'System.Data.SqlClient.SqlException' s'est produite dans system.data.dll ?????

bonjour tout le monde,
jai mis le code suivant :

private void Form1_Load(object sender, System.EventArgs e)

}

pour inserer une nouvelle ligne dans la table "user" dans une base de donneé sql srver, mais il me donne l'exception suivante :" Une exception non gérée du type 'System.Data.SqlClient.SqlException' s'est produite dans system.data.dll

Informations supplémentaires : Erreur système.
 "
NB:j'ai utiliser l'assistant de l'objet sqlDataAdapter qui m'a generer la connection,les commande sql et la dataset.

je me suis bloqué et je ne sais pas koi faire.
j'attens vos suggestions , aide koi ke se soit...
merci. 

private void Form1_Load(object sender, System.EventArgs e)
{ 
   SqlCommand insrt=new SqlCommand("INSERT INTO user (login,password)  VALUES('foad','453788')", sqlConnection1); 
   cn.Open();
   insrt.ExecuteNonQuery(); // c au niveau de cette ligne que l'exception s'est levée
   cn.Close();
}

ta requête était fausse aussi.

Sébastien FERRAND 
[MVP C#]

Informations supplémentaires : Erreur système."
toujour le compilateur arrete dans cette ligne : insrt.ExecuteNonQuery(); 

 

using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

using System.Data;

using System.Data.SqlClient;

namespace tp1

{

/// <summary>

/// Description résumée de Form1.

/// </summary>

public class Form1 : System.Windows.Forms.Form

{

private System.Windows.Forms.TextBox textBox1;

private System.Windows.Forms.TextBox textBox2;

private System.Windows.Forms.Button button1;

private System.Data.SqlClient.SqlDataAdapter sqlDataAdapter1;

private System.Data.SqlClient.SqlCommand sqlSelectCommand1;

private System.Data.SqlClient.SqlCommand sqlInsertCommand1;

private System.Data.SqlClient.SqlCommand sqlUpdateCommand1;

private System.Data.SqlClient.SqlCommand sqlDeleteCommand1;

public System.Data.SqlClient.SqlConnection sqlConnection1;

private tp1.DataSet1 dataSet11;

private System.Windows.Forms.DataGrid dataGrid1;

/// <summary>

/// Variable nécessaire au concepteur.

/// </summary>

private System.ComponentModel.Container components = null;

public Form1()

{

//

// Requis pour la prise en charge du Concepteur Windows Forms

//

InitializeComponent();

//

// TODO : ajoutez le code du constructeur après l'appel à InitializeComponent

//

}

/// <summary>

/// Nettoyage des ressources utilisées.

/// </summary>

protected override void Dispose( bool disposing )

{

if( disposing )

{

if (components != null)

{

components.Dispose();

}

}

base.Dispose( disposing );

}

#region Code généré par le Concepteur Windows Form

/// <summary>

/// Méthode requise pour la prise en charge du concepteur - ne modifiez pas

/// le contenu de cette méthode avec l'éditeur de code.

/// </summary>

private void InitializeComponent()

{

this.textBox1 = new System.Windows.Forms.TextBox();

this.textBox2 = new System.Windows.Forms.TextBox();

this.button1 = new System.Windows.Forms.Button();

this.sqlDataAdapter1 = new System.Data.SqlClient.SqlDataAdapter();

this.sqlDeleteCommand1 = new System.Data.SqlClient.SqlCommand();

this.sqlConnection1 = new System.Data.SqlClient.SqlConnection();

this.sqlInsertCommand1 = new System.Data.SqlClient.SqlCommand();

this.sqlSelectCommand1 = new System.Data.SqlClient.SqlCommand();

this.sqlUpdateCommand1 = new System.Data.SqlClient.SqlCommand();

this.dataSet11 = new tp1.DataSet1();

this.dataGrid1 = new System.Windows.Forms.DataGrid();

((System.ComponentModel.ISupportInitialize)(this.dataSet11)).BeginInit();

((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();

this.SuspendLayout();

//

// textBox1

//

this.textBox1.Location = new System.Drawing.Point(104, 32);

this.textBox1.Name = "textBox1";

this.textBox1.TabIndex = 0;

this.textBox1.Text = "";

//

// textBox2

//

this.textBox2.Location = new System.Drawing.Point(104, 64);

this.textBox2.Name = "textBox2";

this.textBox2.TabIndex = 1;

this.textBox2.Text = "";

//

// button1

//

this.button1.Location = new System.Drawing.Point(168, 96);

this.button1.Name = "button1";

this.button1.Size = new System.Drawing.Size(32, 24);

this.button1.TabIndex = 2;

this.button1.Text = "ok";

//

// sqlDataAdapter1

//

this.sqlDataAdapter1.DeleteCommand = this.sqlDeleteCommand1;

this.sqlDataAdapter1.InsertCommand = this.sqlInsertCommand1;

this.sqlDataAdapter1.SelectCommand = this.sqlSelectCommand1;

this.sqlDataAdapter1.TableMappings.AddRange(new System.Data.Common.DataTableMapping[] {

new System.Data.Common.DataTableMapping("Table", "user", new System.Data.Common.DataColumnMapping[] {

new System.Data.Common.DataColumnMapping("login", "login"),

new System.Data.Common.DataColumnMapping("password", "password")})});

this.sqlDataAdapter1.UpdateCommand = this.sqlUpdateCommand1;

//

// sqlDeleteCommand1

//

this.sqlDeleteCommand1.CommandText = "DELETE FROM [user] WHERE (login = @Original_login) AND (password = @Original_pass" +

"word OR @Original_password IS NULL AND password IS NULL)";

this.sqlDeleteCommand1.Connection = this.sqlConnection1;

this.sqlDeleteCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_login", System.Data.SqlDbType.VarChar, 10, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "login", System.Data.DataRowVersion.Original, null));

this.sqlDeleteCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_password", System.Data.SqlDbType.VarChar, 10, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "password", System.Data.DataRowVersion.Original, null));

//

// sqlConnection1

//

this.sqlConnection1.ConnectionString = "workstation id=LACHGAR;packet size=4096;integrated security=SSPI;data source=lach" +

"gar;persist security info=False;initial catalog=test";

//

// sqlInsertCommand1

//

this.sqlInsertCommand1.CommandText = "INSERT INTO [user] (login, password) VALUES (@login, @password); SELECT login, pa" +

"ssword FROM [user] WHERE (login = @login)";

this.sqlInsertCommand1.Connection = this.sqlConnection1;

this.sqlInsertCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@login", System.Data.SqlDbType.VarChar, 10, "login"));

this.sqlInsertCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@password", System.Data.SqlDbType.VarChar, 10, "password"));

//

// sqlSelectCommand1

//

this.sqlSelectCommand1.CommandText = "SELECT login, password FROM [user]";

this.sqlSelectCommand1.Connection = this.sqlConnection1;

//

// sqlUpdateCommand1

//

this.sqlUpdateCommand1.CommandText = "UPDATE [user] SET login = @login, password = @password WHERE (login = @Original_l" +

"ogin) AND (password = @Original_password OR @Original_password IS NULL AND passw" +

"ord IS NULL); SELECT login, password FROM [user] WHERE (login = @login)";

this.sqlUpdateCommand1.Connection = this.sqlConnection1;

this.sqlUpdateCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@login", System.Data.SqlDbType.VarChar, 10, "login"));

this.sqlUpdateCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@password", System.Data.SqlDbType.VarChar, 10, "password"));

this.sqlUpdateCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_login", System.Data.SqlDbType.VarChar, 10, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "login", System.Data.DataRowVersion.Original, null));

this.sqlUpdateCommand1.Parameters.Add(new System.Data.SqlClient.SqlParameter("@Original_password", System.Data.SqlDbType.VarChar, 10, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "password", System.Data.DataRowVersion.Original, null));

//

// dataSet11

//

this.dataSet11.DataSetName = "DataSet1";

this.dataSet11.Locale = new System.Globalization.CultureInfo("fr-FR");

//

// dataGrid1

//

this.dataGrid1.AlternatingBackColor = System.Drawing.Color.Lavender;

this.dataGrid1.BackColor = System.Drawing.Color.WhiteSmoke;

this.dataGrid1.BackgroundColor = System.Drawing.Color.LightGray;

this.dataGrid1.BorderStyle = System.Windows.Forms.BorderStyle.None;

this.dataGrid1.CaptionBackColor = System.Drawing.Color.LightSteelBlue;

this.dataGrid1.CaptionFont = new System.Drawing.Font("Microsoft Sans Serif", 8F);

this.dataGrid1.CaptionForeColor = System.Drawing.Color.MidnightBlue;

this.dataGrid1.DataMember = "user";

this.dataGrid1.DataSource = this.dataSet11;

this.dataGrid1.FlatMode = true;

this.dataGrid1.Font = new System.Drawing.Font("Microsoft Sans Serif", 8F);

this.dataGrid1.ForeColor = System.Drawing.Color.MidnightBlue;

this.dataGrid1.GridLineColor = System.Drawing.Color.Gainsboro;

this.dataGrid1.GridLineStyle = System.Windows.Forms.DataGridLineStyle.None;

this.dataGrid1.HeaderBackColor = System.Drawing.Color.MidnightBlue;

this.dataGrid1.HeaderFont = new System.Drawing.Font("Microsoft Sans Serif", 8F);

this.dataGrid1.HeaderForeColor = System.Drawing.Color.WhiteSmoke;

this.dataGrid1.LinkColor = System.Drawing.Color.Teal;

this.dataGrid1.Location = new System.Drawing.Point(152, 152);

this.dataGrid1.Name = "dataGrid1";

this.dataGrid1.ParentRowsBackColor = System.Drawing.Color.Gainsboro;

this.dataGrid1.ParentRowsForeColor = System.Drawing.Color.MidnightBlue;

this.dataGrid1.SelectionBackColor = System.Drawing.Color.CadetBlue;

this.dataGrid1.SelectionForeColor = System.Drawing.Color.WhiteSmoke;

this.dataGrid1.Size = new System.Drawing.Size(208, 96);

this.dataGrid1.TabIndex = 3;

//

// Form1

//

this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);

this.ClientSize = new System.Drawing.Size(384, 285);

this.Controls.Add(this.dataGrid1);

this.Controls.Add(this.button1);

this.Controls.Add(this.textBox2);

this.Controls.Add(this.textBox1);

this.Name = "Form1";

this.Text = "Form1";

this.Load += new System.EventHandler(this.Form1_Load);

((System.ComponentModel.ISupportInitialize)(this.dataSet11)).EndInit();

((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();

this.ResumeLayout(false);

}

/// <summary>

/// Point d'entrée principal de l'application.

/// </summary>

[STAThread]

static void Main()

{

Application.Run(new Form1());

}

private void Form1_Load(object sender, System.EventArgs e)

{

sqlInsertCommand1=new SqlCommand("INSERT INTO user(login,password) VALUES('foad','453788')",sqlConnection1);

sqlConnection1.Open();

sqlInsertCommand1.ExecuteNonQuery();

sqlConnection1.Close();

}

}

}