ASPX pageCode:
<% @ Page Language = "C #" autoeventwireup = "true" codefile = "default. aspx. cs" inherits = "manage_news_default" enableeventvalidation = "false" %>
<! Doctype HTML public "-// W3C // dtd xhtml 1.0 transitional // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<HTML xmlns = "http://www.w3.org/1999/xhtml">
<Head runat = "server">
<Title> No title page </title>
</Head>
<Body>
<Form ID = "form1" runat = "server">
<Div>
<Asp: gridview id = "gridview1" runat = "server" autogeneratecolumns = "false" cellpadding = "3" onrowdeleting = "gridview1_rowdeleting" onrowediting = "gridview1_rowediting"
Onrowupdating = "gridview1_rowupdating" onrowcancelingedit = "gridview1_rowcancelingedit" allowpaging = "true"
Onpageindexchanging = "gridview1_pageindexchanging" backcolor = "white" bordercolor = "# cccccc" borderstyle = "NONE" borderwidth = "1px"
>
<Footerstyle backcolor = "white" forecolor = "#000066"/>
<Rowstyle forecolor = "#000066" type = "regxph" text = "yourobjectname"/>
<Selectedrowstyle backcolor = "#669999" font-bold = "true" forecolor = "white"/>
<Pagerstyle backcolor = "white" forecolor = "#000066" horizontalalign = "Left"/>
<Headerstyle backcolor = "#006699" font-bold = "true" forecolor = "white"/>
<Columns>
<Asp: boundfield datafield = "log_id" headertext = "no." sortexpression = "log_id" insertvisible = "false" readonly = "true"/>
<Asp: boundfield datafield = "log_title" headertext = "title" sortexpression = "log_title"/>
<Asp: commandfield headertext = "edit" showeditbutton = "true"/>
<Asp: commandfield headertext = "delete" showdeletebutton = "true"/>
</Columns>
</ASP: gridview>
<Div> <asp: button id = "button1" runat = "server" text = "Export excel" onclick = "button#click"/> </div>
</Div>
</Form>
</Body>
</Html>
Aspx. CS code:
Using system;
Using system. Data;
Using system. Data. oledb;
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. IO;
Public partial class manage_news_default: system. Web. UI. Page
{
Oledbconnection sqlcon;
Oledbcommand sqlcom;
String strcon = configurationmanager. etettings ["DB"]. tostring ();
Protected void page_load (Object sender, eventargs E)
{
If (! Ispostback)
{
BIND ();
}
}
Protected void gridviewinclurowediting (Object sender, gridviewediteventargs E)
{
Gridview1.editindex = E. neweditindex;
BIND ();
}
// Delete
Protected void gridview1_rowdeleting (Object sender, gridviewdeleteeventargs E)
{
String sqlstr = "delete from blog_article where log_id =" + convert. toint16 (gridview1.datakeys [E. rowindex]. value. tostring () + "";
Sqlcon = new oledbconnection ("provider = Microsoft. Jet. oledb.4.0; Data Source =" + server. mappath (strcon ));
Sqlcom = new oledbcommand (sqlstr, sqlcon );
Sqlcon. open ();
Sqlcom. executenonquery ();
Sqlcon. Close ();
BIND ();
}
// Update
Protected void gridview1_rowupdating (Object sender, gridviewupdateeventargs E)
{
Sqlcon = new oledbconnection ("provider = Microsoft. Jet. oledb.4.0; Data Source =" + server. mappath (strcon ));
String sqlstr = "Update blog_article set log_title = '"
+ (Textbox) (gridview1.rows [E. rowindex]. cells [1]. controls [0]). Text. tostring (). Trim ()
// + "', Field 2 ='" + (textbox) (gridview1.rows [E. rowindex]. cells [2]. controls [0]). text. tostring (). trim ()
+ "'Where log_id =" + convert. toint16 (gridview1.datakeys [E. rowindex]. value. tostring () + "";
Sqlcom = new oledbcommand (sqlstr, sqlcon );
Sqlcon. open ();
Sqlcom. executenonquery ();
Sqlcon. Close ();
Gridview1.editindex =-1;
BIND ();
}
// Cancel
Protected void gridview1_rowcancelingedit (Object sender, gridviewcancelediteventargs E)
{
Gridview1.editindex =-1;
BIND ();
}
// Bind
Public void BIND ()
{
String sqlstr = "select * from [blog_article]";
Sqlcon = new oledbconnection ("provider = Microsoft. Jet. oledb.4.0; Data Source =" + server. mappath (strcon ));
Oledbdataadapter myda = new oledbdataadapter (sqlstr, sqlcon );
Dataset myds = new dataset ();
Sqlcon. open ();
Myda. Fill (myds, "table ");
Gridview1.datasource = myds;
Gridview1.datakeynames = new string [] {"log_id"}; // primary key
Gridview1.databind ();
Sqlcon. Close ();
Sqlcon. Dispose ();
}
Protected void gridview1_pageindexchanging (Object sender, gridviewpageeventargs E)
{
Gridview1.pageindex = E. newpageindex;
BIND ();
}
Public override void verifyrenderinginserverform (Control)
{}
Protected void button#click (Object sender, eventargs E)
{
Response. Clear ();
Response. Buffer = true;
Response. charset = "gb2312 ";
response. appendheader ("content-disposition", "attachment?filename=excel.xls"); // convert it to another suffix to the following
response. contentencoding = system. text. encoding. utf7; //; character set format
response. contenttype = "application/MS-excel"; // convert to another type, for example, change EXCEL to word
stringwriter ostringwriter = new stringwriter ();
htmltextwriter ohtmltextwriter = new htmltextwriter (ostringwriter);
gridview1.allowpaging = false;
gridview1.columns [gridview1.columns. count-1]. visible = false; // Delete is not displayed
gridview1.columns [gridview1.columns. count-2]. visible = false; // edit not displayed
BIND ();
Gridview1.rendercontrol (ohtmltextwriter );
Response. Output. Write (ostringwriter. tostring ());
Response. Flush ();
Response. End ();
}
}
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