When we import data on DataGrid into Excel, if you encounter a longer numeric string, such as the ID number, you will be used as a digital look, and convert it into a scientific counting method, resulting in loss of data The following method solves this problem and examples how to make other formatting.
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OutputExcel.aspx
<% @ Page language = "c #" codebehind = "outputExcel.aspx.cs" autoeventwireup = "false" inherits = "EMENG.EXAM.OUTPUTEXCEL"%>
OutputExcel </ title> </ head> <body> <form id =" form1 "method =" post "runat =" server "> <asp: datagrid id = "DataGrid1" runat = "server"> </ ask: dataGrid> <ask: button id = "button1" runat = "server" text = "Output to Excel"> </ asp: button> </ form> </ body > </ Html></p>
<p>OutputExcel.aspx.cs</p>
<p>using System; using System.Collections; using System.ComponentModel; using System.Data; using System.Drawing; using System.Web; using System.Web.SessionState; using System.Web.UI; using System.Web.UI.WebControls Using system.Web.ui.htmlcontrols;</p>
<p>Summary description of Namespace Emeng.exam {/// <summary> /// OutputExcel. /// </ summary> public class outputexcel: system.web.ui.page {protected system.web.ui.webcontrols.button button1; protected system.web.ui.webcontrols.DataGrid DataGrid1;</p>
<p>Private void page_load (object sender, system.eventargs e) {// Place the user code here to initialize the page DataGrid1.datasource = createDataSource (); DataGrid1.Database ();} /// <summary> /// creation data Source /// </ summary> /// <returns> DataView </ returns> iCollection CreateDataSource () {</p>
<p>DataTable DT = New Datatable (); DATAROW DR; DT.COLUMNS.ADD (New Datacolumn ("ID Data Number", TypeOf (String))))); DT.COLUMNS.ADD (New Datacolumn ("Book Unit), Typeof (Decimal )))); DT.Columns.Add (New Datacolumn ("Purchase quantity", TypeOf (int32))); DT.COLUMNS.ADD (New Datacolumn ("Total Price", TypeOf (Decimal)); for (INT I = 0; I <30; i ) {DR = DT.NEWROW ();</p>
<p>DR [0] = "123456789123456789"; DR [1] = 100 * i /3.0; DR[2] = i 5; DR [3] = (decimal) DR [1] * (int32) DR [2]; Dt.Rows.Add (DR);} DataView DV = New DataView (DT); Return DV;} /// <summary> /// output to Excel /// </ summary> /// <param name = " Sender "> </ param> /// <param name =" e "> </ param> private void button1_click (object sender, system.eventargs e) {response.clear (); response.buffer = true; response.charset = "GB2312"; Response.Appendheader ("Content-Disposition", "Attachment; FileName = filename.xls"); response.contentencoding = system.text.encoding.Getencoding ("GB2312"); // Set the output stream as Simplified Chinese response.contenttype = "Application / MS-Excel"; // Set the output file type to an Excel file. this.EnableViewState = false; System.Globalization.CultureInfo myCItrad = new System.Globalization.CultureInfo ( "ZH-CN", true); System.IO.StringWriter oStringWriter = new System.IO.StringWriter (myCItrad); System.Web. UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter (oStringWriter); this.DataGrid1.RenderControl (oHtmlTextWriter); Response.Write (oStringWriter.ToString ()); Response.End ();}</p>
<p>#REGION Web Form Designer Generated Code Override Protected Void OnInit (Eventargs E) {//// Codegen: This call is required for the ASP.NET Web Form Designer. //Initializecomponent();Base.oninit (E);</p>
<p>/// <summary> /// Designer supports the required method - do not use the code editor to modify the // / this method. /// </ summary> private void InitializeComponent () {this.Button1.Click = new System.EventHandler (this.Button1_Click); this.DataGrid1.ItemDataBound = new System.Web.UI.WebControls.DataGridItemEventHandler (this. DataGrid1_itemdatabase; this.load = new system.eventhandler (this.page_load);} # endregion</p>
<p>private void DataGrid1_ItemDataBound (object sender, System.Web.UI.WebControls.DataGridItemEventArgs e) {if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) {e.Item.Cells [0] .attributes.add ("style", "vnd.ms-excel.numberformat: @"); E.Item.cells [3] .attributes.add ("style", "vnd.ms-excel.numberformat : ¥ #, ###. 00 ");}}}}</p></div><div class="text-center mt-3 text-grey">
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var debug = DEBUG = 0;
var url_rewrite_on = 1;
var url_path = './';
var forumarr = {"1":"Tech"};
var fid = 1;
var uid = 0;
var gid = 0;
xn.options.water_image_url = 'view/img/water-small.png';
</script><script src="view/js/wellcms.js?2.2.0"></script><a class="scroll-to-top rounded" href="javascript:void(0);"><i class="icon-angle-up"></i></a><a class="scroll-to-bottom rounded" href="javascript:void(0);" style="display: inline;"><i class="icon-angle-down"></i></a></body></html><script>
var forum_url = 'list-1.html';
var safe_token = 'ZhG7p64nALZo_2FAd5Wt5lwTb_2F8S6T_2BSz4PNI3f_2FqSwh2ylrsa4O_2FoZIKpVxjv1IKw5tL8WiC121waccdr6anF3Q_3D_3D';
var body = $('body');
body.on('submit', '#form', function() {
var jthis = $(this);
var jsubmit = jthis.find('#submit');
jthis.reset();
jsubmit.button('loading');
var postdata = jthis.serializeObject();
$.xpost(jthis.attr('action'), postdata, function(code, message) {
if(code == 0) {
location.reload();
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$.alert(message);
jsubmit.button('reset');
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return false;
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function resize_image() {
var jmessagelist = $('div.message');
var first_width = jmessagelist.width();
jmessagelist.each(function() {
var jdiv = $(this);
var maxwidth = jdiv.attr('isfirst') ? first_width : jdiv.width();
var jmessage_width = Math.min(jdiv.width(), maxwidth);
jdiv.find('img, embed, iframe, video').each(function() {
var jimg = $(this);
var img_width = this.org_width;
var img_height = this.org_height;
if(!img_width) {
var img_width = jimg.attr('width');
var img_height = jimg.attr('height');
this.org_width = img_width;
this.org_height = img_height;
}
if(img_width > jmessage_width) {
if(this.tagName == 'IMG') {
jimg.width(jmessage_width);
jimg.css('height', 'auto');
jimg.css('cursor', 'pointer');
jimg.on('click', function() {
});
} else {
jimg.width(jmessage_width);
var height = (img_height / img_width) * jimg.width();
jimg.height(height);
}
}
});
});
}
function resize_table() {
$('div.message').each(function() {
var jdiv = $(this);
jdiv.find('table').addClass('table').wrap('<div class="table-responsive"></div>');
});
}
$(function() {
resize_image();
resize_table();
$(window).on('resize', resize_image);
});
var jmessage = $('#message');
jmessage.on('focus', function() {if(jmessage.t) { clearTimeout(jmessage.t); jmessage.t = null; } jmessage.css('height', '6rem'); });
jmessage.on('blur', function() {jmessage.t = setTimeout(function() { jmessage.css('height', '2.5rem');}, 1000); });
$('#nav li[data-active="fid-1"]').addClass('active');
</script>
