如何检查点击按钮在GridView中列的复选框状态 [英] how to check status of checkboxes in gridview columns on click of button
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问题描述
T已在使用GridView的复选框列。在一个LinkButton的点击,就应该进行检查,在GridView的复选框被选中与否。如果没有选中复选框,然后它应该显示警报(检查的真皮休闲一张支票箱)。
T have used checkbox column in gridview. On click of a linkbutton, it should be checked that checkboxes in gridview are checked or not. If none check box is checked then it should display alert("Check at leat one check box").
推荐答案
我找到了答案。其工作...
I found the answer. and its working...
功能checkBoxselectedornot()
{
function checkBoxselectedornot() {
var frm=document.forms['aspnetForm'];
var flag=false;
for(var i=0;i<document.forms[0].length;i++)
{
if(document.forms[0].elements[i].id.indexOf('chkDownloadSelectedEvent')!=-1)
{
if(document.forms[0].elements[i].checked)
{
flag=true
}
}
}
if (flag==true)
{
return true
}else
{
alert('Please select at least one Event.')
return false
}
}
和girdview code是...
and girdview code is...
<asp:BoundField ItemStyle-Width ="100px" DataField ="EventStartDate" DataFormatString ="{0:g}" HeaderText ="<%$ Resources:stringsRes, ctl_EventList_StartDate %>" SortExpression ="EventStartDate" HtmlEncode ="true" ItemStyle-Wrap ="false" />
<asp:BoundField ItemStyle-Width="100px" DataField="EventDate" DataFormatString="{0:g}" HeaderText="<%$ Resources:stringsRes, ctl_EventList_Date %>" SortExpression="EventDate" HtmlEncode="true" ItemStyle-Wrap="false" />
<asp:ButtonField ItemStyle-Width="150px" ButtonType="Link" DataTextField="EventName" HeaderText="<%$ Resources:stringsRes, ctl_EventList_Event %>" SortExpression="EventName" CommandName="show_details" CausesValidation="false" />
<asp:BoundField DataField="EventLocation" HeaderText="<%$ Resources:stringsRes, ctl_EventList_Location %>" SortExpression="EventLocation" />
<asp:TemplateField HeaderText ="Select">
<ItemTemplate >
<asp:CheckBox ID="chkDownloadSelectedEvent" runat ="server" AutoPostBack ="false" Onclick="eachCheck();"/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<RowStyle Height="25px" />
<HeaderStyle Height="30px"/>
</asp:GridView>
和有一个链接按钮....
and there is a link button ....
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