gridview使用大全.docx
《gridview使用大全.docx》由会员分享,可在线阅读,更多相关《gridview使用大全.docx(68页珍藏版)》请在冰豆网上搜索。
gridview使用大全
gridview使用大全
GridView代码分页保存分页CheckBox的状态
GridView选中,编辑,取消,删除
GridView正反双向排序
GridView和下拉菜单DropDownList结合
GridView和CheckBox结合
鼠标移到GridView某一行时改变该行的背景色方法一
鼠标移到GridView某一行时改变该行的背景色方法二
GridView实现删除时弹出确认对话框
GridView实现自动编号
GridView实现自定义时间货币等字符串格式
GridView实现用“...”代替超长字符串
GridView一般换行与强制换行
GridView显示隐藏某一列
GridView弹出新页面/弹出新窗口
GridView固定表头(不用javascript只用CSS,2行代码,很好用)
GridView合并表头多重表头无错完美版(以合并3列3行举例)
GridView突出显示某一单元格(例如金额低于多少,分数不及格等)
GridView加入自动求和求平均值小计
GridView数据导入Excel/Excel数据读入GridView
1.GridView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。
1:
分页保存选中状态
保存CheckBox的值
GridView在分页过程中并不维护CheckBox的选择状态,幸运的是,我们可以使用Session来维护CheckBox的状态,这个功能使用RememberOldValues完成
privatevoidRememberOldValues()
{
ArrayListcatego
ryIDList=newArrayList();
intindex=-1;
foreach(GridViewRowrowinokZMGV.Rows)
{
index=Convert.ToInt32(okZMGV.DataKeys[row.RowIndex].Value);
boolresult=((CheckBox)row.FindControl("IsCheckBox")).Checked;
//CheckintheSession
if(Session["state"]!
=null)
categoryIDList=(ArrayList)Session["state"];
if(result)
{
if(!
categoryIDList.Contains(index))
categoryIDList.Add(index);
}
else
categoryIDList.Remove(index);
}
if(categoryIDList!
=null&&categoryIDList.Count>0)
Session["state"]=categoryIDList;
}
还原CheckBox的状态
下一步,需要定义一个方法来还原Checkbox的状态值
privatevoidRePopulateValues()
{
ArrayListcategoryIDList=(ArrayList)Session["state"];
if(categoryIDList!
=null&&categoryIDList.Count>0)
{
foreach(GridViewRowrowinokZMGV.Rows)
{
intindex=(int)okZMGV.DataKeys[row.RowIndex].Value;
if(categoryIDList.Contains(index))
{
CheckBoxmyCheckBox=(CheckBox)row.FindControl("IsCheckBox");
myCheckBox.Checked=true;
}
}
}
}
最后,在分页事件里调用上面两个方法
protectedvoidpage_Click(objectsender,ImageClickEventArgse)
{
RememberOldValues();
stringcount=((ImageButton)sender).CommandArgument.ToString().ToLower();
switch(count)
{
case"prev":
if(okZMGV.PageIndex>0)
{
okZMGV.PageIndex-=1;
}
break;
case"next":
if(okZMGV.PageIndex &nb
sp; {
okZMGV.PageIndex+=1;
}
break;
case"0":
okZMGV.PageIndex=0;
break;
case"last":
okZMGV.PageIndex=okZMGV.pagecount-1;
break;
}
BrndOKBind();
RePopulateValues();
}
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:
usingSystem;
usingSystem.Data;
usingSystem.Configuration;
usingSystem.Web;
usingSystem.Web.Security;
usingSystem.Web.UI;
usingSystem.Web.UI.WebControls;
usingSystem.Web.UI.WebControls.WebParts;
usingSystem.Web.UI.HtmlControls;
usingSystem.Data.SqlClient;
publicpartialclass_Default:
System.Web.UI.Page
{
//清清月儿
SqlConnectionsqlcon;
SqlCommandsqlcom;
stringstrCon="DataSource=(local);Database=数据库名;Uid=帐号;Pwd=密码";
protectedvoidPage_Load(objectsender,EventArgse)
{
if(!
IsPostBack)
{
bind();
}
}
protectedvoidGridView1_RowEditing(objectsender,GridViewEditEventArgse)
{
GridView1.EditIndex=e.NewEditIndex;
bind();
}
//删除
protectedvoidGridView1_RowDeleting(objectsender,GridViewDeleteEventArgse)
{
stringsqlstr="deletefrom 表whereid=''"+GridView1.DataKeys[e.RowIndex].Value.ToString()+"''";
sqlcon=newSqlConnection(strCon);
sqlcom=newSqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
bind();
}
//更新
protectedvoidGridView1_RowUpdating(objectsender,Grid
ViewUpdateEventArgse)
{
sqlcon=newSqlConnection(strCon);
stringsqlstr="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()+"''whereid=''"
+GridView1.DataKeys[e.RowIndex].Value.ToString()+"''";
sqlcom=newSqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex=-1;
bind();
}
//取消
protectedvoidGridView1_RowCancelingEdit(objectsender,GridViewCancelEditEventArgse)
{
GridView1.EditIndex=-1;
bind();
}
//绑定
publicvoidbind()
{
stringsqlstr="select*from表";
sqlcon=newSqlConnection(strCon);
SqlDataAdaptermyda=newSqlDataAdapter(sqlstr,sqlcon);
DataSetmyds=newDataSet();
sqlcon.Open();
myda.Fill(myds,"表");
GridView1.DataSource=myds;
GridView1.DataKeyNames=newstring[]{"id"};//主键
GridView1.DataBind();
sqlcon.Close();
}
}
前台主要代码:
......
GridViewID="GridView1"runat="server"AutoGenerateColumns="False"CellPadding="4"
ForeColor="#333333"GridLines="None"OnRowDeleting="GridView1_RowDeleting"OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating"OnRowCancelingEdit="GridView1_RowCancelingEdit">
BoundFieldDataField="SFZ号码"HeaderText="用户ID"ReadOnly="True"/>
BoundFieldDataField="姓名"HeaderText="用户姓名"/>
BoundFieldDataField="员工性别"HeaderText="性别"/>
BoundFieldDataField="家庭住址"HeaderText="家庭住址"/>
CommandF
本文来源【学网】网站链接是
ieldHeaderText="选择"ShowSelectButton="True"/>
CommandFieldHeaderText="编辑"ShowEditButton="True"/>
CommandFieldHeaderText="删除"ShowDeleteButton="True"/>
GridView>
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:
usingSystem;
usingSystem.Data;
usingSystem.Configuration;
usingSystem.Collections;
usingSystem.Web;
usingSystem.Web.Security;
usingSystem.Web.UI;
usingSystem.Web.UI.WebControls;
usingSystem.Web.UI.WebControls.WebParts;
usingSystem.Web.UI.HtmlControls;
usingSystem.Data.SqlClient;
publicpartialclassDefault3:
System.Web.UI.Page
{
//清清月儿的博客
SqlConnectionsqlcon;
stringstrCon="DataSource=(local);Database=北风贸易;Uid=sa;Pwd=";
protectedvoidPage_Load(objectsender,EventArgse)
{
if(!
IsPostBack)
{
ViewState["SortOrder"]="SFZ号码";
ViewState["OrderDire"]="ASC";
bind();
}
}
protectedvoidGridView1_Sorting(objectsender,GridViewSortEventArgse)
{
stringsPage=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();
}
publicvoidbind()
{
stringsqlstr="selecttop5*from飞狐工作室";
sqlco
n=newSqlConnection(strCon);
SqlDataAdaptermyda=newSqlDataAdapter(sqlstr,sqlcon);
DataSetmyds=newDataSet();
sqlcon.Open();
myda.Fill(myds,"飞狐工作室");
DataViewview=myds.Tables["飞狐工作室"].DefaultView;
stringsort=(string)ViewState["SortOrder"]+""+(string)ViewState["OrderDire"];
view.Sort=sort;
GridView1.DataSource=view;
GridView1.DataBind();
sqlcon.Close();
}
}
前台主要代码:
GridViewID="GridView1"runat="server"AllowSorting="True"AutoGenerateColumns="False"
CellPadding="3"Font-Size="9pt"OnSorting="GridView1_Sorting"BackColor="White"BorderColor="#CCCCCC"BorderStyle="None"BorderWidth="1px">
BoundFieldDataField="SFZ号码"HeaderText="用户ID"SortExpression="SFZ号码"/>
BoundFieldDataField="姓名"HeaderText="用户姓名"SortExpression="姓名"/>
BoundFieldDataField="员工性别"HeaderText="性别"SortExpression="员工性别"/>
BoundFieldDataField="家庭住址"HeaderText="家庭住址"SortExpression="家庭住址"/>