bonjours,
Alors voila je suis confronté a un nouveau problème, il faut que j'ecrive dans un fichier excel. Cela se passe bien mais un fois que j'ai ecrie et que j'ai refermé la connection je n'arrive pas a ouvrir manuellement le fichier excel concerné. Voila les bout de code qui correspondent a ce que je veux faire :
la classe oledb pour lire ecrire dans excel :
la page ou j'utilise le cette dernière :
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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279 #region Imports using System; using System.Data; using System.Data.OleDb; using System.Diagnostics; #endregion /// <summary> /// A client which interfaces to excel work books /// </summary> public class MicrosoftExcelClient { #region Variable Declarations /// <summary> /// Current message from the client /// </summary> string m_CurrentMessage = ""; /// <summary> /// The file path for the source excel book /// </summary> string m_SourceFileName; /// <summary> /// Connects to the source excel workbook /// </summary> OleDbConnection m_ConnectionToExcelBook; /// <summary> /// Reads the data from the document to a System.Data object /// </summary> OleDbDataAdapter m_AdapterForExcelBook; #endregion #region Constructor Logic /// <summary> /// Parameterized constructor .. specifies path /// </summary> /// <param name="iSourceFileName">The source filename</param> public MicrosoftExcelClient(string iSourceFileName) { this.m_SourceFileName = iSourceFileName; } #endregion #region Properties /// <summary> /// Gets the current messages from the client /// </summary> public string CurrentMessage { get { return this.m_CurrentMessage; } } /// <summary> /// Property that gets / sets the current source excel book /// </summary> public string FileName { get { return this.m_SourceFileName; } set { this.m_SourceFileName = value; } } #endregion #region query methods /// <summary> /// Runs a non query database command such as UPDATE , INSERT or DELETE /// </summary> /// <param name="iQuery">The required query</param> /// <returns></returns> public bool runNonQuery(string iQuery) { try { //Declares new Command to query OleDbCommand selectCommand = new OleDbCommand(iQuery); //Declares new connection to an Excel workbook selectCommand.Connection = this.m_ConnectionToExcelBook; //Data adapter this.m_AdapterForExcelBook = new OleDbDataAdapter(); m_AdapterForExcelBook.UpdateCommand = selectCommand; selectCommand.ExecuteNonQuery(); return true; } catch (Exception ex) { this.m_CurrentMessage = "Erreur " + ex.Message; return false; } } public bool runNonQuery(OleDbCommand selectCommand) { try { //Declares new Command to query //OleDbCommand selectCommand = new OleDbCommand(iQuery); //Declares new connection to an Excel workbook selectCommand.Connection = this.m_ConnectionToExcelBook; //Data adapter this.m_AdapterForExcelBook = new OleDbDataAdapter(); m_AdapterForExcelBook.UpdateCommand = selectCommand; selectCommand.ExecuteNonQuery(); return true; } catch (Exception ex) { this.m_CurrentMessage = "Erreur " + ex.Message; return false; } } /// <summary> /// Reads data as per the user query /// </summary> /// <param name="iQuery">The speicfic Query</param> /// <returns>Returns a dataTable, with results from query</returns> public DataTable readForSpecificQuery(string iQuery) { try { //Declares new dataTable, which will be returned filled from query DataTable returnDataObject = new DataTable(); //Command OleDbCommand selectCommand = new OleDbCommand(iQuery); selectCommand.Connection = this.m_ConnectionToExcelBook; //DataAdapter for our excel workbook this.m_AdapterForExcelBook = new OleDbDataAdapter(); //Applies the Select command to the oledbdataadapter and fills it this.m_AdapterForExcelBook.SelectCommand = selectCommand; this.m_AdapterForExcelBook.Fill(returnDataObject); //Sets a success message if query returned good results this.m_CurrentMessage = "Succès - " + returnDataObject.Rows.Count + " records importés "; return returnDataObject; } catch (Exception ex) { //Displays an error message in the statut bar. this.m_CurrentMessage = "ERREUR: " + ex.Message; return null; } } /// <summary> /// Reads an entire excel sheet from an opened excel workbook /// </summary> /// <param name="iSheetName">The name of the excel worksheet</param> /// <returns>Returns a DataTable filled</returns> public DataTable readEntireSheet(string iSheetName) { try { //Declares new DataTable to be returned DataTable returnDataObject = new DataTable(); //New Command for our Select OleDbCommand selectCommand = new OleDbCommand("select * from [" + iSheetName + "$]"); selectCommand.Connection = this.m_ConnectionToExcelBook; this.m_AdapterForExcelBook = new OleDbDataAdapter(); this.m_AdapterForExcelBook.SelectCommand = selectCommand; this.m_AdapterForExcelBook.Fill(returnDataObject); this.m_CurrentMessage = "Succès - " + returnDataObject.Rows.Count + " records importés "; return returnDataObject; } catch (Exception ex) { //Displays error message this.m_CurrentMessage = "ERREUR " + ex.Message; return null; } } #endregion #region Open read connection /// <summary> /// Opens a READ ONLY connection to the source excel document /// </summary> /// <returns>Returns nothing</returns> public void openConnection() { String chaineConnexion = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + this.m_SourceFileName + ";Extended Properties=\"Excel 8.0;IMEX=1\"";// try { this.m_ConnectionToExcelBook = new OleDbConnection(chaineConnexion); this.m_ConnectionToExcelBook.Open(); this.m_CurrentMessage = "Succès - La connexion à la source a été établie"; } catch (Exception ex) { //If Excel file didn't open, return an error message this.m_CurrentMessage = "Erreur lors de l'ouverture du fichier"; } } /// <summary> /// Closes the connection to the source excel document /// </summary> /// <returns></returns> #endregion #region open write connection /// <summary> /// Opens a WRITE connection to the source excel document. /// </summary> /// <returns></returns> public void openWriteConnection() { String chaineConnexion = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + this.m_SourceFileName + ";Extended Properties=\"Excel 8.0;IMEX=2\""; try { this.m_ConnectionToExcelBook = new OleDbConnection(chaineConnexion); this.m_ConnectionToExcelBook.Open(); this.m_CurrentMessage = "Succès - La connexion à la source a été établie"; } catch (Exception ex) { //Error message if connection didn't open this.m_CurrentMessage = "Erreur lors de l'ouverture du fichier"; } } #endregion #region Close connection public bool closeConnection() { try { this.m_ConnectionToExcelBook.Close(); this.m_CurrentMessage = "Succès - Connection fermée"; } catch (Exception ex) { //Error message if closing didn't success this.m_CurrentMessage = "ERREUR " + ex.Message; return false; } return true; } #endregion }
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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130 using System; using System.Collections; using System.Configuration; using System.Data; using System.Data.OleDb; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; public partial class ExportationExcel : System.Web.UI.Page { MicrosoftExcelClient msExcelClient; SqlInterface db = new SqlInterface(); protected void Page_Load(object sender, EventArgs e) { } // bouton qui execute la procedure d'ecriture dans le fichier + ouverture et fermeture du fichier protected void Button1_Click(object sender, EventArgs e) { String TempFileName = Server.MapPath("~") + "\\temp\\"; msExcelClient = new MicrosoftExcelClient(TempFileName + "matrice_import_article.xls"); msExcelClient.openWriteConnection(); insertValeur(); msExcelClient.closeConnection(); } protected void insertValeur() { string where = " Produit.id_type_produit = 2 and deleted = 0 order by Produit.id_rayon,Produit.id_gamme"; DataSet dt = new DataSet(); dt = db.select("Produit.id_produit","Produit", where); for (int i = 0; i < dt.Tables[0].Rows.Count; i++) { // je récupère les inforamtion a inserer dans excel Hashtable infoArticle = new Hashtable(); infoArticle = Article.GetInfoProduit(dt.Tables[0].Rows[i]["id_produit"].ToString()); Hashtable infoGeneral = new Hashtable(); infoGeneral = Article.GetInfoGeneral(dt.Tables[0].Rows[i]["id_produit"].ToString()); Hashtable infoNombre = new Hashtable(); infoNombre = Article.GetInfoProduitNombre(dt.Tables[0].Rows[i]["id_produit"].ToString()); Hashtable infoComplementaire = new Hashtable(); infoComplementaire = Article.GetInfoComplementaire(dt.Tables[0].Rows[i]["id_produit"].ToString()); Hashtable infoGamme = new Hashtable(); infoGamme = Gamme.getGamme(infoArticle["id_gamme"].ToString()); Hashtable infoRegion = new Hashtable(); infoRegion = Region.getRegion(infoArticle["id_region"].ToString()); Hashtable infoImage = new Hashtable(); infoImage = Article.GetInfoImage(dt.Tables[0].Rows[i]["id_produit"].ToString()); infoGeneral["introduction_produit_us"] = infoGeneral["introduction_produit"]; //préparation de ma requete parametré string champ = "(ref_principal,designation_produit,designation_produit_US,prix_vente,positionnement,est_promo,taux_remise,num_gamme,num_region,introduction_produit,introduction_produit_us"; //,desc_resume,desc_resume_us champ += ",poid,id_type_tva,nbr_produit,nbr_alerte,nbr_indispo,delai,image,vignette,image_zoom,prix_produit_visible,txt_prix_non_visble,txt_prix_non_visble_us,produit_visible,produit_dispo,txt_non_dispo,txt_non_dispo_us,"; champ += "balise_ref,balise_ref_us,desc_ref,desc_ref_us,mot_cle_ref,mot_cle_ref_us,titre_ref,titre_ref_us,choix_opt,titre_opt,choix_opt_us)";//,remise_euro,mise_en_page string param = "(@ref_principal,@designation_produit,@designation_produit_US,@prix_vente,@positionnement),@promo,@taux_remise,@numero_gamme,@numero_region,@introduction_produit,@introduction_produit_us"; //,@desc_resume,@desc_resume_us param += ",@poid,@id_type_tva,@nbr_produit,@nbr_alerte,@nbr_indispo,@delai,@image,@vignette,@image_zoom,@prix_visible,@txt_prix_non_visble,@txt_prix_non_visble_us,@article_visible,@dispo_vente,@txt_non_dispo,@txt_non_dispo_us,"; param += "@balise_ref,@balise_ref_us,@desc_ref,@desc_ref_us,@mot_cle_ref,@mot_cle_ref_us,@titre_ref,@titre_ref_us,@choix_opt,@titre_opt,@choix_opt_us)";//,@remise_euro,@mise_en_page OleDbCommand commande = new OleDbCommand("Insert into [matrice_import_articles$] " + champ + " VALUES " + param); champ = champ.Replace("(", ""); champ = champ.Replace(")", ""); if ((bool)infoNombre["est_promo"]) infoNombre["est_promo"] = "on"; else infoNombre["est_promo"] = "off"; if ((bool)infoComplementaire["prix_produit_visible"]) infoComplementaire["prix_produit_visible"] = "on"; else infoComplementaire["prix_produit_visible"] = "off"; if ((bool)infoComplementaire["produit_visible"]) infoComplementaire["produit_visible"] = "on"; else infoComplementaire["produit_visible"] = "off"; if ((bool)infoComplementaire["produit_dispo"]) infoComplementaire["produit_dispo"] = "on"; else infoComplementaire["produit_dispo"] = "off"; string[] parametres = champ.Split(','); //je valorise mes paramètres for (int j = 0; j < parametres.Length; j++) { parametres[j] = parametres[j].Trim(); if (infoGeneral.ContainsKey(parametres[j])) commande.Parameters.Add(new OleDbParameter("@" + parametres[j], infoGeneral[parametres[j]])); if (infoArticle.ContainsKey(parametres[j])) commande.Parameters.Add(new OleDbParameter("@" + parametres[j], infoArticle[parametres[j]])); if (infoNombre.ContainsKey(parametres[j])) commande.Parameters.Add(new OleDbParameter("@" + parametres[j], infoNombre[parametres[j]])); if (infoComplementaire.ContainsKey(parametres[j])) commande.Parameters.Add(new OleDbParameter("@" + parametres[j], infoComplementaire[parametres[j]])); if (infoGamme.ContainsKey(parametres[j])) commande.Parameters.Add(new OleDbParameter("@" + parametres[j], infoGamme[parametres[j]])); if (infoRegion.ContainsKey(parametres[j])) commande.Parameters.Add(new OleDbParameter("@" + parametres[j], infoRegion[parametres[j]])); if (infoImage.ContainsKey(parametres[j])) commande.Parameters.Add(new OleDbParameter("@" + parametres[j], infoImage[parametres[j]])); } //ecriture dans le fichier. msExcelClient.runNonQuery(commande); } } }
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