我有一个“数据绑定”复选框列表，希望将选中的复选框项移到列表顶部。
我尝试搜索，但是所有解决方案都使用html复选框而不是asp复选框列表
这是我的复选框列表代码
<asp:CheckBoxList ID="CheckBoxList1" runat="server" DataSourceID="SqlDataSource2" DataTextField="SBrand" DataValueField="SBrand" AutoPostBack="True" SelectedIndexChanged="gvStock_SelectedIndexChanged" OnSelectedIndexChanged="CheckBoxList_SelectedIndexChanged" OnPageIndexChanging="gvStock_PageIndexChanging" CssClass="checkboxlist">
</asp:CheckBoxList>
您可以在CheckBoxList的SelectedIndexChanged事件中执行此操作。
<asp:CheckBoxList ID="CheckBoxList1" runat="server" AutoPostBack="true"
OnSelectedIndexChanged="CheckBoxList1_SelectedIndexChanged"></asp:CheckBoxList>
后面的代码
protected void CheckBoxList1_SelectedIndexChanged(object sender,EventArgs e)
{
//get the index of the last changed checkbox
int index = Convert.ToInt32(Request.Form["__EVENTTARGET"].Split('$').Last());
//find the correct listitem in the checkboxlist
ListItem item = CheckBoxList1.Items[index];
//if the item is already in first position do nothing
if (index == 0)
return;
//remove it from it's current position
CheckBoxList1.Items.RemoveAt(index);
//add the listitem at the top
CheckBoxList1.Items.Insert(0,item);
}
这可能不适用于DataSourceID。因此，如果不是这样，则必须从后面的代码开始将数据绑定到CheckBoxList：http://www.dotnetfox.com/articles/how-to-bind-data-to-checkboxlist-control-in-Asp-Net-using-C-Sharp-1042.aspx