【发布时间】:2014-09-10 01:17:03
【问题描述】:
我有一个 RadListBox,它有一个显示 display_text 的 itemTemplate。我正在使用 SQLDataSource 从表中获取所有数据。我想知道如何在单击列表框项目并触发 SelectedIndexChanged 后从 C# 端获取 ID 以更改 TextBox.Text。 我的 SQL 数据源有一个名为 ID 的列,我想获取该 ID 并将其设置在 _carID 中。类似 int _carID = LBcarDetail.FindControl("ID").Value; //(这是不正确的,只是可能使用的类似内容的示例,但我不确定确切的语法。)
<telerik:RadListBox ID="LBcarDetail" runat="server" DataSourceID="SqlDataSource1" AllowTransfer="true" AutoPostBackOnTransfer="true" OnSelectedIndexChanged="LBcarDetail_SelectedIndexChanged"
Height="700px" SelectionMode="Multiple" Width="615px" Skin="Outlook" EnableDragAndDrop="true" AllowReorder="true" AppendDataBoundItems="true" AutoPostBack="true">
<ButtonSettings VerticalAlign="Top" ShowTransferAll="false" ShowTransfer="false" ShowDelete="true"></ButtonSettings>
<ItemTemplate>
<div style="border: 1px solid black; margin-right: auto; margin-left: auto;">
<ul class="details1" style="list-style: none;">
<li>
<label>
display_text:
</label>
<span>
<%# Eval("display_text") %></span>
</li>
</ul>
</div>
</ItemTemplate>
</telerik:RadListBox>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:iConnectionString %>"
SelectCommand="SELECT * FROM [intranet].[dbo].[TableItems] ORDER BY sort_order"></asp:SqlDataSource>
我正在尝试使用以下内容更改显示文本:
protected void LBcarDetail_SelectedIndexChanged(object sender, EventArgs e)
{
//int _carID = 2; //hardcoded 2 will change display text to the correct value for item with ID of 2
int _carID; //here is where I am trying to grab the ID of the listBox item that was selected
string _displayText;
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["iConnectionString"].ToString()))
using (SqlCommand comm = new SqlCommand("sp_car_detail_get", conn))
using (SqlDataAdapter adapter = new SqlDataAdapter(comm))
{
comm.CommandType = CommandType.StoredProcedure;
comm.Parameters.Add(new SqlParameter("@id", id));
DataSet ds = new DataSet();
adapter.Fill(ds);
foreach (DataRow r in ds.Tables[0].Rows)
{
_displayText = r["display_text"].ToString();
tbDisplayText.Text = _displayText;
}
}
}
【问题讨论】:
标签: c# asp.net listbox telerik selectedindexchanged