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Gridview + ObjectDatasourc e + UpdateMethod = Input string was not in a correct format

M C
Hi,
This is a problem that has been haunting me for days and I've come to a
complete dead-end. I'm using a objectdatasourc e to select and update a
gridview control. Populating with select works fine but updating gives
the "input string... " error. Any suggestions or links to a working
sample. Let me know if anyone needs any code posted...
Thanks in advance!
MC

Apr 17 '06 #1
7 5167
what kind of input string error?

"M C" <mi************ **@gmail.com> wrote in message
news:11******** **************@ j33g2000cwa.goo glegroups.com.. .
Hi,
This is a problem that has been haunting me for days and I've come to a
complete dead-end. I'm using a objectdatasourc e to select and update a
gridview control. Populating with select works fine but updating gives
the "input string... " error. Any suggestions or links to a working
sample. Let me know if anyone needs any code posted...
Thanks in advance!
MC

Apr 18 '06 #2
Are you updating real or datetime values?

There's a bug in the ObjectDataSourc e that prevents it from working
properly if the current culture is "compatible " with the
InvariantCultur e. For more info take a look here:

http://www.manuelabadia.com/blog/Per...5ceaf21cc.aspx

The only thing you can do to bypass this error if you're using the
ObjectDataSourc e is to set your current culture to the InvariantCultur e
but probably this is not what you want to do as you'll loose your
datetime and real formats.

You can use my ExtendedObjectD ataSource that is a component with more
functionality than the ObjectDataSourc e:

http://www.manuelabadia.com/products/EODS_features.aspx

You have to pay for the complete version but there's a free version
(look at the purchase page) that works like the ObjectDataSourc e and
doesn't have the "Input string was not in a correct format" error (but
doesn't have caching).

Hope it helps,
Manu.

Apr 18 '06 #3
MC
I'm only updating int and string values...
Here's a snippet of my code:

[ASPX page]:
<asp:GridView ID="gridViewNew s" runat="server"
AutoGenerateCol umns="False" DataSourceID="O bjectDataSource 1"
DataKeyNames="c id,rid">
<Columns>
<asp:CommandFie ld ShowEditButton= "True" >
</asp:CommandFiel d>
<asp:BoundFie ld DataField="cid" HeaderText="CID " ReadOnly="True"
SortExpression= "cid" />
<asp:BoundFie ld DataField="rid" HeaderText="RID " ReadOnly="True"
SortExpression= "rid" />
<asp:BoundFie ld DataField="cont rolvocabulary"
HeaderText="The saurus" ReadOnly="False "
SortExpression= "controlvocabul ary" HtmlEncode="fal se" />
<asp:BoundFie ld DataField="titl e" HeaderText="Rx Title"
ReadOnly="True" SortExpression= "title" />
</Columns>
</asp:GridView>
<asp:ObjectData Source ID="ObjectDataS ource1" runat="server"
OldValuesParame terFormatString ="original_{ }"
SelectMethod="g etInvalidItemBy News" UpdateMethod="e ditNews"
TypeName="Rx">
<UpdateParamete rs>
<asp:Paramete r Name="original_ cid" Type="Int32" />
<asp:Paramete r Name="original_ rid" Type="Int32" />
<asp:Paramete r Name="controlvo cabulary" Type="String" />
</UpdateParameter s>
</asp:ObjectDataS ource>

[CLASS page with UPDATE method]:
public static void editNews(int original_cid, int original_rid, string
controlvocabula ry, string title) {
using (SqlConnection connection = new
SqlConnection(C onfigurationMan ager.Connection Strings["OFHC-RX_RxConnection String"].ConnectionStri ng))
{
using (SqlCommand command = new SqlCommand("lex _EditNews",
connection)) {
command.Command Type = CommandType.Sto redProcedure;
command.Paramet ers.Add("@conte ntid", SqlDbType.Int). Value =
original_cid;
command.Paramet ers.Add("@revis ionid", SqlDbType.Int). Value
= original_rid;
command.Paramet ers.Add("@contr oledvocabvalue" ,
SqlDbType.NVarC har, 1000).Value = controlvocabula ry;
int result = 0;
connection.Open ();
result = command.Execute NonQuery();
connection.Clos e();
}
}
}

Apr 18 '06 #4
MC
Here's output error. I really have no clue to what or where this error
resides.
Thanks...

[FormatException : Input string was not in a correct format.]
System.Text.Str ingBuilder.Form atError() +54
System.Text.Str ingBuilder.Appe ndFormat(IForma tProvider provider,
String format, Object[] args) +2834404
System.String.F ormat(IFormatPr ovider provider, String format,
Object[] args) +93

System.Web.UI.W ebControls.Obje ctDataSourceVie w.MergeDictiona ries(ParameterC ollection
reference, IDictionary source, IDictionary destination, String
parameterNameFo rmatString) +229

System.Web.UI.W ebControls.Obje ctDataSourceVie w.ExecuteUpdate (IDictionary
keys, IDictionary values, IDictionary oldValues) +2113
System.Web.UI.D ataSourceView.U pdate(IDictiona ry keys, IDictionary
values, IDictionary oldValues, DataSourceViewO perationCallbac k
callback) +78
System.Web.UI.W ebControls.Grid View.HandleUpda te(GridViewRow row,
Int32 rowIndex, Boolean causesValidatio n) +1218
System.Web.UI.W ebControls.Grid View.HandleEven t(EventArgs e, Boolean
causesValidatio n, String validationGroup ) +853
System.Web.UI.W ebControls.Grid View.OnBubbleEv ent(Object source,
EventArgs e) +87
System.Web.UI.C ontrol.RaiseBub bleEvent(Object source, EventArgs
args) +35
System.Web.UI.W ebControls.Grid ViewRow.OnBubbl eEvent(Object source,
EventArgs e) +117
System.Web.UI.C ontrol.RaiseBub bleEvent(Object source, EventArgs
args) +35
System.Web.UI.W ebControls.Link Button.OnComman d(CommandEventA rgs e)
+86
System.Web.UI.W ebControls.Link Button.RaisePos tBackEvent(Stri ng
eventArgument) +153

System.Web.UI.W ebControls.Link Button.System.W eb.UI.IPostBack EventHandler.Ra isePostBackEven t(String
eventArgument) +7
System.Web.UI.P age.RaisePostBa ckEvent(IPostBa ckEventHandler
sourceControl, String eventArgument) +11
System.Web.UI.P age.RaisePostBa ckEvent(NameVal ueCollection postData)
+172
System.Web.UI.P age.ProcessRequ estMain(Boolean
includeStagesBe foreAsyncPoint, Boolean includeStagesAf terAsyncPoint)
+4900

Apr 18 '06 #5
I think you should change OldValuesParame terFormatString ="original_{ }"
to OldValuesParame terFormatString ="original_{0}" .

Hope it helps,
Manuel Abadia.

Apr 18 '06 #6
MC
and I tried the culture thing too - it didn't help. Is that something
thats applicable to my problem. As I said earlier, I'm not dealing
with real or datetime values.
MC

Apr 18 '06 #7
MC
THANK YOU!!!! I finally got some meaningful errors and in a split
second I got it fixed!

Apr 18 '06 #8

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