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用asp.net结合xml制作广告管理程序(2)
我们再来看看asp.net的源代码：
由于xml文件占了很大的篇幅，只好把源程序贴在这一页了。(也是很长的哟，大家有性子看才行)
＜% @ page language="c#" responseencoding="gb2312" %＞
＜% @ import namespace="system.data" %＞
＜% @ import namespace="system.xml" %＞
＜% @ import namespace="system.io" %＞
＜script language="c#" runat="server"＞
dataset ds; file://定义公用的dataset
dataview dv; file://定义公用的dataview
string sortfield;
string spath;
public void page_load(object src,eventargs e)
{
if(state["adxml"]==null)
{
spath = server.mappath(".") + "\\adbanners\\ad_gb.xml";
ds = new dataset();
ds.readxml(spath);
state["adxml"] = ds;
}
else
{
ds = (dataset)state["adxml"];
}
dv = ds.tables[0].defaultview;
dv.sort = "imageurl";
if(!page.ispostback)
{
createtable();
}
}
file://捆绑binder
public void createtable()
{
dgxml.datasource = dv;
dgxml.databind();
}
file://翻页时
public void dgxml_changed(object sender,datagridpagechangedeventargs e)
{
createtable();
}
file://删除
public void delitem(object sender,datagridcommandeventargs e)
{
if(((linkbutton)e.commandsource).commandname == "del")
{
file://首先取得当前更新页的行数与currentpageindex
int cpi = (int)dgxml.currentpageindex;
int eii = (int)e.item.itemindex;
int row = cpi*5+eii;
lb.text = row.tostring();
file://删除
dv.delete(row);
dgxml.edititemindex = -1;
ds.writexml(spath);
createtable();
}
}
file://取消
public void dgxml_cancel(object sender,datagridcommandeventargs e)
{
dgxml.edititemindex = -1;
createtable();
}
file://编辑
public void dgxml_edit(object sender,datagridcommandeventargs e)
{
dgxml.edititemindex = (int)e.item.itemindex;
createtable();
}
file://更新
public void dgxml_update(object sender, datagridcommandeventargs e)
{
try
{
file://首先取得当前更新页的行数与currentpageindex
int cpi = (int)dgxml.currentpageindex;
int eii = (int)e.item.itemindex;
int row = cpi*5+eii;
file://lb.text = row.tostring();
file://取得各项值
string imageurl = ((textbox)e.item.cells[2].controls[0]).text;
string navigateurl = ((textbox)e.item.cells[3].controls[0]).text;
string alternatetext = ((textbox)e.item.cells[4].controls[0]).text;
string keyword = ((textbox)e.item.cells[5].controls[0]).text;
string impressions = ((textbox)e.item.cells[6].controls[0]).text;
dv.delete(row);
datarow dr = ds.tables[0].newrow();
dr[0] = imageurl;
dr[1] = navigateurl;
dr[2] = alternatetext;
dr[3] = keyword;
dr[4] = impressions;
ds.tables[0].rows.add(dr);
ds.writexml(spath);
}
catch(exception ee)
{
lb.text = ee.tostring();
}
dgxml.edititemindex = -1;
createtable();
}
public void panelshow(object sender,eventargs e)
{
additem.visible = true;
}
public void additem_click(object sender,eventargs e)
{
datarow dr = ds.tables[0].newrow();
dr[0] = murl.text;
dr[1] = aurl.text;
dr[2] = mtext.text;
dr[3] = akey.text;
dr[4] = atime.text;
ds.tables[0].rows.add(dr);
ds.writexml(spath);
createtable();
additem.visible=false;
}
＜/script＞
＜html＞
＜head＞
＜title＞＜/title＞
＜/head＞
＜body＞
＜form id="form1" runat="server"＞
＜asp:datagrid id="dgxml" runat="server"
allowpaging="true"
pagesize="10"
bordercolor="black"
borderwidth="1"
cellpadding="3"
font-name="verdana"
font-size="8pt"
headerstyle-backcolor="#aaaadd"
pagerstyle-mode="numericpages"
pagerstyle-horizontalalign="right"
pagerstyle-prevpagetext="前页"
pagerstyle-nextpagetext="后页"
onpageindexchanged="dgxml_changed"
oneditcommand="dgxml_edit"
oncancelcommand="dgxml_cancel"
onupdatecommand="dgxml_update"
onitemcommand="delitem"
autogeneratecolumns="false"
＞
＜property name="columns"＞
＜asp:buttoncolumn headertext="删除" text="删除" commandname="del" /＞
＜asp:editcommandcolumn edittext="修改" canceltext="取消" updatetext="更新" itemstyle-wrap="false"
headertext="操作区" headerstyle-wrap="false" /＞
＜asp:boundcolumn headertext="图片地址(相对)" sortfield="imageurl" datafield="imageurl" /＞
＜asp:boundcolumn headertext="链接url" sortfield="navigateurl" datafield="navigateurl" /＞
＜asp:boundcolumn headertext="图片说明" sortfield="alternatetext" datafield="alternatetext" /＞
＜asp:boundcolumn headertext="类别" sortfield="keyword" datafield="keyword" /＞
＜asp:boundcolumn headertext="显示时间" sortfield="impressions" datafield="impressions" /＞
＜/property＞
＜/asp:datagrid＞
＜hr＞
＜asp:button id="vi" text="添加新项" onclick="panelshow" runat="server"/＞
＜br＞
＜asp:panel id="additem" runat="server" visible="false"＞
＜table＞
＜tr bgcolor="#aaaadd"＞＜td colspan=2＞添加新的广告页面＜/td＞＜/tr＞
＜tr＞
＜td＞广告图片url:＜/td＞
＜td＞＜asp:textbox id="murl" runat="server" text="http://" /＞＜/td＞
＜/tr＞
＜tr＞
＜td＞广告链接地址:＜/td＞
＜td＞＜asp:textbox id="aurl" runat="server" text="http://" /＞＜/td＞
＜/tr＞
＜tr＞
＜td＞图片说明：＜/td＞
＜td＞＜asp:textbox id="mtext" runat="server" /＞＜/td＞
＜/tr＞
＜tr＞
＜td＞广告所属类别:＜/td＞
＜td＞＜asp:textbox id="akey" runat="server" /＞＜/td＞
＜/tr＞
＜tr＞
＜td＞显示时间＜/td＞
＜td＞＜asp:textbox id="atime" runat="server" /＞＜/td＞
＜/tr＞
＜tr＞＜td＞
＜asp:button id="submit" text="提交" onclick="additem_click" runat="server" /＞＜/td＞＜/tr＞
＜/table＞
＜/asp:panel＞
＜asp:label id="lb" runat="server" /＞
＜/form＞
＜/body＞
＜/html＞
大家好好分析吧。
