[英]Event handler can't be triggered in ASP.NET app
這是TextBox,它是事件處理程序:
<asp:Repeater ID="rpt_users" runat="server" OnItemCommand="rpt_users_ItemCommand" OnItemDataBound="rpt_users_ItemDataBound"><ItemTemplate>
<tr class="c0">
<td>
<asp:TextBox runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "daysleft") %>' OnTextChanged="Unnamed_TextChanged" AutoPostBack="true"/>
</td>
</tr>
</ItemTemplate></asp:Repeater>
protected void Unnamed_TextChanged(object sender, EventArgs e)
{
var repeaterItem = (sender as TextBox).NamingContainer as RepeaterItem;
var hiddenFieldKey = repeaterItem.FindControl("LoginField") as HiddenField;
DataTable data = ViewState["Data"] as DataTable;
var dataRow = data.Rows.Find(hiddenFieldKey.Value);
var userName = (dataRow[0].ToString()).Replace("'", "''");
... //more actions below
}
現在無法觸發此事件處理程序。 有時以前工作正常,但是最近我從代碼隱藏中刪除了Page_Init事件處理程序,並用Page_Load事件處理程序替換了它。 這些事實可以聯系在一起嗎? 應該滿足哪些條件才能使此處理程序可以訪問?
轉發器數據綁定應位於內部,而不是回發條件
public class Test
{
public string daysleft { get; set; }
}
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindRepeaterItems();
}
}
private void BindRepeaterItems()
{
var items = new List<Test>
{
new Test {daysleft = "Deepu"},
new Test {daysleft = "Darsh"}
};
rpt_users.DataSource = items;
rpt_users.DataBind();
}
protected void Unnamed_TextChanged(object sender, EventArgs e)
{
var repeaterItem = (sender as TextBox).NamingContainer as RepeaterItem;
var hiddenFieldKey = repeaterItem.FindControl("LoginField") as HiddenField;
}
}
<asp:Repeater ID="rpt_users" runat="server">
<ItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "daysleft") %>' OnTextChanged="Unnamed_TextChanged" AutoPostBack="true"/><br />
</ItemTemplate>
</asp:Repeater>
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