Hi,
I am having a difficulty with RadCheckBox that whenever i check or uncheck a checkbox, all fields maintain their data (viewstate) except my fileupload control that resets to empty. I have tried Ajax asyncFileUpload and I have tried RadAsyncUpload controls but they behave the same when I check or uncheck a RadCheckBox. The controls are all in RadWindow and then in RadAjaxPanel. Plus the Checkbox that I am checking has no autopostback set, e.g. "chkIsComingled" and the FileUpload controls that are resetting are "uplProductionLine" and "uplGasLine"
I am attaching the HTML for this part below.
<telerik:RadWindow runat="server" ID="rdWinNewWell" Modal="True" Width="880px" AutoSize="true" AutoSizeBehaviors="Height" Title="New Well">
<ContentTemplate>
<telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server">
<div> </div>
<div>
<table class="table myTable">
<thead>
<tr>
<th colspan="4">Well Info
</th>
</tr>
</thead>
<tbody>
<tr>
<td>Well (*)</td>
<td>
<telerik:RadComboBox RenderMode="Lightweight" ID="cmbWells" runat="server" Width="200px" Height="400px"
EmptyMessage="Type or Select a Well" DataValueField="API_CD" DataTextField="COMP_NAME"
MarkFirstMatch="true" OnSelectedIndexChanged="cmbWells_SelectedIndexChanged" AutoPostBack="true">
</telerik:RadComboBox>
<telerik:RadCheckBox ID="chkShowComingWells" runat="server" Text="" AutoPostBack="true" OnCheckedChanged="chkShowComingWells_CheckedChanged"></telerik:RadCheckBox>
</td>
<td>Field</td>
<td>
<telerik:RadTextBox RenderMode="Lightweight" ID="txtField" runat="server" Text="" Enabled="false"></telerik:RadTextBox>
</td>
</tr>
<tr>
<td>Location</td>
<td>
<telerik:RadTextBox RenderMode="Lightweight" ID="txtLocation" runat="server" Text="" Enabled="false"></telerik:RadTextBox>
</td>
<td>Type</td>
<td>
<telerik:RadTextBox RenderMode="Lightweight" ID="txtWellType" runat="server" Text="" Enabled="false"></telerik:RadTextBox>
</td>
</tr>
<tr>
<td>MOP</td>
<td>
<telerik:RadTextBox RenderMode="Lightweight" ID="txtWellMOP" runat="server" Text="" Enabled="false"></telerik:RadTextBox>
</td>
<td>Spud Date</td>
<td>
<telerik:RadTextBox RenderMode="Lightweight" ID="txtExpetedSpud" runat="server" Text="" Enabled="false"></telerik:RadTextBox>
</td>
</tr>
<tr>
<td>Expected Oil (*)</td>
<td>
<telerik:RadNumericTextBox RenderMode="Lightweight" ID="txtExpectedOil" runat="server" Type="Number" NumberFormat-DecimalDigits="3"></telerik:RadNumericTextBox>
</td>
<td>Is Water Injector?</td>
<td>
<telerik:RadCheckBox ID="chkIsWaterInjector" runat="server" Text="" OnClientCheckedChanged="disableForm" AutoPostBack="false"></telerik:RadCheckBox>
</td>
</tr>
</tbody>
</table>
</div>
<div>
<table class="table myTable">
<thead>
<tr>
<th colspan="4">Production Flow Line
</th>
</tr>
</thead>
<tbody>
<tr>
<td>Stations
</td>
<td colspan="3">
<telerik:RadComboBox RenderMode="Lightweight" ID="cmbStationsOfManifolds" runat="server"
EmptyMessage="Filter by Station" DataValueField="LOOKUP_CODE" DataTextField="LOOKUP_TEXT"
OnSelectedIndexChanged="cmbStationsOfManifolds_SelectedIndexChanged" AutoPostBack="true">
</telerik:RadComboBox>
</td>
</tr>
<tr>
<td>Manifold (*)</td>
<td>
<telerik:RadComboBox RenderMode="Lightweight" ID="cmbManifolds" runat="server" Width="300px" Height="400px" DropDownWidth="300px"
EmptyMessage="Type or Select a Manifold" MarkFirstMatch="true" OnSelectedIndexChanged="cmbManifolds_SelectedIndexChanged" AutoPostBack="true">
<HeaderTemplate>
<table style="width: 265px" cellspacing="0" cellpadding="0">
<tr>
<td style="width: 175px;">Manifold Name
</td>
<td style="width: 70px;">Dist. m
</td>
<td style="width: 70px;">Avl. Slots
</td>
</tr>
</table>
</HeaderTemplate>
<ItemTemplate>
<table style="width: 265px" cellspacing="0" cellpadding="0">
<tr>
<td style="width: 175px;">
<%# DataBinder.Eval(Container, "Text")%>
</td>
<td style="width: 70px;">
<%# DataBinder.Eval(Container, "Attributes['MANIFOLD_DISTANCE_DB']")%>
</td>
<td style="width: 70px;">
<%# DataBinder.Eval(Container, "Attributes['AVAILABLE_SLOTS']")%>
</td>
</tr>
</table>
</ItemTemplate>
</telerik:RadComboBox>
</td>
<td>Slots</td>
<td>
<telerik:RadComboBox RenderMode="Lightweight" ID="cmbSlot" runat="server" Width="200px" DropDownWidth="200px"
EmptyMessage="Type or Select a Slot #" MarkFirstMatch="true">
<HeaderTemplate>
<table style="width: 160px" cellspacing="0" cellpadding="0">
<tr>
<td style="width: 60px;">Slot #
</td>
<td style="width: 100px;">Status
</td>
</tr>
</table>
</HeaderTemplate>
<ItemTemplate>
<table style="width: 160px" cellspacing="0" cellpadding="0">
<tr>
<td style="width: 60px;">
<%# DataBinder.Eval(Container, "Text")%>
</td>
<td style="width: 100px;">
<%# DataBinder.Eval(Container, "Attributes['STATUS']")%>
</td>
</tr>
</table>
</ItemTemplate>
</telerik:RadComboBox>
</td>
</tr>
<tr>
<td>Comingled?</td>
<td>
<telerik:RadCheckBox ID="chkIsComingled" runat="server" Text=""></telerik:RadCheckBox>
</td>
<td>Comingled At
</td>
<td>
<telerik:RadComboBox RenderMode="Lightweight" ID="cmbComingleType" runat="server" Width="200px"
EmptyMessage="Select Comingle Type" DataValueField="LOOKUP_CODE" DataTextField="LOOKUP_TEXT">
</telerik:RadComboBox>
<i class="fa fa-info-circle" aria-hidden="true" id="infoComingleType" runat="server"></i>
<telerik:RadToolTip RenderMode="Lightweight" ID="tltComingleType" runat="server" TargetControlID="infoComingleType" RelativeTo="Element"
Position="TopLeft" RenderInPageRoot="true" AutoCloseDelay="0">
<p><b>At Line:</b> The well is comingled at flow line.</p>
<p><b>At Manifold:</b> The well is comingled in the station near manifold.</p>
</telerik:RadToolTip>
</td>
</tr>
<tr>
<td>Estimated Length (*)</td>
<td>
<telerik:RadNumericTextBox RenderMode="Lightweight" ID="txtEstimatedLengthProd" runat="server" EmptyMessage="Meters" Width="80px"
Type="Number" NumberFormat-DecimalDigits="3">
</telerik:RadNumericTextBox>
Actual Length
<telerik:RadNumericTextBox RenderMode="Lightweight" ID="txtActualLengthProd" runat="server" EmptyMessage="Meters" Width="80px"
Type="Number" NumberFormat-DecimalDigits="3">
</telerik:RadNumericTextBox>
</td>
<td>Size (*)</td>
<td>
<telerik:RadTextBox RenderMode="Lightweight" ID="txtEstimatedSizeProd" runat="server" Enabled="false"></telerik:RadTextBox>
<telerik:RadButton ID="btnMultiSizes" runat="server" Text="Select ..." OnClick="btnMultiSizes_Click">
<Icon PrimaryIconCssClass="rbConfig" />
</telerik:RadButton>
</td>
</tr>
<tr>
<td>Temperature (*)</td>
<td>
<telerik:RadNumericTextBox RenderMode="Lightweight" ID="txtTemperature" runat="server" EmptyMessage="°F"
Type="Number" NumberFormat-DecimalDigits="3">
</telerik:RadNumericTextBox>
</td>
<td>Pressure (*)</td>
<td>
<telerik:RadNumericTextBox RenderMode="Lightweight" ID="txtPressure" runat="server" EmptyMessage="PSI"
Type="Number" NumberFormat-DecimalDigits="3">
</telerik:RadNumericTextBox>
</td>
</tr>
<tr>
<td colspan="4">
<div class="MyAttach">
<span>Attachment</span>
<span>
<asp:FileUpload ID="uplProductionLine" runat="server" onchange="setImageThumbProd(this);" />
</span>
<span>
<img id="imgThumbProd" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" alt="Image" />
</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div>
<table class="table myTable">
<thead>
<tr>
<th colspan="4">Gas Lift Line
</th>
</tr>
</thead>
<tbody>
<tr>
<td>Estimated Length</td>
<td>
<telerik:RadNumericTextBox RenderMode="Lightweight" ID="txtEstimatedLengthGas" runat="server" EmptyMessage="Meters" Width="80px"
Type="Number" NumberFormat-DecimalDigits="3">
</telerik:RadNumericTextBox>
Actual Length
<telerik:RadNumericTextBox RenderMode="Lightweight" ID="txtActualLengthGas" runat="server" EmptyMessage="Meters" Width="80px"
Type="Number" NumberFormat-DecimalDigits="3">
</telerik:RadNumericTextBox>
</td>
<td>Size</td>
<td>
<telerik:RadTextBox RenderMode="Lightweight" ID="txtEstimatedSizeGas" runat="server" Enabled="false"></telerik:RadTextBox>
<telerik:RadButton ID="btnMultiSizesGas" runat="server" Text="Select ..." OnClick="btnMultiSizesGas_Click">
<Icon PrimaryIconCssClass="rbConfig" />
</telerik:RadButton>
</td>
</tr>
<tr>
<td>Comments</td>
<td>
<telerik:RadTextBox RenderMode="Lightweight" ID="txtGasLineComments" runat="server" TextMode="MultiLine" Rows="2" Width="250px" MaxLength="499"></telerik:RadTextBox>
</td>
<td colspan="2">
<telerik:RadCheckBox ID="chkIsShutinRequired" runat="server" Text="Is well shut-in required?"></telerik:RadCheckBox>
</td>
</tr>
<tr>
<td colspan="4">
<div class="MyAttach">
<span>Attachment</span>
<span>
<asp:FileUpload ID="uplGasLine" runat="server" onchange="setImageThumbGas(this);" />
</span>
<span>
<img id="imgThumbGas" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" alt="Image" />
</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div>
<table class="table myTable">
<thead>
<tr>
<th colspan="4">Connection Information
</th>
</tr>
</thead>
<tbody>
<tr>
<td>Start</td>
<td>
<telerik:RadDatePicker RenderMode="Lightweight" ID="dtpStartDate" Width="250px" runat="server" MaxDate="12-31-9999" DateInput-EmptyMessage="Pick Start Date"></telerik:RadDatePicker>
</td>
<td>End</td>
<td>
<telerik:RadDatePicker RenderMode="Lightweight" ID="dtpEndDate" Width="150px" runat="server" MaxDate="12-31-9999" DateInput-EmptyMessage="Pick End Date"></telerik:RadDatePicker>
<telerik:RadCheckBox ID="chkInfiniteEnd" runat="server" Text="Infinite" OnClientCheckedChanged="setEndDate" AutoPostBack="false"></telerik:RadCheckBox>
</td>
</tr>
<tr>
<td>Status</td>
<td>
<telerik:RadComboBox RenderMode="Lightweight" ID="cmbStatus" runat="server" Width="250px"
EmptyMessage="Type or Select Status" DataValueField="STATUS_VALUE" DataTextField="STATUS_TEXT"
MarkFirstMatch="true">
</telerik:RadComboBox>
</td>
<td>FLAS Comments</td>
<td>
<telerik:RadTextBox RenderMode="Lightweight" ID="txtFLASComments" runat="server" TextMode="MultiLine" Rows="2" Width="250px" MaxLength="499"></telerik:RadTextBox></td>
</tr>
</tbody>
</table>
</div>
<div>
<table class="table myTable">
<thead>
<tr>
<th colspan="4">History
</th>
</tr>
</thead>
<tbody>
<tr>
<td colspan="4">
<telerik:RadGrid RenderMode="Lightweight" ID="rdgWFHistory" runat="server" ShowStatusBar="true" AutoGenerateColumns="False"
AllowSorting="True" AllowMultiRowSelection="False" AllowPaging="True" PageSize="2" OnNeedDataSource="rdgWFHistory_NeedDataSource">
<PagerStyle Mode="NumericPages"></PagerStyle>
<MasterTableView>
<Columns>
<telerik:GridBoundColumn SortExpression="CREATED_DT" HeaderText="Date" HeaderButtonType="TextButton"
DataField="CREATED_DT">
</telerik:GridBoundColumn>
<telerik:GridBoundColumn SortExpression="REVIEWED_BY" HeaderText="Reviewed By" HeaderButtonType="TextButton"
DataField="REVIEWED_BY">
</telerik:GridBoundColumn>
<telerik:GridBoundColumn SortExpression="REVIEWER_INFO" HeaderText="Reviewer Info" HeaderButtonType="TextButton"
DataField="REVIEWER_INFO">
</telerik:GridBoundColumn>
<telerik:GridBoundColumn SortExpression="STATUS" HeaderText="Status" HeaderButtonType="TextButton"
DataField="STATUS">
</telerik:GridBoundColumn>
<telerik:GridBoundColumn SortExpression="COMMENTS" HeaderText="Comments" HeaderButtonType="TextButton"
DataField="COMMENTS">
</telerik:GridBoundColumn>
</Columns>
</MasterTableView>
</telerik:RadGrid>
</td>
</tr>
</tbody>
</table>
</div>
<div style="text-align: center;">
<asp:Label ID="lblPermissionMSG" Text="" runat="server" ForeColor="Red" />
<br />
<telerik:RadButton ID="btnSave" runat="server" Text="Save" OnClick="btnSave_Click">
<Icon PrimaryIconCssClass="rbOk" />
</telerik:RadButton>
<telerik:RadButton ID="btnCancel" runat="server" Text="Close" OnClientClicked="function(button, args){closeRadWin(button, args, 'rdWinNewWell');}">
<Icon PrimaryIconCssClass="rbCancel" />
</telerik:RadButton>
</div>
<telerik:RadNotification RenderMode="Lightweight" ID="ntfMessage" runat="server" Position="BottomRight"
AutoCloseDelay="6000" Width="350" Height="200" EnableShadow="true" Animation="Fade" Title="Title"
EnableRoundedCorners="true" TitleIcon="none" ContentIcon="~/Images/tick_icon32_2.png" KeepOnMouseOver="true">
</telerik:RadNotification>
<telerik:RadNotification RenderMode="Lightweight" ID="ntfError" runat="server" Position="BottomRight"
AutoCloseDelay="6000" Width="350" Height="200" EnableShadow="true" Animation="Fade" Title="Title"
EnableRoundedCorners="true" TitleIcon="none" ContentIcon="delete" KeepOnMouseOver="true">
</telerik:RadNotification>
<asp:HiddenField runat="server" ID="hdnSelectedmanifold" />
<asp:HiddenField runat="server" ID="hdnFormType" Value="NEW" />
<asp:HiddenField runat="server" ID="hdnTrxID" />
</telerik:RadAjaxPanel>
</ContentTemplate>
</telerik:RadWindow>