ASP.NET常用的三十三种实用代码[1]
1. 打开新的窗口并传送参数:
传送参数:
response.write("<script>window.open(‘*.aspx?id="+this.dropdownlist1.selectindex+"&id1="+……+"’)</script>")
接收参数:
string a = request.querystring("id");string b = request.querystring("id1");
2.为按钮添加对话框
button1.attributes.add("onclick","return confirm(‘确认?’)");button.attributes.add("onclick","if(confirm(‘are you sure……?’)){return true;}else{return false;}")
3.删除表格选定记录
int intempid = (int)mydatagrid.datakeys[e.item.itemindex];string deletecmd = "delete from employee where emp_id = " + intempid.tostring()
4.删除表格记录警告
private void datagrid_itemcreated(object sender,datagriditemeventargs e)
{ switch(e.item.itemtype)[来源www.iocblog.net]
{ case listitemtype.item :case listitemtype.alternatingitem :case listitemtype.edititem:tablecell mytablecell;mytablecell = e.item.cells[14];linkbutton mydeletebutton ;mydeletebutton = (linkbutton)mytablecell.controls[0];mydeletebutton.attributes.add("onclick","return confirm(‘您是否确定要删除这条信息’);");break;default:break;}
}
5.点击表格行链接另一页
private void grdcustomer_itemdatabound(object sender, system.web.ui.webcontrols.datagriditemeventargs e)
{ //点击表格打开if (e.item.itemtype == listitemtype.item e.item.itemtype == listitemtype.alternatingitem)
e.item.attributes.add("onclick","window.open(‘default.aspx?id=" + e.item.cells[0].text + "’);");}
双击表格连接到另一页
在itemdatabind事件中
if(e.item.itemtype == listitemtype.item e.item.itemtype == listitemtype.alternatingitem)
{ string orderitemid =e.item.cells[1].text;……
e.item.attributes.add("ondblclick", "location.href=‘……/shippedgrid.aspx?id=" + orderitemid + "’");}
双击表格打开新一页
if(e.item.itemtype == listitemtype.item e.item.itemtype == listitemtype.alternatingitem)
{ string orderitemid =e.item.cells[1].text;……
e.item.attributes.add("ondblclick", "open(‘……/shippedgrid.aspx?id=" + orderitemid + "’)");}
★特别注意:「?id=」 处不能为 「?id =」
6.表格超连接列传递参数
<asp:hyperlinkcolumn target="_blank" headertext="id号" datatextfield="id" navigateurl="aaa.aspx?id=‘<%# databinder.eval(container.dataitem, "数据字段1")%>’ & name=‘<%# databinder.eval(container.dataitem, "数据字段2")%>’ />
7.表格点击改变颜色
if (e.item.itemtype == listitemtype.item e.item.itemtype == listitemtype.alternatingitem)
{ e.item.attributes.add("onclick","this.style.backgroundcolor=‘#99cc00’;this.style.color=‘buttontext’;this.style.cursor=‘default’;");}
写在datagrid的_itemdatabound里
if (e.item.itemtype == listitemtype.item e.item.itemtype == listitemtype.alternatingitem)
{ e.item.attributes.add("onmouseover","this.style.backgroundcolor=‘#99cc00’;this.style.color=‘buttontext’;this.style.cursor=‘default’;");e.item.attributes.add("onmouseout","this.style.backgroundcolor=‘’;this.style.color=‘’;");}
8.关于日期格式
日期格式设定
dataformatstring="{0:yyyy-mm-dd}"
我觉得应该在itembound事件中
e.items.cell["你的列"].text=datetime.parse(e.items.cell["你的列"].text.tostring("yyyy-mm-dd"))