并非总是触发Radiobuttonlist事件
作者：互联网
我有一个带有selectedindexchanged事件的单选按钮列表,该事件更新了搜索功能.其中一项是在aspx中指定的,其他项是附加的数据绑定项.无论我将其设置为默认值,该项目都不会触发该事件.所有其他项目都会触发该事件.另外,似乎在选择“死”项之后,该事件根本不会触发.
如何找到错误并纠正？这是当前代码.
编辑：对不起,如果简短版本具有误导性.我不确定要包括什么.这是整个页面.
所有aspx：
<%@ Page Language="C#" MasterPageFile="~/MSDS/MSDS.master" EnableEventValidation="false"
AutoEventWireup="true" CodeFile="SearchMSDS.aspx.cs" Inherits="MSDS_ByDept" Title="NCLWeb - Search MSDS" %>
<%@ Register Assembly="SqlWhereBuilder" Namespace="UNLV.IAP.WebControls" TagPrefix="cc1" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc2" %>
<asp:Content ID="Content1" ContentPlaceHolderID="PageContent" runat="Server">
<h2>
<asp:Label ID="lblTitle" runat="server">Search Active MSDS</asp:Label></h2>
<table class="style1">
<tr>
<td style="width: 435px" valign="top">
<asp:Panel runat="server" ID="pnlSearch" DefaultButton="btnSearch">
<asp:TextBox ID="txtSimpleSearch" runat="server" Width="262px"></asp:TextBox>
<asp:Button ID="btnSearch" runat="server" Text="Search" Width="96px" OnClick="btnSearch_Click" />
<br />
<asp:LinkButton ID="btnAdvSearch" runat="server" OnClick="btnAdvSearch_Click" Font-Size="Small">Show Advanced Search</asp:LinkButton>
</asp:Panel>
<asp:Panel ID="pnlAdvSearch" runat="server" Width="635px" DefaultButton="btnRunAdvSearch">
<asp:Button ID="btnRunAdvSearch" runat="server" OnClick="btnRunAdvSearch_Click" Text="Advanced Search" />
<cc1:SqlWhereBuilder ID="SqlWhereBuilder1" runat="server" ClientCodeLocation="../JavaScripts/SqlWhereBuilder.js"
FieldsFile="../ConfigFiles/SearchMSDS.config" OperatorListsFile="../ConfigFiles/SearchMSDS.config"
ValueEntryFile="../ConfigFiles/SearchMSDS.config">
</cc1:SqlWhereBuilder>
<br />
<br />
</asp:Panel>
<cc2:CollapsiblePanelExtender ID="pnlAdvSearch_CollapsiblePanelExtender" runat="server"
CollapseControlID="btnAdvSearch" Collapsed="True" Enabled="True" ExpandControlID="btnAdvSearch"
TargetControlID="pnlAdvSearch">
</cc2:CollapsiblePanelExtender>
</td>
<td valign="top">
<asp:Panel ID="pnlStatus" runat="server">
<asp:RadioButtonList ID="rblStatus" runat="server" AppendDataBoundItems="True"
AutoPostBack="True" DataSourceID="SqlDataSource1" DataTextField="DisplayValue"
DataValueField="Value" OnSelectedIndexChanged="RadioButtonList1_SelectedIndexChanged"
RepeatDirection="Horizontal" CellPadding="3" CellSpacing="3"
CausesValidation="True" Visible="True">
<asp:ListItem Selected="True">All</asp:ListItem>
</asp:RadioButtonList>
</asp:Panel>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ConnectionStrings:NCLWebConnectionString %>"
SelectCommand="getOptionList" SelectCommandType="StoredProcedure">
<SelectParameters>
<asp:Parameter DefaultValue="msds_Status" Name="ListName" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
<asp:UpdatePanel runat="server" ID="upd2">
<ContentTemplate>
<asp:Button ID="btnExport" runat="server" Text="Export Results"
OnClick="btnExport_Click1" UseSubmitBehavior="False" />
</ContentTemplate>
</asp:UpdatePanel>
</td>
</tr>
</table>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:UpdateProgress ID="UpdateProgress1" runat="server" DisplayAfter="100" DynamicLayout="False">
<ProgressTemplate>
<img src="../images/loading.gif" alt="Loading..." style="text-align: center" />
<asp:Label ID="lblProgress" runat="server"></asp:Label></ProgressTemplate>
</asp:UpdateProgress>
<asp:GridView ID="gridResults" runat="server" DataSourceID="sqlMSDS" OnRowDataBound="GridView1_RowDataBound"
AllowPaging="True" PageSize="25" AllowSorting="True" OnSelectedIndexChanged="gridResults_SelectedIndexChanged"
AutoGenerateColumns="False" EmptyDataText="No matching MSDS Sheets." OnSorted="gridResults_Sorted">
<Columns>
<asp:BoundField DataField="ID" HeaderText="ID" InsertVisible="False" Visible="false"
ReadOnly="True" SortExpression="ID" />
<asp:BoundField DataField="ChemicalTitle" HeaderText="ChemicalTitle" SortExpression="ChemicalTitle" />
<asp:BoundField DataField="Manufacturer" HeaderText="Manufacturer" SortExpression="Manufacturer" />
<asp:BoundField DataField="UsageDept" HeaderText="UsageDept" SortExpression="UsageDept" />
<asp:BoundField DataField="Notes" HeaderText="Notes" SortExpression="Notes" />
<asp:BoundField DataField="Health" HeaderText="Health" visible="false" SortExpression="Health" />
<asp:BoundField DataField="Fire" HeaderText="Fire" visible="false" SortExpression="Fire" />
<asp:BoundField DataField="Reactivity" HeaderText="Reactivity" visible="false" SortExpression="Reactivity" />
<asp:BoundField DataField="DateUpdated" HeaderText="DateUpdated" SortExpression="DateUpdated" />
</Columns>
<SelectedRowStyle BackColor="Yellow" />
</asp:GridView>
<asp:SqlDataSource ID="sqlMSDS" OnSelected="sqlMSDS_OnSelected" runat="server" ConnectionString="<%$ConnectionStrings:NCLWebConnectionString %>"
SelectCommand="SELECT [ID]
,[ChemicalTitle]
,[Manufacturer]
,[UsageDept]
,[Notes]
,[Health]
,[Fire]
,[Reactivity]
,[DateUpdated]
FROM [msds_Sheets]" OnSelecting="sqlMSDS_Selecting"></asp:SqlDataSource>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnSearch" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="btnRunAdvSearch" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="rblStatus" EventName="SelectedIndexChanged" />
<asp:AsyncPostBackTrigger ControlID="btnExport" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
<br />
</asp:Content>
和代码背后：
List<String> safeWords = new List<String>();
protected void Page_Load(object sender, EventArgs e)
{
pnlStatus.Visible = User.IsInRole("msds_Admin");
gridResults.DataKeyNames = new String[] { "id" };
txtSimpleSearch.Focus();
if (!IsPostBack)
{
safeWords.Add("delete");
safeWords.Add("insert");
safeWords.Add("update");
safeWords.Add("set");
safeWords.Add("exec");
safeWords.Add("N'");
sqlMSDS.SelectCommand += " Where status = 0 ";
Session["Sql"] = sqlMSDS.SelectCommand;
try
{
Session["OriginalSQL"] = sqlMSDS.SelectCommand.Remove(sqlMSDS.SelectCommand.IndexOf("Where"));
}
catch (Exception)
{
Session["OriginalSQL"] = sqlMSDS.SelectCommand;
}
}
}
protected void RadioButtonList1_SelectedIndexChanged(object sender, EventArgs e)
{
((Label)UpdateProgress1.FindControl("lblProgress")).Text = "Searching...";
if (btnSearch.Visible)
{
btnSearch_Click(null, null);
if (RadioButtonList1.SelectedValue != "All")
{
sqlMSDS.SelectCommand += " And Status = " + RadioButtonList1.SelectedValue;
}
else
{
//Somehow force the grid to research using no status parameter
sqlMSDS.SelectCommand = Session["Sql"].ToString();
}
}
else
{
btnRunAdvSearch_Click(null, null);
if (RadioButtonList1.SelectedValue != "All")
{
if (sqlMSDS.SelectCommand.Contains("Where"))
{
sqlMSDS.SelectCommand += " And Status = " + RadioButtonList1.SelectedValue;
}
else
{
sqlMSDS.SelectCommand += " Where Status = " + RadioButtonList1.SelectedValue;
}
}
else
{
//Somehow force the grid to research using no status parameter
sqlMSDS.SelectCommand = Session["Sql"].ToString();
}
}
}
解决方法:
是否将此RadioButtonList指定为另一个UpdatePanel的AsyncPostBackTrigger？如果是这样,请检查以下链接：CheckedChanged event not firing on a radio button within UpdatePanel
我已经重现了该行为,并使用以下脚本对此进行了修复：
$(function () {
$("input[type='radio']:first", $("#<%= RadioButtonList1.ClientID %>")).attr("checked", true);
});
如果您无法使用jQuery,请尝试以下javascript：
window.onload = function () {
window.document.getElementById("<%= RadioButtonList1.ClientID %>_0").checked = true;
};
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ClientScript.RegisterStartupScript(this.GetType(), "RadioButtonListDefaultValue", String.Format("window.document.getElementById('{0}_0').checked = true;", RadioButtonList1.ClientID), true);
}
}
标签：radiobuttonlist,asp-net,c,radio-button 来源： https://codeday.me/bug/20191102/1992634.html