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POCan't update Tabled Mapped in Linq2Sql
 

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  1. POCan't update Tabled Mapped in Linq2Sql
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    <p>I'm having troubles right now, I can't update a table X in DBDataContext, so this is my snippet, by the way when I update just one table it works! But when I Insert and then update, it throws exception: "can't cast object from System.Int32 to System.String type"</p> <pre><code>{ using (DBDataContext db = new DBDataContext()) { int codigo = Convert.ToInt32(lblNroInforme.Content); int sucessfull = 0; INFORMEMEDICO varInf = (from i in db.INFORMEMEDICOs where i.numeroinforme == codigo select i).SingleOrDefault(); if (varInf == null) { varInf = new INFORMEMEDICO(); varInf.codigoclase = Convert.ToInt32(lblCodigoClase.Content.ToString()); varInf.codigoestudio = lblCodigoEstudio.Content.ToString(); varInf.codigopaciente = Convert.ToInt32(lblCodigoPaciente.Content.ToString()); varInf.conclusion = GetText(rtbConclusion); varInf.fechainforme = DateTime.Today; varInf.firmauno = getJPGFromImageControl(firmaUno.Source as BitmapImage); varInf.firmados = getJPGFromImageControl(firmaDos.Source as BitmapImage); varInf.hallazgo = GetText(rtbHallazgo); varInf.horainforme = Convert.ToDateTime(DateTime.Today.ToShortTimeString()); varInf.impreso = 0; varInf.medicoinforma = cboTurnoMed.SelectedValue.ToString(); varInf.nombreinforme = txtNombreExamen.Text; varInf.numeroinforme = Convert.ToInt32(lblNroInforme.Content.ToString()); varInf.tecnica = GetText(rtbTecnica); varInf.turnosocio = lblTurnoMedico.Content.ToString(); try { db.INFORMEMEDICOs.InsertOnSubmit(varInf); db.SubmitChanges(); sucessfull = 1; } catch (Exception ex) { MessageBox.Show("Error : " + ex.Message); } if (sucessfull==1) { EXAMENXATENCION varExA = (from ea in db.EXAMENXATENCIONs where ea.codigo == codigo select ea).SingleOrDefault(); varExA.estadoestudio = 'I'; db.SubmitChanges(); } } } } </code></pre> <p>I'm getting this stack from debugger when I perform update : </p> <pre><code>en System.Data.Linq.IdentityManager.StandardIdentityManager.MultiKeyManager`3.TryCreateKeyFromValues(Object[] values, MultiKey`2&amp; k) en System.Data.Linq.IdentityManager.StandardIdentityManager.MultiKeyManager`3.TryCreateKeyFromValues(Object[] values, MultiKey`2&amp; k) en System.Data.Linq.IdentityManager.StandardIdentityManager.MultiKeyManager`3.TryCreateKeyFromValues(Object[] values, MultiKey`2&amp; k) en System.Data.Linq.IdentityManager.StandardIdentityManager.MultiKeyManager`3.TryCreateKeyFromValues(Object[] values, MultiKey`2&amp; k) en System.Data.Linq.IdentityManager.StandardIdentityManager.IdentityCache`2.Find(Object[] keyValues) en System.Data.Linq.IdentityManager.StandardIdentityManager.Find(MetaType type, Object[] keyValues) en System.Data.Linq.CommonDataServices.GetCachedObject(MetaType type, Object[] keyValues) en System.Data.Linq.ChangeProcessor.GetOtherItem(MetaAssociation assoc, Object instance) en System.Data.Linq.ChangeProcessor.BuildEdgeMaps() en System.Data.Linq.ChangeProcessor.SubmitChanges(ConflictMode failureMode) en System.Data.Linq.DataContext.SubmitChanges(ConflictMode failureMode) en System.Data.Linq.DataContext.SubmitChanges() en Demo.View.InformeMedico.btnGuardar_Click(Object sender, RoutedEventArgs e) en D:\cs_InformeMedico\app\InformeMedico.xaml.cs:línea 430 </code></pre>
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    1. This table or related slice is empty.
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    1. This table or related slice is empty.
    1. USAngel Escobedo
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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      1. POCan't update Tabled Mapped in Linq2Sql
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      1. VTUpMod
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      1. POCan't update Tabled Mapped in Linq2Sql
      1. USTimothy Khouri
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    1. This table or related slice is empty.
 

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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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