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RadGrid perform insert looking at databindings

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Kevin
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Kevin asked on 24 May 2012, 07:03 PM
When i click on my insert record button it is giving me an error about Conversion from type 'DBNull' to type 'Boolean' is not valid.  I would think that i knows not to use these databinding since this is for updating and not inserting the data.  I have a custom form that I am using but the same for should be used for inserting as well.

<EditFormSettings EditFormType="Template">
                               <FormTemplate>
                                   <table width="100%">
                                       <tr>
                                           <td style="width:10%" align="right">Mac Type: </td>
                                           <td style="width:15%" align="left"><asp:DropDownList ID="ddlMacType" runat="server" AutoPostBack="false" Width="205px"></asp:DropDownList></td>
                                           <td style="width:10%" align="right">SSN: </td>
                                           <td style="width:15%" align="left"><asp:TextBox ID="txtSSN" runat="server" Width="200px" Text='<%# Bind("strSSN") %>'></asp:TextBox></td>
                                           <td style="width:10%" align="right">EDIPI: </td>
                                           <td style="width:15%" align="left"><asp:TextBox ID="txtEDIPI" runat="server" Width="200px" Text='<%# Bind("strEDIPI") %>'></asp:TextBox></td>
                                           <td style="width:10%" align="right">AKO Logon: </td>
                                           <td style="width:15%" align="left"><asp:TextBox ID="txtAKO" runat="server" Width="200px" Text='<%# Bind("strAkoLogon") %>'></asp:TextBox></td>
                                       </tr>
                                       <tr>
                                           <td style="height:5px"></td>
                                       </tr>
                                       <tr>
                                           <td style="width:10%" align="right">LName: </td>
                                           <td style="width:15%" align="left"><asp:TextBox ID="txtLName" runat="server" Width="200px" Text='<%# Bind("strLName") %>'></asp:TextBox></td>
                                           <td style="width:10%" align="right">FName: </td>
                                           <td style="width:15%" align="left"><asp:TextBox ID="txtFname" runat="server" Width="200px" Text='<%# Bind("strFname") %>'></asp:TextBox></td>
                                           <td style="width:10%" align="right">MI: </td>
                                           <td style="width:15%" align="left"><asp:TextBox ID="txtMI" runat="server" Width="200px" Text='<%# Bind("strMI") %>'></asp:TextBox></td>
                                           <td style="width:10%" align="right">Gen Qual: </td>
                                           <td style="width:15%" align="left"><asp:DropDownList ID="ddlGenQual" runat="server" AutoPostBack="false" Width="205px"></asp:DropDownList></td>
                                       </tr>
                                       <tr>
                                           <td style="height:5px"></td>
                                       </tr>
                                       <tr>
                                           <td style="width:10%" align="right">Emp Type: </td>
                                           <td style="width:15%" align="left"><asp:DropDownList ID="ddlEmpType" runat="server" AutoPostBack="false" Width="205px"></asp:DropDownList></td>
                                           <td style="width:10%" align="right">Rank/Salutation: </td>
                                           <td style="width:15%" align="left"><asp:DropDownList ID="ddlSalutation" runat="server" AutoPostBack="false" Width="205px"></asp:DropDownList></td>
                                           <td style="width:10%" align="right">Job Title: </td>
                                           <td style="width:15%" align="left"><asp:TextBox ID="txtJobTitle" runat="server" Width="200px" Text='<%# Bind("strJobTitle") %>'></asp:TextBox></td>
                                           <td style="width:10%" align="right">Pick Unit: </td>
                                           <td style="width:15%" align="left"><asp:DropDownList ID="ddlunit" runat="server" AutoPostBack="false" Width="205px"></asp:DropDownList></td>
                                       </tr>
                                       <tr>
                                           <td style="height:5px"></td>
                                       </tr>
                                       <tr>
                                           <td style="width:10%" align="right">Requires Email: </td>
                                           <td style="width:15%" align="left"><asp:CheckBox ID="cbEmail" runat="server" Checked='<%# Bind("bitEmail") %>' /></td>
                                           <td style="width:10%" align="right">Military Phone: </td>
                                           <td style="width:15%" align="left"><asp:TextBox ID="txtPhone" runat="server" Width="200px" Text='<%# Bind("strPhoneNumber") %>'></asp:TextBox></td>
                                           <td style="width:10%" align="right">Requires LD: </td>
                                           <td style="width:15%" align="left"><asp:CheckBox ID="cbLD" runat="server" Checked='<%# Bind("bitLongDistance") %>' /></td>
                                           <td style="width:10%" align="right">Requires VM: </td>
                                           <td style="width:15%" align="left"><asp:CheckBox ID="cbVM" runat="server" Checked='<%# Bind("bitVoiceMail") %>' /></td>
                                       </tr>
                                       <tr>
                                           <td style="height:5px"></td>
                                       </tr>
                                       <tr>
                                           <td style="width:10%" align="right"></td>
                                           <td style="width:15%" align="left"></td>
                                           <td style="width:10%" align="right">Zero Out: </td>
                                           <td style="width:15%" align="left"><asp:TextBox ID="txtZeroOut" runat="server" Width="200px" Text='<%# Bind("strVoiceExt") %>'></asp:TextBox></td>
                                           <td style="width:10%" align="right">Notes: </td>
                                           <td style="width:15%" align="left"><asp:TextBox ID="txtNotes" runat="server" Width="260px" TextMode="MultiLine" Height="60px" Text='<%# Bind("strNotes") %>'></asp:TextBox></td>
                                           <td style="width:10%" align="right"></td>
                                           <td style="width:15%" align="left"></td>
                                       </tr>
                                         <tr>
                                           <td style="height:5px"></td>
                                       </tr>
                                   </table>
                                   <table width="100%">
                                        <tr>
                                           <td style="width:25%"></td>
                                           <td style="width:50%" align="center">
                                               <asp:LinkButton ID="lnkSubmit" runat="server" text='<%# IIf((TypeOf(Container) is GridEditFormInsertItem), "Insert", "Update") %>' 
                                               CommandName='<%# IIf((TypeOf(Container) is GridEditFormInsertItem), "PerformInsert", "Update")%>'></asp:LinkButton>
                                                     
                                               <asp:LinkButton ID="lnkCancel" runat="server" CausesValidation="false" CommandName="Cancel" Text="Cancel"></asp:LinkButton>
                                           </td>
                                           <td style="width:25%"></td>
                                       </tr>
                                   </table>
                               </FormTemplate>
                           </EditFormSettings>

I know the update protion is correct but is the insert portion correct for using the radgrid insert record button.

If (e.CommandName = RadGrid.PerformInsertCommandName) Then
       End If
       If (e.CommandName = RadGrid.UpdateCommandName AndAlso e.Item.IsInEditMode) Then
     End if


Error
Conversion from type 'DBNull' to type 'Boolean' is not valid. 
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: Conversion from type 'DBNull' to type 'Boolean' is not valid.
  
Source Error: 
  
  
Line 85:                                         <tr>
Line 86:                                             <td style="width:10%" align="right">Requires Email: </td>
Line 87:                                             <td style="width:15%" align="left"><asp:CheckBox ID="cbEmail" runat="server" Checked='<%# Bind("bitEmail") %>' /></td>
Line 88:                                             <td style="width:10%" align="right">Military Phone: </td>
Line 89:                                             <td style="width:15%" align="left"><asp:TextBox ID="txtPhone" runat="server" Width="200px" Text='<%# Bind("strPhoneNumber") %>'></asp:TextBox></td>
  

3 Answers, 1 is accepted

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Jayesh Goyani
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answered on 24 May 2012, 07:25 PM
Hello Kevin,

Please try with below code snippet.
<asp:CheckBox Checked='<%# Eval("bitEmail") == null ? false : Convert.ToBoolean(Eval("bitEmail")) %>' />


Thanks,
Jayesh Goyani
0
Kevin
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Rank 1
answered on 25 May 2012, 01:55 PM
Hi,
This just throws another error

Compilation Error

Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: BC30201: Expression expected.

Source Error:

Line 85:                                         <tr>
Line 86:                                             <td style="width:10%" align="right">Requires Email:&nbsp;</td>
Line 87: <td style="width:15%" align="left"><asp:CheckBox runat="server" Checked='<%# Eval("bitEmail") == null ? false : Convert.ToBoolean(Eval("bitEmail")) %>' /></td>Line 88: 
Line 89: 


0
Kevin
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answered on 25 May 2012, 02:57 PM
ok found the answer for my problem and it seems to work.
<asp:CheckBox ID="cbEmail" runat="server" Checked='<%# IIF(Convert.tostring(Eval("bitEmail"))="",false, Eval("bitEmail")) %>' />

This is a vb.net solution and C# is a bit different.
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Jayesh Goyani
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Kevin
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