Server side grouping resets form values

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Jamy asked on 10 Dec 2010, 10:56 PM

I am using 2 DateTimePickers and a submit button in my form.

Outside of my form I am server side binding a grid. When changing dates and posting back the data is returned to the grid as expected and the dates stay as is for the DateTimePickers.

The problem is when I use grouping... as soon as I do, the postback causes the dates to come in as nulls to my action and my default date range is used and the dateTimePickers are returned empty.

Is this a bug in the grouping or am I doing something wrong?

<% using (Html.BeginForm()){ %>

<fieldset>

<legend>Search By</legend>

<% Html.Telerik().DateTimePicker()

.Name("dtpStart")

.Format("M/d/yyyy h:mm tt")

.Render(); %>

<% Html.Telerik().DateTimePicker()

.Name("dtpEnd")

.Format("M/d/yyyy h:mm tt")

.Render(); %>

<input type="submit" value="Search" class="t-button t-state-default" style="display:inline-block" />

</fieldset>

<%} %>

<% Html.Telerik().Grid(Model).Name("Grid1").Columns(columns =>

{

columns.Template(c =>

public ActionResult Search(DateTime? dtpStart, DateTime? dtpEnd)

{

ViewData["dtpStart"] = dtpStart;

ViewData["dtpEnd"] = dtpEnd;

DateTime d = new DateTime(1900,1,1,0,0,0);

if (!dtpStart.HasValue || !dtpEnd.HasValue)

{

dtpStart = new DateTime(2009, 10, 27, 0, 0, 0);

dtpEnd = new DateTime(2009, 10, 27, 4, 30, 0);

}

int startStamp = (int)dtpStart.Value.Subtract(d).TotalMinutes;

int endStamp = (int)dtpEnd.Value.Subtract(d).TotalMinutes;

decimal disconnectThreshold = 0;