Pb débutant : Requête de recherche

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Fo0Zie Messages postés 95 Date d'inscription lundi 11 février 2008 Statut Membre Dernière intervention 8 juin 2009 - 24 avril 2009 à 13:14
Fo0Zie Messages postés 95 Date d'inscription lundi 11 février 2008 Statut Membre Dernière intervention 8 juin 2009 - 26 avril 2009 à 20:09
Bonjour à tous,

J'ai une application en C#, base de données sous SQL Server 2005, développé avec Visual Studio 2005.

Je souhaite faire une recherche simple, à partir de 3 critères saisis dans des textbox.
Voici ma table client :
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<![endif]-->client
(id, nom,prenom, rue, cp, ville )

Sur mon formulaire de recherche j'ai une texbox pour le nom, le prénom et la ville.

Lorsque je saisi dans les 3 textbox pour effectuer une recherche, j'ai un résultat correct.

Lorsque je saisi dans 1 ou 2 textbox, il me sort à chaque fois la liste de tous les clients.

Voici ma requete :

 if (txtBoxNomCli.Text ! = "" || txtBoxPrenomCli.Text != "" || txtBoxVilleCli.Text != "")
{
                SqlCommand cmd = newSqlCommand("SELECT nom AS Nom, prenom AS Prénom, rue AS Rue, cp AS 'Code postal', ville AS Ville FROM client WHERE nom LIKE @nom OR prenom LIKE @prenom OR ville LIKE @ville ", this.monSQL.GetSqlCnx());

                cmd.Parameters.Add("@nom", SqlDbType.VarChar);
                cmd.Parameters["@nom"].Value = '%' + this.txtBoxNomCli.Text + '%';
                cmd.Parameters.Add("@prenom", SqlDbType.VarChar);
                cmd.Parameters["@prenom"].Value = '%' + this.txtBoxPrenomCli.Text + '%';
                cmd.Parameters.Add("@ville", SqlDbType.VarChar);
                cmd.Parameters["@ville"].Value = '%' + this.txtBoxVilleCli.Text + '%';

Voila si quelqu'un pourrait m'aider se serait sympa.

Merci d'avance.

2 réponses

gperuch Messages postés 40 Date d'inscription dimanche 18 janvier 2009 Statut Membre Dernière intervention 2 février 2012 1
26 avril 2009 à 20:06
Ton probleme est que tu met des "or" à la place des "and"

si ton champ texte  est vide tu te retrouves avec un penom like '%%' qui correspond à tout tes champs

exemple
champ nom = "dup"
champ prenom = "pier"
champ ville = ""

donc tes conditions vont etre egales à
where nom like '%dup%'
or prenom like '%pier%'
or ville = '%%'

donc toute les villes correspondent

mais avec des and
where nom like '%dup%'
 and prenom like '%pier%'
 
and ville = '%%'

seul les dupond pierre vont matcher...

greg
3
Fo0Zie Messages postés 95 Date d'inscription lundi 11 février 2008 Statut Membre Dernière intervention 8 juin 2009 1
26 avril 2009 à 20:09
Ok, merci pour ces explications, c'était vraiment simple.
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