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> <br> 文章标题：简单实现C#CheckBox单选的相关功能 <br> 标题链接：<a href="http://xwwzsj.com/article/djhsocc.html">http://xwwzsj.com/article/djhsocc.html</a> </div> </div> <div class="other"> <h3>其他资讯</h3> <ul> <li> <a href="/article/coshceg.html">管理详解(linux系统内存)</a> </li><li> <a href="/article/coshcic.html">Redis主从切换困难苦恼（redis没法切换主从）</a> </li><li> <a href="/article/coshcei.html">稳捷网络为医疗行业应用安全保驾护航</a> </li><li> <a href="/article/coshces.html">网站被提示存在风险怎么办？（网站无法访问检测出来说我们网站违规）</a> </li><li> <a href="/article/coshdsd.html">Linux下快速修改键盘布局的技巧（linux修改键盘布局）</a> </li> </ul> </div> </div> <div class="f_service_con"> <div class="h_fumin"> <div class="h_fumin_lei"> <div class="h_fumin_lei_tu"><img src="/Public/Home/images/f_service01.png"></div> <p>售后响应及时</p><span>7×24小时客服热线</span> </div> <div class="h_fumin_lei"> <div 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onclick="this.src=this.src + '?'" width="100" height="40"></span> </li> <li class="clearfix"> <dd class="submit"><input name='submit' type="submit" value="提交需求"></dd> </li> </form> </div> </div> </div> <div id="bg" class="bg" style="display:none;"></div> <div id='popIframe' class='popIframe' frameborder='0'></div> <script> //提交需求选项 $(document).ready(function (e) { $(".mess_form").submit(function () { if ($("#gsname").val() == "") { alert("请填写您的公司名称！"); $("#gsname").focus(); return false; } if ($("#gemail").val() == "") { alert("请填写您的邮箱"); $("#gemail").focus(); return false; } if ($("#name").val() == "") { alert("请填写您的姓名！"); $("#name").focus(); return false; } if ($("#tel").val() == "") { alert("请填写您的电话！"); $("#tel").focus(); return false; } if ($("#hobby").val() == "") { alert("请选择您需要的服务！"); $("#hobby").focus(); return false; } if ($("#hobby2").val() == "") { alert("请选择您关注的地方！"); $("#hobby2").focus(); return false; } if ($("#hobby3").val() == "") { alert("请选择您的预算！"); $("#hobby3").focus(); return false; } if ($("#code").val() == "") { alert("请填写正确的验证码！"); $("#code").focus(); return false; } }); }); </script> <script language="javascript" type="text/javascript"> //提交需求窗口 function showDiv() { document.getElementById('popDiv').style.display = 'block'; document.getElementById('popIframe').style.display = 'block'; document.getElementById('bg').style.display = 'block'; } function closeDiv() { document.getElementById('popDiv').style.display = 'none'; document.getElementById('bg').style.display = 'none'; document.getElementById('popIframe').style.display = 'none'; } </script> <script type="text/javascript" src="/Public/Home/js/scrolltopcontrol.js"></script> <script type="text/javascript" src="/Public/Home/js/su_new.js"></script> </body> </html> <script> $(".con img").each(function(){ var src = $(this).attr("src"); //获取图片地址 var str=new RegExp("http"); var result=str.test(src); if(result==false){ var url = "https://www.cdcxhl.com"+src; //绝对路径 $(this).attr("src",url); } }); window.onload=function(){ document.oncontextmenu=function(){ return false; } } </script>
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