<asp:ListView ID="lvwCoreConfigureData" runat="server" DataKeyNames="Course_Config_Id" OnItemCommand="lvwCore_Config_ItemCommand" OnItemDataBound="lvwCore_Config_ItemDataBound">
<LayoutTemplate>
<table class="table mobile-stacked mb-0">
<thead>
<tr role="row">
<th style="width: 240px">
<asp:Label runat="server" Text="<%$Lang:Resource.Core_Config_Course %>"></asp:Label>
</th>
</tr>
</thead>
<tbody>
<tr runat="server" id="itemPlaceholder" />
</tbody>
</table>
</LayoutTemplate>
<ItemTemplate>
<tr role="row">
<td data-th="Name">
<asp:DropDownList ID="ConfigCourseName" runat="server" AutoPostBack="true" CssClass="form-control" OnSelectedIndexChanged="ConfigCourseName_SelectedIndexChanged"></asp:DropDownList>
</td>
</tr>
</ItemTemplate>
</asp:ListView>
2。この方法は、編集モード中にドロップダウンへのデータバインディングを提供します
protected void lvwCore_Config_ItemDataBound(Object sender, ListViewItemEventArgs e)
{
if (e.Item.ItemType == ListViewItemType.DataItem)
{
ListViewDataItem dataItem = (ListViewDataItem)e.Item; // load one row item
var CourseId = ((Edulearn.Model.CoreProgramme.CoreProgrammeConfigrationDM)dataItem.DataItem).CourseId; //
DropDownList ConfigCourseName = (e.Item.FindControl("ConfigCourseName") as DropDownList);
ConfigCourseName.DataSource = CoreProgrammeRepository.GetCoreProgrammeCourseList(TimeZoneId, new { Name = "TEST" }); // Get the data to dropdown (all data)
ConfigCourseName.DataTextField = "Name"; // assign here which one need to display
ConfigCourseName.DataValueField = "CourseId"; // assign here which one is the value for database save
ConfigCourseName.DataBind(); // bind the data
ConfigCourseName.SelectedValue = CourseId.ToString(); // Here selected values from database will be added
ConfigCourseName.Items.Insert(0, new ListItem("Please select")); // Default value only for display
}
}