Gridview控件的使用详解

第四讲 GridView 72般绝技

作者：清清月儿

主页：http://blog.csdn.net/21aspnet/ 时间：2007.3.24-26

为了写本文，又搭工又搭料，累的2天2宿没睡觉，这篇文章实在是耗费我太多的心血，版权永远属于CSDN社区的清清月儿，请不要试图修改本文，破坏全文的完整性，希望您尊重我的劳动成果！

目录

1.GridView无代码分页排序： .................................................................................................................................. 1 2.GridView选中，编辑，取消，删除： .................................................................................................................. 2 3.GridView正反双向排序： .................................................................................................................................... 11 4.GridView和下拉菜单DropDownList结合： ...................................................................................................... 18 5.GridView和CheckBox结合： ............................................................................................................................. 24 6.鼠标移到GridView某一行时改变该行的背景色方法一： ............................................................................... 33 7.鼠标移到GridView某一行时改变该行的背景色方法二： ............................................................................... 38 8.GridView实现删除时弹出确认对话框： ............................................................................................................ 41 9.GridView实现自动编号： .................................................................................................................................... 43 10.GridView实现自定义时间货币等字符串格式： .............................................................................................. 47 11.GridView实现用“...”代替超长字符串： ............................................................................................................ 53 12.GridView一般换行与强制换行： ...................................................................................................................... 66 13.GridView显示隐藏某一列： .............................................................................................................................. 68 14.GridView弹出新页面/弹出制定大小位置新窗口： ......................................................................................... 80 15.GridView固定表头(不用javascript只用CSS!，很好用)： ............................................................................. 84 16.GridView合并表头多重表头无错完美版（以合并3列3行举例） .............................................................. 88 17.GridView突出显示某一单元格（例如金额低于多少，分数不及格等） .................................................... 101 18.GridView加入自动求和求平均值小计 ............................................................................................................ 111 19.GridView数据导入Excel/Excel数据读入GridView ...................................................................................... 121

1.GridView无代码分页排序：

效果图：

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

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=\"12\"。

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：

using System;

using System.Data;

using System.Configuration;

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 _Default : System.Web.UI.Page

{

//清清月儿http://blog.csdn.net/21aspnet

SqlConnection sqlcon;

SqlCommand sqlcom;

string strCon = \"Data Source=(local);Database=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 GridViewDeleteEventArgs e)

{

string sqlstr = \"delete from 表 where GridView1.DataKeys[e.RowIndex].Value.ToString() + \"'\";

sqlcon = new SqlConnection(strCon);

sender,

+

id='\"

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 = \"update 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 = \"select * from 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[] { \"id\" };//主键

GridView1.DataBind();

sqlcon.Close();

}

}

前台主要代码：

... ...

ForeColor=\"#333333\" OnRowDeleting=\"GridView1_RowDeleting\" OnRowEditing=\"GridView1_RowEditing\"

GridLines=\"None\"

OnRowUpdating=\"GridView1_RowUpdating\"

OnRowCancelingEdit=\"GridView1_RowCancelingEdit\">

DataField=\"员工性别\"

DataField=\"家庭住址\"

HeaderText=\"选择\"

HeaderText=\"编辑\"

ShowDeleteButton=\"True\" />

BackColor=\"#669999\"

3.GridView正反双向排序：

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

{

//清清月儿的博客http://blog.csdn.net/21aspnet

SqlConnection sqlcon;

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

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

ViewState[\"SortOrder\"] = \"身份证号码\";

ViewState[\"OrderDire\"] = \"ASC\";

bind();

}

}

protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)

{

string sPage = e.SortExpression;

if (ViewState[\"SortOrder\"].ToString() == sPage)

{

if (ViewState[\"OrderDire\"].ToString() == \"Desc\")

ViewState[\"OrderDire\"] = \"ASC\";

else

ViewState[\"OrderDire\"] = \"Desc\";

}

else

{

ViewState[\"SortOrder\"] = e.SortExpression;

}

bind();

}

public void bind()

{

string sqlstr = \"select 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\");

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

string sort = (string)ViewState[\"SortOrder\"] + (string)ViewState[\"OrderDire\"];

\" \" +

view.Sort = sort;

GridView1.DataSource = view;

GridView1.DataBind();

sqlcon.Close();

}

}

前台主要代码：

AutoGenerateColumns=\"False\"

CellPadding=\"3\" Font-Size=\"9pt\"

OnSorting=\"GridView1_Sorting\" BackColor=\"White\" BorderColor=\"#CCCCCC\" BorderStyle=\"None\" BorderWidth=\"1px\">

DataField=\"员工性别\"

HeaderText=\"家庭住址\" SortExpression=\"家庭住址\"/>

BackColor=\"#669999\"

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 = \"Data 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 = \"select 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\"].DefaultView[i];

if (Convert.ToString(mydrv[\"员工性别\"]).Trim() == \"True\")

{

ddl

(DropDownList)GridView1.Rows[i].FindControl(\"DropDownList1\");

ddl.SelectedIndex = 0;

}

if (Convert.ToString(mydrv[\"员工性别\"]).Trim() == \"False\")

{

ddl

(DropDownList)GridView1.Rows[i].FindControl(\"DropDownList1\");

ddl.SelectedIndex = 1;

}

}

sqlcon.Close();

}

=

=

}

public SqlDataReader ddlbind()

{

string sqlstr = \"select 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();

}

前台主要代码：

AutoGenerateColumns=\"False\"

CellPadding=\"3\" Font-Size=\"9pt\" BackColor=\"White\" BorderColor=\"#CCCCCC\" BorderStyle=\"None\" BorderWidth=\"1px\">

runat=\"server\" DataSource='<%# ddlbind()%>' DataValueField=\"员工性别\" DataTextField=\"员工性别\">

HeaderText=\"家庭住址\" SortExpression=\"家庭住址\"/>

BackColor=\"#669999\"

5.GridView和CheckBox结合：

效果图：

后台代码：

using System;

using System.Data;

using System.Configuration;

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 Default5 : System.Web.UI.Page

{

//清清月儿http://blog.csdn.net/21aspnet

SqlConnection sqlcon;

string strCon = \"Data Source=(local);Database=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(\"CheckBox1\");

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(\"CheckBox1\");

if (cbox.Checked == true)

{

string sqlstr = \"delete from 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(\"CheckBox1\");

cbox.Checked = false;

}

}

public void bind()

{

string sqlstr = \"select 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, \"tb_Member\");

GridView1.DataSource = myds;

GridView1.DataKeyNames = new string[] { \"身份证号码\" };

GridView1.DataBind();

sqlcon.Close();

}

}

前台主要代码：

AutoGenerateColumns=\"False\"

CellPadding=\"3\" Font-Size=\"9pt\" BackColor=\"White\" BorderColor=\"#CCCCCC\" BorderStyle=\"None\" BorderWidth=\"1px\">

ID=\"CheckBox1\"

HeaderText=\"家庭住址\" SortExpression=\"家庭住址\"/>

BackColor=\"#669999\"

ID=\"CheckBox2\" runat=\"server\" Font-Size=\"9pt\"

OnCheckedChanged=\"CheckBox2_CheckedChanged\"

Text=\"全选\" />

6.鼠标移到GridView某一行时改变该行的背景色方法一：

效果图：

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(\"onmouseover\

\"c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'\");

//当鼠标移开时还原背景色

e.Row.Attributes.Add(\"onmouseout\\"this.style.backgroundColor=c\");

}

}

}

前台代码：

GridView的行背景色 清清月儿

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 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

sender,

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

// {

// //当鼠标停留时更改背景色

// e.Row.Attributes.Add(\"onmouseover\

\"c=this.style.backgroundColor;this.style.backgroundColor='#00A9FF'\");

// //当鼠标移开时还原背景色

// e.Row.Attributes.Add(\"onmouseout\

\"this.style.backgroundColor=c\");

// }

//}

//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(\"onmouseover\\"this.style.backgroundColor='#E6F5FA'\");

//鼠标移出时，行背景色变

e.Row.Attributes.Add(\"onmouseout\\"this.style.backgroundColor='#FFFFFF'\");

}

}

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)

{

if (e.Row.RowState == DataControlRowState.Normal ||

e.Row.RowState == DataControlRowState.Alternate)

{

((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add(\"onclick\\"javascript:return confirm('你确认要删除：\\\"\" + e.Row.Cells[1].Text + \"\\\"吗?')\");

}

}

}

9.GridView实现自动编号：

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 //清清月儿http://blog.csdn.net/21aspnet

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

{

////鼠标经过时，行背景色变

//e.Row.Attributes.Add(\"onmouseover\\"this.style.backgroundColor='#E6F5FA'\");

////鼠标移出时，行背景色变

//e.Row.Attributes.Add(\"onmouseout\\"this.style.backgroundColor='#FFFFFF'\");

////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(\"onclick\\"javascript:return confirm('你确认要删除：\\\"\" + e.Row.Cells[1].Text + \"\\\"吗?')\");

//}

}

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

{

int id = e.Row.RowIndex + 1;

e.Row.Cells[0].Text = id.ToString();

}

}

注意这时最好把前台的第一列的表头该为“编号”，因为以前的第一列被“吃掉”了。

OnRowDeleting=\"GridView1_RowDeleting\"

OnRowEditing=\"GridView1_RowEditing\"

OnRowUpdating=\"GridView1_RowUpdating\" OnRowCancelingEdit=\"GridView1_RowCancelingEdit\" BorderColor=\"#CCCCCC\"

BorderStyle=\"None\"

BackColor=\"White\" BorderWidth=\"1px\"

Font-Size=\"12px\" OnRowDataBound=\"GridView1_RowDataBound\">

DataField=\"员工性别\"

DataField=\"家庭住址\"

HeaderText=\"选择\"

HeaderText=\"编辑\"

HeaderText=\"删除\"

BackColor=\"#669999\"

10.GridView实现自定义时间货币等字符串格式：

效果图：

解决方法：

在asp.net 2.0中，如果要在绑定列中显示比如日期格式等，如果用下面的方法是显示不了的

DataFormatString=\"{0:M-dd-yyyy}\"

HeaderText=\"CreationDate\" />

主要是由于htmlencode属性默认设置为true,已防止XSS攻击，安全起见而用的，所以，可以有以下两种方法解决

1、

DataFormatString=\"{0:M-dd-yyyy}\"

HtmlEncode=\"false\"

HeaderText=\"CreationDate\" />

将htmlencode设置为false即可

另外的解决方法为，使用模版列

Text='<%# Eval(\"CreationDate\

Text=’<%# Bind(\"CreationDate\-dd-yyyy}\") %>'>

前台代码：

DataSourceID=\"SqlDataSource1\" BackColor=\"White\" BorderWidth=\"1px\"

BorderColor=\"#CCCCCC\"

CellPadding=\"3\"

AllowSorting=\"True\" BorderStyle=\"None\" Font-Size=\"12px\"

OnRowDataBound=\"GridView1_RowDataBound\">

BackColor=\"#669999\" Font-Bold=\"True\"

BackColor=\"White\" ForeColor=\"#000066\"

BackColor=\"#006699\" Font-Bold=\"True\"

ConnectionString=\"<%$ ConnectionStrings:北风贸易ConnectionString1 %>\"

SelectCommand=\"SELECT top 5 [出生日期], [起薪], [身份证号码], [姓名], [家庭住址

],

[邮政编码

]

FROM

[飞狐工作室

]\"

DataSourceMode=\"DataReader\">

附录-常用格式化公式：

{0:C} 货币；

{0:D4}由0填充的4个字符宽的字段中显示整数；

{0:000.0}四舍五入小数点保留第几位有效数字；

{0:N2}小数点保留2位有效数字；{0:N2}% 小数点保留2位有效数字加百分号；

{0:D}长日期；{0:d}短日期；{0:yy-MM-dd} 例如07-3-25；；{0:yyyy-MM-dd} 例如2007-3-25

11.GridView实现用“...”代替超长字符串：

效果图：

解决方法：数据绑定后过滤每一行即可

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\"].DefaultView[i];//表名

gIntro = Convert.ToString(mydrv[\"家庭住址\"]);//所要处理的字段

GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);

}

else

{

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

gIntro = Convert.ToString(mydrv[\"家庭住址\"]);

GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);

}

}

调用的方法：

public string SubStr(string sString, int nLeng)

{

if (sString.Length <= nLeng)

(5 * +

{

return sString;

}

string sNewStr = sString.Substring(0, nLeng);

sNewStr = sNewStr + \"...\";

return sNewStr;

}

后台全部代码：

using System;

using System.Data;

using System.Configuration;

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 _Default : System.Web.UI.Page

{

SqlConnection sqlcon;

SqlCommand sqlcom;

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

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

ViewState[\"SortOrder\"] = \"身份证号码\";

ViewState[\"OrderDire\"] = \"ASC\";

bind();

}

}

protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

{

GridView1.EditIndex = e.NewEditIndex;

bind();

}

protected void GridView1_RowDeleting(object sender,

GridViewDeleteEventArgs e)

{

string sqlstr = \"delete from 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 GridViewUpdateEventArgs e)

{

sqlcon = new SqlConnection(strCon);

sender,

string sqlstr = \"update 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 = \"select 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.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\"].DefaultView[i];

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\"].DefaultView[i + (5 * 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 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

sender,

//e.Row.Attributes.Add(\"onmouseover\\"this.style.backgroundColor='#E6F5FA'\");

////鼠标移出时，行背景色变

//e.Row.Attributes.Add(\"onmouseout\\"this.style.backgroundColor='#FFFFFF'\");

////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(\"onclick\\"javascript:return confirm('你确认要删除：\\\"\" + e.Row.Cells[1].Text + \"\\\"吗?')\");

//}

}

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

{

int id = e.Row.RowIndex + 1;

e.Row.Cells[0].Text = id.ToString();

}

}

}

12.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(\"word-break\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(\"style\\"word-break:keep-all;word-wrap:normal\");

//下面这行是自动换行

GridView1.Attributes.Add(\"style\\"word-break:break-all;word-wrap:break-word\");

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。

13.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

解决方案：

public void bind()

{

string sqlstr = \"select 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.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(\"GridView1的第4列现在的显示隐藏状态是：\"+GridView1.Columns[3].Visible.ToString());

}

注意：CheckBox1的AutoPostBack要True！

后台全部代码如下：

using System;

using System.Data;

using System.Configuration;

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 _Default : System.Web.UI.Page

{

SqlConnection sqlcon;

SqlCommand sqlcom;

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

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

ViewState[\"SortOrder\"] = \"身份证号码\";

ViewState[\"OrderDire\"] = \"ASC\";

bind();

}

}

protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

{

GridView1.EditIndex = e.NewEditIndex;

bind();

}

protected void GridView1_RowDeleting(object sender,

GridViewDeleteEventArgs e)

{

string sqlstr = \"delete from 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 = \"update 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 GridViewCancelEditEventArgs e)

{

GridView1.EditIndex = -1;

sender,

bind();

}

public void bind()

{

string sqlstr = \"select 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.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(\"GridView1的第4列现在的显示隐藏状态是：\"+GridView1.Columns[3].Visible.ToString());

}

}

前台代码：

14.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

OnRowDeleting=\"GridView1_RowDeleting\"

OnRowEditing=\"GridView1_RowEditing\"

OnRowUpdating=\"GridView1_RowUpdating\" OnRowCancelingEdit=\"GridView1_RowCancelingEdit\" BorderColor=\"#CCCCCC\" Font-Size=\"12px\" >

BorderStyle=\"None\"

BackColor=\"White\" BorderWidth=\"1px\"

HeaderText=\"邮政编码\" SortExpression=\"邮政编码\" />

DataField=\"家庭住址\"

姓

名

\"

DataNavigateUrlFormatString=\"Default6.aspx?GoodsID={0}\" Target=\"mainframe\" NavigateUrl=\"~/Default6.aspx\" DataTextField=\"姓名\" >

HeaderText=\"选择\"

HeaderText=\"编辑\"

HeaderText=\"删除\"

BackColor=\"#669999\"

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=\"javascript:varwin=window.open('detail.aspx?ID={0}',null,'width=300,height=200');window.Close();\"

DataTextField=\"LastName\"

HeaderText=\"LastName\">

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！

15.GridView固定表头(不用javascript只用CSS!，很好用)：

效果图：

代码：

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