I am trying to use the OnSelectionChanged in the DatePicker, but when I set the SelectedDateString OnSelectionChanged no longer works. The value itself would still change before creating adding the OnSelectionChanged value, the AutoPostbackOnSelect still takes place, and without the SelectedDateString the OnSelectionChanged works.

<asp:TemplateField HeaderText="Depart">
<EditItemTemplate>
<eo:DatePicker runat="server" id="DatePickerTravelArrivalDate" TitleLeftArrowHtml="" TitleRightArrowHtml=""
DayHeaderFormat="Short" OtherMonthDayVisible="False" DayCellWidth="31"
DayCellHeight="15" TitleFormat="MMMM, yyyy" Width="100px"
MinValidDate="2009-04-10" MaxValidDate="2009-04-13"
FirstMonth="2009-04-01" LastMonth="2009-04-01"
SelectedDateString='<%# Bind("TravelArrivalDate") %>'
OnSelectionChanged="DatePickerTravelArrivalDateGU_SelectionChanged" AutoPostbackOnSelect="true">
<SelectedDayStyle CssText="background-image:url('00040403');color:brown;"/>
<TodayStyle CssText="background-image:url('00040401');color:#1176db;"/>
<TitleArrowStyle CssText="cursor:hand;"/>
<DisabledDayStyle CssText="color:gray;"/>
<TitleStyle CssText="font-family:Verdana;font-size:8.75pt;padding-bottom:5px;padding-left:5px;padding-right:5px;padding-top:5px;"/>
<CalendarStyle CssText="background-color:white;border-bottom-color:Silver;border-bottom-style:solid;border-bottom-width:1px;border-left-color:Silver;border-left-style:solid;border-left-width:1px;border-right-color:Silver;border-right-style:solid;border-right-width:1px;border-top-color:Silver;border-top-style:solid;border-top-width:1px;color:#2C0B1E;padding-bottom:5px;padding-left:5px;padding-right:5px;padding-top:5px;"/>
<DayHoverStyle CssText="cursor:hand;background-image:url('00040402');color:#1c7cdc;"/>
<MonthStyle CssText="font-family:Verdana;font-size:8pt;margin-bottom:0px;margin-left:4px;margin-right:4px;margin-top:0px;"/>
<DayStyle CssText="color:#666666;font-weight:bold;"/>
<FooterTemplate>
<table border="0" cellpadding="0" cellspacing="5" width="100%" style="font-family:verdana;font-size:8pt;">
<tr>
<td valign="middle" style="text-align:center;">Today: {var:today:MM/dd/yyyy}</td>
</tr>
</table>
</FooterTemplate>
<DayHeaderStyle CssText="border-bottom: #f5f5f5 1px solid"/>
</eo:DatePicker>
<asp:DropDownList ID="DropDownListTravelArrivalDate" SelectedValue='<%# Bind("TravelArrivalDate", "{0:t}") %>' OnInit='<%# CreateTimesGU("DropDownListTravelArrivalDate") %>' OnSelectedIndexChanged="DropDownListTravelArrivalDateGU_SelectedIndexChanged" AutoPostBack="true" runat="server"></asp:DropDownList>
<asp:TextBox ID="TextBoxTravelArrivalDate" Text='<%# Bind("TravelArrivalDate", "{0:MM/dd/yyyy} {0:t}") %>' ReadOnly="true" runat="server" />
</EditItemTemplate>
<ItemTemplate><%# Eval("TravelArrivalDate", "{0:MM/dd/yyyy} {0:t}").ToString() %></ItemTemplate>
</asp:TemplateField>

protected void DatePickerTravelArrivalDateGU_SelectionChanged(object sender, EventArgs e)
{
EO.Web.DatePicker dPicker = (EO.Web.DatePicker)sender;
TextBox tBox = AccessDetailsView7_GU.FindControl("TextBoxTravelArrivalDate") as TextBox;
String stringVariable = String.Empty;
String stringOfChars = " ";
char[] charArray = stringOfChars.ToCharArray();
String[] stringArray = tBox.Text.Split(charArray, 2);
if (dPicker.SelectedDateString.Equals(String.Empty))
{
tBox.Text = "";
}
else
{
tBox.Text = dPicker.SelectedDateString + " " + stringArray[1].ToString();
}
}

Hi,

We looked into it and it appears to be working fine here. Check your DataBind calls. SelectedDateString='<%# Bind("TravelArrivalDate") %>' get executed every time DataBind() is called, either implicitly or explicitly. When it is called, it resets the DatePicker's SelectedDate to the value from the data source, which would wipe out the new value you have selected.

Thanks

Hi,

We are still quite confused about what you are talking about...Can you create a sample project that reproduces the problem? We will take a look as soon as we have that.

Thanks

Hi,

I think we got what you mean, but we need to debug your server side code in order to find out why it's doing that. We can setup an online meeting for you so that you can share your desktop with us, please let us know if you are OK with that.

Thanks

Definitely yes. That is actually better because we will be able to debug not only through your code, but also our code. But please make sure the code you sent to us runs. The issue does not appear to be a simple one, so we do not think we can really dig out too much without being able to run and debug through it --- that's also why we were asking for a reproducing sample.

In many cases of ASP.NET 2.0 many developers don't want to use the ViewState because it adds major amounts of data to the page and makes the pages excessivly HUGE. Is there a way you could let us not have to use the ViewState with the DatePicker? Right now your control is the only one that I would have to use the ViewState for on any of my reports or my major sites and I would rather not have to turn it on because it would more than triple the size of the pages.

Microsoft created the ControlState to be used instead of the ViewState to be used as one option -- could that be used in some way for the ASP.NET 2.0 DatePicker users?

Thanks.