Question
Have an asp.net app and am writing insert, update and delete operations for a details view
My insert works great, now I'm trying to do the update, but I'm getting YSOD when I press the update button. There's only one date on the form and that uses exactly same template for insert and edit. Below is the asp and stack trace and from what I can see it's not in any of my subs at this point:
https://stackoverflow.com/questions/18113686
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Russian<asp:DetailsView ID="dvInvoice" runat="server" Height="50px" Width="250px" DataSourceID="odsInvoices" AutoGenerateRows="False" DataKeyNames="ID">
<Fields>
<asp:TemplateField HeaderText="ID" InsertVisible="False" SortExpression="ID">
<EditItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("ID") %>'></asp:Label>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("ID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="TripNo" SortExpression="TripNo">
<EditItemTemplate>
<asp:TextBox ID="txtTripNo" runat="server" Text='<%# Bind("TripNo") %>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="txtTripNo" runat="server" Text='<%# Bind("TripNo") %>'></asp:TextBox>
<asp:RequiredFieldValidator ValidationGroup="vDetailErrors"
CssClass="ErrorClass" ID="rfvTripNo" runat="server"
ErrorMessage="An trip no must entered"
ControlToValidate="txtTripNo"
Display="Dynamic">
</asp:RequiredFieldValidator>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Bind("TripNo") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="TypeID" SortExpression="TypeID">
<InsertItemTemplate>
<asp:DropDownList ID="ddLineTypes"
runat="server"
SelectedValue='<%# Bind("TypeID")%>'
DataSourceID="odsLineTypes"
DataTextField="TypeDesc"
DataValueField="TypeID"
AppendDataBoundItems="True" AutoPostBack="True" OnSelectedIndexChanged="Type_Change"
>
<asp:ListItem Value="-1" Selected="True">Select a Type</asp:ListItem>
</asp:DropDownList>
<br />
<asp:CompareValidator ID="cvLineTypes" runat="server"
ControlToValidate="ddLineTypes" CssClass="ErrorClass"
ErrorMessage="Please Select a Type"
ValidationGroup="vDetailErrors" ValueToCompare="-1" Operator="NotEqual"
Display="Dynamic"></asp:CompareValidator>
<asp:ObjectDataSource ID="odsLineTypes" runat="server" OldValuesParameterFormatString="original_{0}" TypeName="LineTypesBLL" SelectMethod="GetLineTypes">
<SelectParameters>
<asp:Parameter DefaultValue="True" Name="InvOnly" Type="Boolean" />
</SelectParameters>
</asp:ObjectDataSource>
</InsertItemTemplate>
<EditItemTemplate>
<asp:DropDownList ID="ddLineTypes"
runat="server"
SelectedValue='<%# Session("CurrType")%>'
DataSourceID="odsLineTypes"
DataTextField="TypeDesc"
DataValueField="TypeID"
AppendDataBoundItems="True" AutoPostBack="True" OnSelectedIndexChanged="Type_Change"
>
</asp:DropDownList>
<br />
<asp:CompareValidator ID="cvLineTypes" runat="server"
ControlToValidate="ddLineTypes" CssClass="ErrorClass"
ErrorMessage="Please Select a Type"
ValidationGroup="vDetailErrors" ValueToCompare="-1" Operator="NotEqual"
Display="Dynamic"></asp:CompareValidator>
<asp:ObjectDataSource ID="odsLineTypes" runat="server" OldValuesParameterFormatString="original_{0}" TypeName="LineTypesBLL" SelectMethod="GetLineTypes">
<SelectParameters>
<asp:Parameter DefaultValue="True" Name="InvOnly" Type="Boolean" />
</SelectParameters>
</asp:ObjectDataSource>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label3" runat="server" Text='<%# Bind("TypeID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="VendorID" SortExpression="VendorID">
<EditItemTemplate>
<asp:DropDownList ID="ddVendors"
runat="server"
SelectedValue='<%# Bind("VendorID")%>'
DataSourceID="odsVendors"
DataTextField="Name"
DataValueField="VendorID"
AppendDataBoundItems="True"
AutoPostBack ="True">
<asp:ListItem Value="-1">Select a Vendor</asp:ListItem>
</asp:DropDownList>
<br />
<asp:CompareValidator ID="cvVendors" runat="server"
ControlToValidate="ddVendors" CssClass="ErrorClass"
ErrorMessage="Please Select a Vendor"
ValidationGroup="vDetailErrors" ValueToCompare="-1" Operator="NotEqual"
Display="Dynamic"></asp:CompareValidator>
<asp:ObjectDataSource ID="odsVendors" runat="server" OldValuesParameterFormatString="original_{0}" SelectMethod="GetVendors" TypeName="VendorsBLL"></asp:ObjectDataSource>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label4" runat="server" Text='<%# Bind("VendorID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="InvNo" SortExpression="InvNo">
<EditItemTemplate>
<asp:TextBox ID="txtInvNo" runat="server" Text='<%# Bind("InvNo") %>'></asp:TextBox>
<asp:RequiredFieldValidator ValidationGroup="vDetailErrors"
CssClass="ErrorClass" ID="rfvInvNo" runat="server"
ErrorMessage="An invoice number must be entered"
ControlToValidate="txtInvNo"
Display="Dynamic">
</asp:RequiredFieldValidator>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label5" runat="server" Text='<%# Bind("InvNo") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="InvAmount" SortExpression="InvAmount">
<EditItemTemplate>
<asp:TextBox ID="txtInvAmount" runat="server" Text='<%# Bind("InvAmount") %>'></asp:TextBox>
<br />
<asp:RequiredFieldValidator ValidationGroup="vDetailErrors"
CssClass="ErrorClass" ID="rfvInvAmount" runat="server"
ErrorMessage="An invoice amount must be entered"
ControlToValidate="txtInvAmount"
Display="Dynamic"></asp:RequiredFieldValidator>
<br />
<asp:CompareValidator ValidationGroup="vDetailErrors"
CssClass="ErrorClass" ID="cvInvAmount" runat="server"
ControlToValidate="txtInvAmount"
ErrorMessage="A numeric Invoice Amount MUST be entered"
Operator="DataTypeCheck" Type="Currency"
Display="Dynamic"></asp:CompareValidator>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label6" runat="server" Text='<%# Bind("InvAmount") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="InvDate" SortExpression="InvDate">
<EditItemTemplate>
<asp:TextBox ID="txtInvDate" runat="server" Text='<%# Bind("InvDate") %>'></asp:TextBox>
<br />
<asp:RequiredFieldValidator ValidationGroup="vDetailErrors"
CssClass="ErrorClass" ID="rfvInvDate" runat="server"
ErrorMessage="An invoice date must be entered"
ControlToValidate="txtInvDate"
Display="Dynamic">
</asp:RequiredFieldValidator>
<br />
<asp:CustomValidator ValidationGroup="vDetailErrors"
CssClass="ErrorClass"
ID="cvInvDate" runat="server"
ErrorMessage="A valid date within the last two years and no later than next year must be entered"
OnServerValidate="cvInvDate_ServerValidate" ControlToValidate="txtInvDate"
Display="Dynamic">
</asp:CustomValidator>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label7" runat="server" Text='<%# Bind("InvDate") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:CommandField CausesValidation="true" ShowEditButton="true" ShowInsertButton="true" ValidationGroup="vDetailErrors" />
</Fields>
</asp:DetailsView>
<p>
<asp:ObjectDataSource ID="odsInvoices" runat="server" InsertMethod="AddInvoice" OldValuesParameterFormatString="original_{0}" SelectMethod="GetInvoicesByTripNo" TypeName="InvoicesBLL" UpdateMethod="UpdateInvoice">
<InsertParameters>
<asp:ControlParameter ControlID="dvInvoice" Name="TripNo" PropertyName="SelectedValue" Type="String" />
<asp:ControlParameter ControlID="dvInvoice" Name="TypeID" PropertyName="SelectedValue" Type="Int32" />
<asp:ControlParameter ControlID="dvInvoice" Name="VendorID" PropertyName="SelectedValue" Type="Int32" />
<asp:ControlParameter ControlID="dvInvoice" Name="InvNo" PropertyName="SelectedValue" Type="String" />
<asp:ControlParameter ControlID="dvInvoice" Name="InvAmount" PropertyName="SelectedValue" Type="Decimal" />
<asp:ControlParameter ControlID="dvInvoice" Name="InvDate" PropertyName="SelectedValue" Type="DateTime" />
<asp:Parameter Name="ID" Type="Int32" />
</InsertParameters>
<SelectParameters>
<asp:ControlParameter ControlID="txtLoadNo" Name="TripNo" PropertyName="Text" Type="String" />
</SelectParameters>
<UpdateParameters>
<asp:ControlParameter ControlID="dvInvoice" Name="TripNo" PropertyName="SelectedValue" Type="String" />
<asp:ControlParameter ControlID="dvInvoice" Name="TypeID" PropertyName="SelectedValue" Type="Int32" />
<asp:ControlParameter ControlID="dvInvoice" Name="VendorID" PropertyName="SelectedValue" Type="Int32" />
<asp:ControlParameter ControlID="dvInvoice" Name="InvNo" PropertyName="SelectedValue" Type="String" />
<asp:ControlParameter ControlID="dvInvoice" Name="InvAmount" PropertyName="SelectedValue" Type="Decimal" />
<asp:ControlParameter ControlID="dvInvoice" Name="InvDate" PropertyName="SelectedValue" Type="DateTime" />
<asp:ControlParameter ControlID="dvInvoice" Name="original_ID" PropertyName="SelectedValue" Type="Int32" />
</UpdateParameters>
</asp:ObjectDataSource>
YSOD Error
Invalid cast from 'Int32' to 'DateTime'. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidCastException: Invalid cast from 'Int32' to 'DateTime'.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[InvalidCastException: Invalid cast from 'Int32' to 'DateTime'.]
System.Int32.System.IConvertible.ToDateTime(IFormatProvider provider) +134
System.Convert.ChangeType(Object value, TypeCode typeCode, IFormatProvider provider) +519
System.Web.UI.WebControls.Parameter.GetValue(Object value, String defaultValue, TypeCode type, Boolean convertEmptyStringToNull, Boolean ignoreNullableTypeChanges) +126
System.Web.UI.WebControls.Parameter.GetValue(Object value, Boolean ignoreNullableTypeChanges) +63
System.Web.UI.WebControls.Parameter.get_ParameterValue() +40
System.Web.UI.WebControls.ParameterCollection.GetValues(HttpContext context, Control control) +247
System.Web.UI.WebControls.ObjectDataSourceView.ExecuteUpdate(IDictionary keys, IDictionary values, IDictionary oldValues) +1440
System.Web.UI.DataSourceView.Update(IDictionary keys, IDictionary values, IDictionary oldValues, DataSourceViewOperationCallback callback) +87
System.Web.UI.WebControls.DetailsView.HandleUpdate(String commandArg, Boolean causesValidation) +1091
System.Web.UI.WebControls.DetailsView.HandleEvent(EventArgs e, Boolean causesValidation, String validationGroup) +425
System.Web.UI.WebControls.DetailsView.OnBubbleEvent(Object source, EventArgs e) +89
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37
System.Web.UI.WebControls.DetailsViewRow.OnBubbleEvent(Object source, EventArgs e) +80
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37
System.Web.UI.WebControls.LinkButton.OnCommand(CommandEventArgs e) +121
System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) +156
System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +9642338
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1724
Solution
Your settings for InsertParameters and UpdateParameters are wrong.
In the objectdatasource, your ControlID="dvInvoice" and PropertyName="SelectedValue". This selected value is the DataKey of the DetailsView, which is ID ( DataKeyNames="ID"). So, you have all properties set to get data from ID, which is Int, not datetime.
You may look more into DetailsView.SelectedValue Property here and ControlParameter.PropertyName Property here.
