简单实现C#CheckBox单选的相关功能
DataGrid中加入CheckBox,并实现c# CheckBox单选原理就是用js遍列所有CheckBox把所有CheckBox设为未被选中,然后在把单击的CheckBox设为选中。
以下是c# CheckBox单选的实现方法：
aspx文件：
- <%@ page language="c#" codebehind="webform1.aspx.cs" autoeventwireup="false" inherits="datagridcheck.webform1" %>
- >
</strong>webform1<strong> title></strong> </li> <li><strong><meta</strong> content="microsoft visual studio .net 7.1" name="generator"<strong>></strong> </li> <li><strong><meta</strong> content="c#" name="code_language"<strong>></strong> </li> <li><strong><meta</strong> content="javascript" name="vs_defaultclientscript"<strong>></strong> </li> <li><strong><meta</strong> content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetschema"<strong>></strong> </li> <li><strong><script</strong> language="javascript"<strong>></strong> </li> <li>function setcheckboxstate() </li> <li>{ </li> <li>var dom=document.all; </li> <li>var el=event.srcelement; </li> <li>if(el.tagname=="input"&&el.type.tolowercase()=="checkbox") </li> <li>{ </li> <li>for(i=0;i<strong><dom.length</strong>;i++) </li> <li>{ </li> <li>if(dom[i].tagname=="input"&&dom[i].type.tolowercase()=="checkbox") </li> <li>{ </li> <li>dom[i].checked=false; </li> <li>} </li> <li>} </li> <li>} </li> <li>el.checked=!el.checked; </li> <li>} </li> <li><strong> script></strong> </li> <li><strong> head></strong> </li> <li><strong><body</strong> ms_positioning="gridlayout"<strong>></strong> </li> <li><strong><form</strong> id="form1" method="post" runat="server"<strong>></strong> </li> <li><strong><font</strong> face="宋体"<strong>></strong> </li> <li><strong><asp:datagrid</strong> id="dg" style="z-index: 101; left: 168px; position: absolute; top: 40px" runat="server" </li> <li>width="440px" autogeneratecolumns="false"<strong>></strong> </li> <li><strong><columns></strong> </li> <li><strong><asp:templatecolumn></strong> </li> <li><strong><itemtemplate></strong> </li> <li><strong><asp:checkbox</strong> id="chkexport" runat="server"<strong>> asp:checkbox></strong> </li> <li><strong> itemtemplate></strong> </li> <li><strong> asp:templatecolumn></strong> </li> <li><strong><asp:boundcolumn</strong> datafield="integervalue"<strong>> asp:boundcolumn></strong> </li> <li><strong><asp:boundcolumn</strong> datafield="stringvalue"<strong>> asp:boundcolumn></strong> </li> <li><strong><asp:boundcolumn</strong> datafield="currencyvalue"<strong>> asp:boundcolumn></strong> </li> <li><strong> columns></strong> </li> <li><strong> asp:datagrid><asp:button</strong> id="button1" style="z-index: 102; left: 168px; position: absolute; top: 8px" runat="server" </li> <li>text="显示内容"<strong>> asp:button> font> form></strong> </li> <li><strong> body></strong> </li> <li><strong> html></strong> </li> </ol></pre><p>以下是cs文件</p><pre> <ol> <li>using system; </li> <li>using system.collections; </li> <li>using system.componentmodel; </li> <li>using system.data; </li> <li>using system.drawing; </li> <li>using system.web; </li> <li>using system.web.sessionstate; </li> <li>using system.web.ui; </li> <li>using system.web.ui.webcontrols; </li> <li>using system.web.ui.htmlcontrols; </li> <li>namespace datagridcheck </li> <li>{ </li> <li>/// <strong><summary></strong> </li> <li>/// webform1 的摘要说明。 </li> <li>/// <strong> summary></strong> </li> <li>public class webform1 : system.web.ui.page </li> <li>{ </li> <li>protected system.web.ui.webcontrols.button button1; </li> <li>protected system.web.ui.webcontrols.datagrid dg; </li> <li>private void page_load(object sender, system.eventargs e) </li> <li>{ </li> <li>// 在此处放置用户代码以初始化页面 </li> <li>if (!page.ispostback) </li> <li>{ </li> <li>dg.datasource= createdatasource() ; </li> <li>dg.databind(); </li> <li>} </li> <li>} </li> <li>icollection createdatasource() </li> <li>{ </li> <li>datatable dt = new datatable(); </li> <li>datarow dr; </li> <li>dt.columns.add(new datacolumn("integervalue", typeof(int32))); </li> <li>dt.columns.add(new datacolumn("stringvalue", typeof(string))); </li> <li>dt.columns.add(new datacolumn("currencyvalue", typeof(double))); </li> <li>for (int i = 0; i <strong><</strong> <strong>9</strong>; i++) </li> <li>{ </li> <li>dr = dt.newrow(); </li> <li>dr[0] = i; </li> <li>dr[1] = "item " + i.tostring(); </li> <li>dr[2] = 1.23 * (i + 1); </li> <li>dt.rows.add(dr); </li> <li>} </li> <li>dataview dv = new dataview(dt); </li> <li>return dv; </li> <li>} </li> <li>#region web 窗体设计器生成的代码 </li> <li>override protected void oninit(eventargs e) </li> <li>{ </li> <li>// </li> <li>// codegen: 该调用是 asp.net web 窗体设计器所必需的。 </li> <li>// </li> <li>initializecomponent(); </li> <li>base.oninit(e); </li> <li>} </li> <li>/// <strong><summary></strong> </li> <li>/// 设计器支持所需的方法 - 不要使用代码编辑器修改 </li> <li>/// 此方法的内容。 </li> <li>/// <strong> summary></strong> </li> <li>private void initializecomponent() </li> <li>{ </li> <li>this.dg.itemdatabound += new system.web.ui.webcontrols.datagriditemeventhandler(this.dg_itemdatabound); </li> <li>this.button1.click += new system.eventhandler(this.button1_click); </li> <li>this.load += new system.eventhandler(this.page_load); </li> <li>} </li> <li>#endregion </li> <li>private void button1_click(object sender, system.eventargs e) </li> <li>{ </li> <li>system.web.ui.webcontrols.checkbox chkexport; </li> <li>foreach (datagriditem dgitem in dg.items) </li> <li>{ </li> <li>chkexport=(checkbox)dgitem.findcontrol("chkexport"); </li> <li>if(chkexport.checked) </li> <li>{ </li> <li>response.write("<strong><script></strong>alert("+dgitem.cells[2].text+"和"+dgitem.cells[3].text+")<strong> script></strong>"); </li> <li>} </li> <li>} </li> <li>} </li> <li>private void dg_itemdatabound(object sender, system.web.ui.webcontrols.datagriditemeventargs e) </li> <li>{ </li> <li>if(e.item.itemindex<strong><0</strong>) return; </li> <li>if(e.item.itemtype == listitemtype.item || e.item.itemtype == listitemtype.alternatingitem) </li> <li>{ </li> <li>system.web.ui.webcontrols.checkbox chkexport; </li> <li>chkexport=(checkbox)e.item.findcontrol("chkexport"); </li> <li>chkexport.attributes.add("onclick","setcheckboxstate()"); </li> <li>e.item.attributes.add("onmouseover","currentcolor=this.style.backgroundcolor;this.style.backgroundcolor=48d1cc"); </li> <li>e.item.attributes.add("onmouseout","this.style.backgroundcolor=currentcolor"); </li> <li>} </li> <li>} </li> <li>} </li> <li>} </li> </ol></pre><p>以上就是笔者实现C# CheckBox单选事件的方法，希望能给大家带来帮助。</p> <p> 网站标题：<a href="http://www.csdahua.cn/qtweb/news1/358501.html">简单实现C#CheckBox单选的相关功能</a> <br> 本文链接：<a href="http://www.csdahua.cn/qtweb/news1/358501.html">http://www.csdahua.cn/qtweb/news1/358501.html</a> </p> <p> 网站建设、网络推广公司-快上网，是专注品牌与效果的网站制作，网络营销seo公司；服务项目有等 </p> <p class="adpic"> <a href="https://www.cdcxhl.com/service/ad.html" target="_blank" class="ad">广告</a> <a href="" target="_blank" class="adimg"><img src=""></a> </p> <p class="copy"> 声明：本网站发布的内容（图片、视频和文字）以用户投稿、用户转载内容为主，如果涉及侵权请尽快告知，我们将会在第一时间删除。文章观点不代表本网站立场，如需处理请联系客服。电话：028-86922220；邮箱：631063699@qq.com。内容未经允许不得转载，或转载时需注明来源： <a href="http://www.csdahua.cn/" target="_blank">快上网</a> </p> </div> <div class="newsmorelb"> <p>成都快上网为您推荐相关内容</p> <ul> <li> <a href="/qtweb/news0/358500.html">开展专业的红蓝演练Part.4：论红队的自动化方法</a> </li><li> <a 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