void Page_Load(object sender, EventArgs e) {

if (!IsPostBack) {

bind(); } }

protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) {

GridView1.EditIndex = e.NewEditIndex; bind(); }

//删除 protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e) {

string sqlstr = \表 where id='\ GridView1.DataKeys[e.RowIndex].Value.ToString() + \

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

sqlcom.ExecuteNonQuery(); sqlcon.Close(); bind(); }

//更新 protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e) {

sqlcon = new SqlConnection(strCon); string sqlstr = \表 set 字段1='\+

((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + \字段2='\+

(TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + \字段3='\

((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + \where id='\

+ GridView1.DataKeys[e.RowIndex].Value.ToString() + \ sqlcom=new SqlCommand(sqlstr,sqlcon); sqlcon.Open();

sqlcom.ExecuteNonQuery(); sqlcon.Close();

GridView1.EditIndex = -1; bind(); } //取消

protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

{

GridView1.EditIndex = -1; bind(); }

//绑定 public void bind() {

string sqlstr = \表\ sqlcon = new SqlConnection(strCon);

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

GridView1.DataSource = myds;

GridView1.DataKeyNames = new string[] { \主键 GridView1.DataBind(); sqlcon.Close(); } }

前台主要代码: ... ...

OnRowEditing=\OnRowUpdating=\OnRowCancelingEdit=\

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:

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[\ {

if (ViewState[\ ViewState[\ else

ViewState[\ } else {

ViewState[\ } 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\

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

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

前台主要代码:

CellPadding=\BackColor=\

4.GridView和下拉菜单DropDownList结合:效果图:

后台代码:

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

SqlConnection sqlcon;

string strCon = \北风贸易;Uid=sa;Pwd=sa\ protected void Page_Load(object sender, EventArgs e) {

DropDownList ddl; if (!IsPostBack) {

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\ 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(\ ddl.SelectedIndex = 0; }

if (Convert.ToString(mydrv[\员工性别\ {

ddl = (DropDownList)GridView1.Rows[i].FindControl(\ ddl.SelectedIndex = 1; } }

sqlcon.Close(); } }

public SqlDataReader ddlbind() {

string sqlstr = \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(); }

前台主要代码: 区别的两行

1

ddlbind()%>' DataValueField=\员工性别\员工性别\ 5.GridView和CheckBox结合: 效果图:

后台代码:

public partial class Default5 : System.Web.UI.Page { SqlConnection sqlcon;

string strCon = \北风贸易;Uid=sa;Pwd=sa\ protected void Page_Load(object sender, EventArgs e) {

if (!IsPostBack) {

bind();

} }

protected void CheckBox2_CheckedChanged(object sender, EventArgs e) {

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

CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl(\ if (CheckBox2.Checked == true) {

cbox.Checked = true; } else {

cbox.Checked = false; } } }

protected void Button2_Click(object sender, EventArgs e) {

sqlcon = new SqlConnection(strCon); SqlCommand sqlcom;

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

CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl(\ if (cbox.Checked == true) {

string sqlstr = \飞狐工作室 where 身份证号码='\GridView1.DataKeys[i].Value + \

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

sqlcom.ExecuteNonQuery(); sqlcon.Close(); } } bind(); }

protected void Button1_Click(object sender, EventArgs e) {

CheckBox2.Checked = false;

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

CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl(\ cbox.Checked = false; } }

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, \

GridView1.DataSource = myds;

GridView1.DataKeyNames = new string[] { \身份证号码\ GridView1.DataBind(); sqlcon.Close(); } }

前台主要代码:区别的列

区别列:

6.鼠标移到GridView某一行时改变该行的背景色方法一: 做法:

双击GridView的OnRowDataBound事件;

在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { int i;

//执行循环,保证每条数据都可以更新

for (i = 0; i < GridView1.Rows.Count; i++)

{

//首先判断是否是数据行

if (e.Row.RowType == DataControlRowType.DataRow) {

//当鼠标停留时更改背景色

e.Row.Attributes.Add(\

\ //当鼠标移开时还原背景色

e.Row.Attributes.Add(\ } } }

7.鼠标移到GridView某一行时改变该行的背景色方法二:效果图: 做法:和上面的一样就是代码不同

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) {

//int i;

////执行循环,保证每条数据都可以更新

//for (i = 0; i < GridView1.Rows.Count; i++) //{

// //首先判断是否是数据行

// if (e.Row.RowType == DataControlRowType.DataRow) // {

// //当鼠标停留时更改背景色

// e.Row.Attributes.Add(\

\ // //当鼠标移开时还原背景色

// e.Row.Attributes.Add(\

// } //}

//如果是绑定数据行

if (e.Row.RowType == DataControlRowType.DataRow) {

//鼠标经过时,行背景色变

e.Row.Attributes.Add(\ //鼠标移出时,行背景色变

e.Row.Attributes.Add(\ } }

8.GridView实现删除时弹出确认对话框: 效果图:

实现方法:

双击GridView的OnRowDataBound事件;

在后台的GridView1_RowDataBound()方法添加代码,最后代码如下所示:

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) {

//如果是绑定数据行

if (e.Row.RowType == DataControlRowType.DataRow) {

{

return sString; }

string sNewStr = sString.Substring(0, nLeng); sNewStr = sNewStr + \ return sNewStr; }后台全部代码:

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

SqlConnection sqlcon; SqlCommand sqlcom;

string strCon = \北风贸易;Uid=sa;Pwd=sa\ protected void Page_Load(object sender, EventArgs e) {

if (!IsPostBack) {

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

protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) {

GridView1.EditIndex = e.NewEditIndex; bind(); }

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)

{

string sqlstr = \飞狐工作室 where 身份证号码='\GridView1.DataKeys[e.RowIndex].Value.ToString() + \ sqlcon = new SqlConnection(strCon); sqlcom = new SqlCommand(sqlstr,sqlcon); sqlcon.Open();

sqlcom.ExecuteNonQuery(); sqlcon.Close(); bind(); }

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e) {

sqlcon = new SqlConnection(strCon);

string sqlstr = \飞狐工作室 set 姓名='\ +

((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + \家庭住址='\ +

((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + \where 身份证号码='\

+ GridView1.DataKeys[e.RowIndex].Value.ToString() + \ sqlcom=new SqlCommand(sqlstr,sqlcon); sqlcon.Open();

sqlcom.ExecuteNonQuery(); sqlcon.Close();

GridView1.EditIndex = -1; bind(); }

protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e) {

GridView1.EditIndex = -1; 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\ GridView1.DataSource = myds;

GridView1.DataKeyNames = new string[] { \身份证号码\ GridView1.DataBind();

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

DataRowView mydrv; string gIntro;

if (GridView1.PageIndex == 0) {

mydrv = myds.Tables[\飞狐工作室\ gIntro = Convert.ToString(mydrv[\家庭住址\ GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2); }

else {

mydrv = myds.Tables[\飞狐工作室\GridView1.PageIndex)];

gIntro = Convert.ToString(mydrv[\家庭住址\ GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2); } }

sqlcon.Close(); }

public string SubStr(string sString, int nLeng) {

if (sString.Length <= nLeng) {

return sString; }

string sNewStr = sString.Substring(0, nLeng); sNewStr = sNewStr + \ return sNewStr; }

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) {

//如果是绑定数据行

if (e.Row.RowType == DataControlRowType.DataRow) {

////鼠标经过时,行背景色变

//e.Row.Attributes.Add(\ ////鼠标移出时,行背景色变

//e.Row.Attributes.Add(\ ////当有编辑列时,避免出错,要加的RowState判断

//if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate) //{

// ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add(\\你确认要删除:\\\吗?')\ //} }

if (e.Row.RowIndex != -1) {

int id = e.Row.RowIndex + 1; e.Row.Cells[0].Text = id.ToString(); } } }

11.GridView一般换行与强制换行:

效果图:

首先设置

gridview里有一列绑定的数据很长,显示的时候在一行里面显示,页面拉得很宽。 原因是连续英文段为一个整体导致的,在RowDataBound中添加上了一句e.Row.Cells[2].Style.Add(\就可以。 如果要给所有的列增加此属性:

protected void Page_Load(object sender, EventArgs e) {

//正常换行

GridView1.Attributes.Add(\ //下面这行是自动换行

GridView1.Attributes.Add(\ if (!IsPostBack) {

bind();//调用数据绑定即可 } }

总之:善用CSS的word-break:break-all;word-wrap:break-word属性即可,这个属性是通用的对于顽固的南换行问题都可以解决,不局限于GridView。 12.GridView显示隐藏某一列:

本方案为月儿独创,不同于网上其他方式,我觉得用一个CheckBox更人性化,这样可以隐藏不必要的列,让用户自己选择需要出现的列,在处理多列时这是一个很好的解决方案!

效果图:图1-开始 图2-点击显示的CheckBox后

解决方案: 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\ GridView1.DataSource = myds;

GridView1.DataKeyNames = new string[] { \身份证号码\ GridView1.DataBind(); sqlcon.Close();

GridView1.Columns[3].Visible = false;//一开始隐藏

CheckBox1.Checked = false;//如果不这样后面的代码会把他True }

双击CheckBox1,在CheckedChanged方法里写上代码,最后代码如下: protected void CheckBox1_CheckedChanged(object sender, EventArgs e) {

GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible; Response.Write(\的第4列现在的显示隐藏状态是:\ }

注意:CheckBox1的AutoPostBack要True! 后台全部代码如下:

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

SqlConnection sqlcon; SqlCommand sqlcom;

string strCon = \北风贸易;Uid=sa;Pwd=sa\ protected void Page_Load(object sender, EventArgs e) {

if (!IsPostBack) {

ViewState[\身份证号码\ ViewState[\ bind();

} }

protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) {

GridView1.EditIndex = e.NewEditIndex; bind(); }

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e) {

string sqlstr = \飞狐工作室 where 身份证号码='\GridView1.DataKeys[e.RowIndex].Value.ToString() + \ sqlcon = new SqlConnection(strCon); sqlcom = new SqlCommand(sqlstr,sqlcon); sqlcon.Open();

sqlcom.ExecuteNonQuery(); sqlcon.Close(); bind(); }

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e) {

sqlcon = new SqlConnection(strCon);

string sqlstr = \飞狐工作室 set 姓名='\ +

((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + \家庭住址='\ +

((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + \where 身份证号码='\

+ GridView1.DataKeys[e.RowIndex].Value.ToString() + \

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

sqlcom.ExecuteNonQuery(); sqlcon.Close();

GridView1.EditIndex = -1; bind(); }

protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e) {

GridView1.EditIndex = -1; 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\ GridView1.DataSource = myds;

GridView1.DataKeyNames = new string[] { \身份证号码\ GridView1.DataBind(); sqlcon.Close();

GridView1.Columns[3].Visible = false; CheckBox1.Checked = false;

}

protected void CheckBox1_CheckedChanged(object sender, EventArgs e) {

GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible; Response.Write(\的第4列现在的显示隐藏状态是:\ } }

前台代码:

GridView显示隐藏列 清清月儿http://blog.csdn.net/21aspnet

AutoGenerateColumns=\OnRowEditing=\

OnRowUpdating=\

OnRowCancelingEdit=\

BorderColor=\>

OnCheckedChanged=\显示隐藏家庭住址\/>

13.GridView弹出新页面/弹出制定大小位置新窗口: 效果图:

方案一:简单的方法,新窗口不固定大小

OnRowUpdating=\

OnRowCancelingEdit=\

BorderColor=\>

DataNavigateUrlFormatString=\

Target=\姓名\

DataNavigateUrlFields是链接的字段名,DataNavigateUrlFormatString是路径。 方案二:精确控制弹出窗口大小位置

DataNavigateUrlFormatString=\width=300,height=200');window.Close();\

DataTextField=\使用的是结合javascript的window.open方法,关于window.open的参数网上有很多帖子,本站也有许多参考

弹出窗口大全 http://blog.csdn.net/21aspnet/archive/2004/10/25/150231.aspx 即可! 14.GridView固定表头(不用javascript只用CSS!,很好用): 效果图:

代码:

GridView固定表头 清清月儿http://blog.csdn.net/21aspnet

用法:CSS设如上的样式,HeaderStyle加CssClass=\,套住GridView的Div设置高度宽度

本文来源:https://www.bwwdw.com/article/kj1g.html

Top