asp.net repeater in update panel databind outside page_load - asp.net

Question

I have repeater in updatePanel asp.net. It works fine when I run databind() in Page_load method. But when databind() is called by some event outside Page_load, repeater cleared. Databind() does not work in this case! What can be reason for this?
this is code ...
this works:
protected void Page_Load(object sender, EventArgs e)
{
........
populateCalendar(Int32.Parse(DDL_YearsList.SelectedValue), Int32.Parse(DDL_MonthsList.SelectedValue), Int32.Parse(DDL_EmployeesList.SelectedValue));
}
private void populateCalendar(int year, int month, int idEmploee)
{
.......
monthShower.DataSource = listWeeks;
monthShower.DataBind();
}
protected void DDL_EmployeesList_SelectedIndexChanged(object sender, EventArgs e)
{
//populateCalendar(Int32.Parse(DDL_YearsList.SelectedValue), Int32.Parse(DDL_MonthsList.SelectedValue), Int32.Parse(DDL_EmployeesList.SelectedValue));
}
this does not work, when DDL_EmployeesList_SelectedIndexChanged fired:
protected void Page_Load(object sender, EventArgs e)
{
........
// populateCalendar(Int32.Parse(DDL_YearsList.SelectedValue), Int32.Parse(DDL_MonthsList.SelectedValue), Int32.Parse(DDL_EmployeesList.SelectedValue));
}
private void populateCalendar(int year, int month, int idEmploee)
{
.......
monthShower.DataSource = listWeeks;
monthShower.DataBind();
}
protected void DDL_EmployeesList_SelectedIndexChanged(object sender, EventArgs e)
{
populateCalendar(Int32.Parse(DDL_YearsList.SelectedValue), Int32.Parse(DDL_MonthsList.SelectedValue), Int32.Parse(DDL_EmployeesList.SelectedValue));
}
<asp:Repeater id ="monthShower" runat ="server"> <ItemTemplate> <custom:DayID="Day1" runat ="server" TblDay =<%# DataBinder.Eval(Container.DataItem, "Monday") %>></custom:Day> </ItemTemplate> </asp:Repeater>

Answer 1

So i did a small test and posted the code
Html:
<div id="test">
<asp:DropDownList runat="server" ID="DropDownList1" AutoPostBack="true" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged"></asp:DropDownList>
<asp:UpdatePanel runat="server">
<ContentTemplate>
<table>
<asp:Repeater runat="server" ID="repTeste" OnItemDataBound="repTeste_ItemDataBound">
<ItemTemplate>
<tr>
<td runat="server" id="tdTeste">
</td>
</tr>
</ItemTemplate>
</asp:Repeater>
</table>
</ContentTemplate>
</asp:UpdatePanel>
</div>
C# - I used pop() in my pageLoad just to populate the ddl:
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
populateCalendar(DropDownList1.SelectedValue, 2, 3);
}
private void populateCalendar(String year, int month, int idEmploee)
{
List<String> lis = new List<String>();
lis.Add(year);
repTeste.DataSource = lis;
repTeste.DataBind();
}
private void pop()
{
ListItem li = new ListItem("1", "1");
li.Attributes.Add("title", "1");
DropDownList1.Items.Add(li);
li = new ListItem("2", "2");
li.Attributes.Add("t2itle", "2");
DropDownList1.Items.Add(li);
li = new ListItem("3", "3");
li.Attributes.Add("ti3tle", "3");
DropDownList1.Items.Add(li);
}
protected void repTeste_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
String inte = (String)e.Item.DataItem;
HtmlTableCell td = (HtmlTableCell)e.Item.FindControl("tdTeste");
td.InnerText = inte;
}
it updates correctly.
Since you didn't post your html and the fact that someone deleted my post, i posted my code here for you, you can use it to compare it or you can post your Html and ill give it a look.