今天就跟大家聊聊有關(guān)C# 中怎么利用CheckBox實(shí)現(xiàn)單選功能，可能很多人都不太了解，為了讓大家更加了解，小編給大家總結(jié)了以下內(nèi)容，希望大家根據(jù)這篇文章可以有所收獲。
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DataGrid中加入CheckBox,并實(shí)現(xiàn)c# CheckBox單選原理就是用js遍列所有CheckBox把所有CheckBox設(shè)為未被選中,然后在把單擊的CheckBox設(shè)為選中。
aspx文件：
<%@ page language="c#" codebehind="webform1.aspx.cs" autoeventwireup="false" inherits="datagridcheck.webform1" %>webform1title> <meta content="microsoft visual studio .net 7.1" name="generator"> <meta content="c#" name="code_language"> <meta content="javascript" name="vs_defaultclientscript"> <meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetschema"> <script language="javascript"> function setcheckboxstate() { var dom=document.all; var el=event.srcelement; if(el.tagname=="input"&&el.type.tolowercase()=="checkbox") { for(i=0;i<dom.length;i++) { if(dom[i].tagname=="input"&&dom[i].type.tolowercase()=="checkbox") { dom[i].checked=false; } } } el.checked=!el.checked; } script> head> <body ms_positioning="gridlayout"> <form id="form1" method="post" runat="server"> <font face="宋體"> <asp:datagrid id="dg" style="z-index: 101; left: 168px; position: absolute; top: 40px" runat="server" width="440px" autogeneratecolumns="false"> <columns> <asp:templatecolumn> <itemtemplate> <asp:checkbox id="chkexport" runat="server">asp:checkbox> itemtemplate> asp:templatecolumn> <asp:boundcolumn datafield="integervalue">asp:boundcolumn> <asp:boundcolumn datafield="stringvalue">asp:boundcolumn> <asp:boundcolumn datafield="currencyvalue">asp:boundcolumn> columns> asp:datagrid><asp:button id="button1" style="z-index: 102; left: 168px; position: absolute; top: 8px" runat="server" text="顯示內(nèi)容">asp:button>font>form> body> html></pre><p>以下是cs文件</p><pre>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; namespace datagridcheck { /// <summary> /// webform1 的摘要說(shuō)明。 /// summary> public class webform1 : system.web.ui.page { protected system.web.ui.webcontrols.button button1; protected system.web.ui.webcontrols.datagrid dg; private void page_load(object sender, system.eventargs e) { // 在此處放置用戶代碼以初始化頁(yè)面 if (!page.ispostback) { dg.datasource= createdatasource() ; dg.databind(); } } icollection createdatasource() { datatable dt = new datatable(); datarow dr; dt.columns.add(new datacolumn("integervalue", typeof(int32))); dt.columns.add(new datacolumn("stringvalue", typeof(string))); dt.columns.add(new datacolumn("currencyvalue", typeof(double))); for (int i = 0; i < 9; i++) { dr = dt.newrow(); dr[0] = i; dr[1] = "item " + i.tostring(); dr[2] = 1.23 * (i + 1); dt.rows.add(dr); } dataview dv = new dataview(dt); return dv; } #region web 窗體設(shè)計(jì)器生成的代碼 override protected void oninit(eventargs e) { // // codegen: 該調(diào)用是 asp.net web 窗體設(shè)計(jì)器所必需的。 // initializecomponent(); base.oninit(e); } /// <summary> /// 設(shè)計(jì)器支持所需的方法 - 不要使用代碼編輯器修改 /// 此方法的內(nèi)容。 /// summary> private void initializecomponent() { this.dg.itemdatabound += new system.web.ui.webcontrols.datagriditemeventhandler(this.dg_itemdatabound); this.button1.click += new system.eventhandler(this.button1_click); this.load += new system.eventhandler(this.page_load); } #endregion private void button1_click(object sender, system.eventargs e) { system.web.ui.webcontrols.checkbox chkexport; foreach (datagriditem dgitem in dg.items) { chkexport=(checkbox)dgitem.findcontrol("chkexport"); if(chkexport.checked) { response.write("<script>alert("+dgitem.cells[2].text+"和"+dgitem.cells[3].text+")script>"); } } } private void dg_itemdatabound(object sender, system.web.ui.webcontrols.datagriditemeventargs e) { if(e.item.itemindex<0) return; if(e.item.itemtype == listitemtype.item || e.item.itemtype == listitemtype.alternatingitem) { system.web.ui.webcontrols.checkbox chkexport; chkexport=(checkbox)e.item.findcontrol("chkexport"); chkexport.attributes.add("onclick","setcheckboxstate()"); e.item.attributes.add("onmouseover","currentcolor=this.style.backgroundcolor;this.style.backgroundcolor=48d1cc"); e.item.attributes.add("onmouseout","this.style.backgroundcolor=currentcolor"); } } } }</pre><p>看完上述內(nèi)容，你們對(duì)C# 中怎么利用CheckBox實(shí)現(xiàn)單選功能有進(jìn)一步的了解嗎？如果還想了解更多知識(shí)或者相關(guān)內(nèi)容，請(qǐng)關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道，感謝大家的支持。</p> <br> 文章題目：C#中怎么利用CheckBox實(shí)現(xiàn)單選功能 <br> 網(wǎng)站地址：<a href="http://weahome.cn/article/jhiish.html">http://weahome.cn/article/jhiish.html</a> </div> </div> </div> <div id="squ6kqw" class="other container"> <h3>其他資訊</h3> <ul> <li> <a href="/article/pohhcc.html">Vue如何實(shí)現(xiàn)用戶自定義字段顯示數(shù)據(jù)</a> </li><li> <a href="/article/pohhdi.html">jsp中腳本是什么</a> </li><li> <a href="/article/pohhds.html">MongoDB數(shù)據(jù)庫(kù)學(xué)習(xí)</a> </li><li> <a href="/article/pohhos.html">在中python判斷類(lèi)型的方法</a> </li><li> <a href="/article/pohphj.html">怎么給KVM設(shè)置Linux虛擬網(wǎng)絡(luò)</a> </li> </ul> </div> <div id="squ6kqw" class="footer"> <div id="squ6kqw" class="foota container"> <div id="squ6kqw" class="foot_nav fl col-lg-8 col-md-8 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