这就是我想在这里实现的目标。用户单击按钮并显示引导模式弹出窗口。用户在模态弹出窗口的文本框中输入事件id值，我希望有关事件的信息显示在模态弹出窗口的其他字段中。
我在 txtEventId_TextChanged 事件下写了一个函数，我能够获得在事件id文本框中输入的值。我能够将该值传递给数据库，并从数据库中检索它的相应值。
我现在的问题是我无法在模态弹出窗口中显示这些数据。
以下是HTML代码：
<!-- Maintainenance Modal -->
<div class="modal fade" id="maintenanceModal" role="dialog" tabindex = -1 aria-labelledby="myModalLabel" aria-hidden="true" data-backdrop="false">
<div class="modal-dialog">
<!-- Maintaineance Modal content-->
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Maintain Event</h4>
</div>
<div class="row">
<div class="col-xs-2">
<div class ="form-group">
<label for="eventID" id="lblEventId">EventID</label>
</div>
</div>
<div class="col-xs-6">
<div class="form-group">
<asp:TextBox ID="txtEventId" runat="server" CssClass="form-control dialogtextbox" AutoPostBack="false" OnTextChanged="txtEventId_TextChanged"></asp:TextBox>
</div>
</div>
</div>
<asp:HiddenField ID="HiddenField1" runat="server" />
<div class="modal-body">
<div class="EventsIcons">
<div class ="form-group">
<label for="MaintainDropDown" id="MaintainEventLabel">Select The Event Type </label>
<select id="MaintainDropDown" runat="server" class="btn btn-default dropdown-toggle eventdropdown" data-toggle="dropdown" aria-expanded="true">
<option value="WorkAnniversary">WORKANNIVERSARY</option>
<option value="Birthday">BIRTHDAY</option>
<option value="Community">COMMUNITY</option>
<option value="FoodSafety">FOOD SAFETY</option>
<option value="Health&Safety">HEALTH & SAFETY</option>
<option value="Holiday">HOLIDAY</option>
<option value="Maintenance">MAINTENANCE</option>
<option value="QualityAudit">QUALITY AUDIT</option>
<option value="SocialEvent">SOCIAL EVENT</option>
<option value="Stat-Holiday">STAT-HOLIDAY</option>
<option value="Sustainability">SUSTAINABILITY</option>
<option value="TownHall">TOWN HALL</option>
<option value="Visitor">VISITOR</option>
<option value="Wellness">WELLNESS</option>
</select>
</div>
</div>
<div class="Description">
<label for="description" id="MaintainDescription">Description</label>
<textarea class="form-control" rows="5" id="maintainTxtDescription" name="eventdescription" runat="server"></textarea>
</div>
<div class="row">
<div class="col-xs-2">
<div class="form-group">
<label id="Label3">Start Time</label>
</div>
</div>
<div class='col-xs-6'>
<div class="form-group">
<div class='input-group date' id="maintainStartDate">
<asp:TextBox ID="maintainTxtStartDate" runat="server" CssClass="form-control dialogtextbox"></asp:TextBox>
<span class="input-group-addon">
<span class="glyphicon glyphicon-calendar"></span>
</span>
</div>
</div>
</div>
<div class="col-xs-4">
<div class="form-group">
<div class="input-group date" id="startTime">
<asp:TextBox ID="maintainTxtStartTime" runat="server" CssClass="form-control dialogtextbox"></asp:TextBox>
<span class="input-group-addon">
<span class="glyphicon glyphicon-time"></span>
</span>
</div>
</div>
</div>
</div>
<div class="row">
<div class="col-xs-2">
<div class="form-group">
<label id="Label4">End Time</label>
</div>
</div>
<div class="col-xs-6">
<div class="form-group">
<div class="input-group date" id="endDate">
<asp:TextBox ID="maintainTxtEndDate" runat="server" CssClass="form-control dialogtextbox"></asp:TextBox>
<span class="input-group-addon">
<span class="glyphicon glyphicon-calendar"></span>
</span>
</div>
</div>
</div>
<div class="col-xs-4">
<div class="form-group">
<div class="input-group date" id="endTime">
<asp:TextBox ID="maintainTxtEndTime" runat="server" CssClass="form-control dialogtextbox"></asp:TextBox>
<span class="input-group-addon">
<span class="glyphicon glyphicon-time"></span>
</span>
</div>
</div>
</div>
</div>
<div class="row">
<div class="col-xs-offset-1 col-xs-6">
<div class="form-group">
<asp:CheckBox ID="maintainChkBoxAllDayEvents" runat="server" CssClass="checkbox" Text="All Day Event" OnClick="document.getElementById('maintainTxtStartTime').disabled = this.checked;document.getElementById('maintainTxtEndTime').disabled = this.checked;" />
</div>
</div>
<div class="col-xs-offset-1 col-xs-4">
<div class="form-group">
<asp:Button ID="btnMaintainSubmit" runat="server" Text="SUBMIT"
CssClass="btn btn-group-justified btn-success" />
</div>
</div>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
这是代码背后的代码。
protected void txtEventId_TextChanged(object sender, EventArgs e)
{
BusinessLogicLayer BL = new BusinessLogicLayer();
EventId = Convert.ToInt32(txtEventId.Text);
try
{
DataTable dt = BL.BLGetEventDetails(EventId);
foreach (DataRow row in dt.Rows)
{
StartDate = row["StartDate"].ToString();
EndDate = row["EndDate"].ToString();
StartTime = row["StartTime"].ToString();
EndTime = row["EndTime"].ToString();
EventDescription = row["EventDescription"].ToString();
EventType = row["EventType"].ToString();
if (StartDate.Equals(""))
{
MessageBox.Show("EventId Does Not Exists");
maintainTxtStartDate.Text = "";
maintainTxtStartTime.Text = "";
maintainTxtEndDate.Text = "";
maintainTxtEndTime.Text = "";
MaintainDropDown.Disabled = true;
}
else
{
maintainTxtStartDate.Text = StartDate;
maintainTxtStartTime.Text = StartTime;
maintainTxtEndDate.Text = EndDate;
maintainTxtEndTime.Text = EndTime;
MaintainDropDown.Value = EventType;
maintainTxtDescription.InnerText = EventDescription;
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "txtEventId_TextChanged", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
如果我为txtEventId指定了 AutoPostBack =＆＃34; true＆＃34; ，那么在我输入值并点击回车后，弹出窗口会从屏幕上消失。如果我设置 AutoPostBack =＆＃34; false＆＃34; ，则不会填充值，因为控件不会转到 txtEventId_TextChanged 功能。我不想设置AutoPostBack =＆＃34; true＆＃34;因为在回发期间整个页面将重新加载并且模态弹出窗口将消失。我尝试为它设置scriptmanager和updatepanel，但由于我已经在Default.aspx页面中添加了另一个现有的scriptmanager和updatepanel，我无法为其添加新的。
请让我知道我做错了什么以及如何纠正这个问题。非常感谢您的指导。
答案 0 :(得分：0)
您有两种选择：
在方法结束时使用RegisterStartupScript将JS代码发送到客户端，您将把调用发送到您的模态
ScriptManager.RegisterStartupScript(this, typeof(Page), "callModal",
"$('#maintenanceModal').modal();", true);
这是实现目标的最简单方法
您可以使用PageMethods返回包含您想要显示的值的JSON，这样您就不需要进行回发，并且您将获得所需的信息。请参阅requirements and how to use PageMethods