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| using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using Excel = Microsoft.Office.Interop.Excel;
//
using System.IO;
namespace csv_dataGrid
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.DataGrid dataGrid1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.dataGrid1 = new System.Windows.Forms.DataGrid();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
this.SuspendLayout();
//
// dataGrid1
//
this.dataGrid1.DataMember = "";
this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid1.Location = new System.Drawing.Point(8, 40);
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.Size = new System.Drawing.Size(540, 327);
this.dataGrid1.TabIndex = 0;
//
// button1
//
this.button1.Location = new System.Drawing.Point(251, 8);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(145, 24);
this.button1.TabIndex = 2;
this.button1.Text = "Importer_Excel";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(16, 8);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(142, 24);
this.button2.TabIndex = 3;
this.button2.Text = "Importer_CSV";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(594, 379);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.dataGrid1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void Form1_Load(object sender, System.EventArgs e)
{
// on cree une table
DataTable dt = new DataTable("test");
// on cree les colonnes
dt.Columns.Add("t1",System.Type.GetType("System.String"));
dt.Columns.Add("i1",System.Type.GetType("System.Int32"));
dt.Columns.Add("t2",System.Type.GetType("System.String"));
// on insert une nvelle ligne
DataRow dr = dt.NewRow();
dr["t1"] = "test01";
dr["i1"] = 10;
dr["t2"] = "test02";
// on ajoute la ligne
dt.Rows.Add(dr);
// on affiche la table
dataGrid1.DataSource = dt;
}
private void button1_Click(object sender, System.EventArgs e)
{
// on cree une table
DataTable dt = new DataTable("test");
// on cree les colonnes
dt.Columns.Add("t1", System.Type.GetType("System.String"));
dt.Columns.Add("t2", System.Type.GetType("System.String"));
dt.Columns.Add("t3", System.Type.GetType("System.String"));
// on lit et on insert une nvelle ligne
Excel.Application xlApp;
Excel.Workbook xlWorkBook;
Excel.Worksheet xlWorkSheet;
Excel.Range range;
string str1, str2, str3;
int rCnt = 0;
xlApp = new Excel.ApplicationClass();
xlWorkBook = xlApp.Workbooks.Open("C:/Documents and Settings/zakaria/Bureau/lecture-fichier-csv-et-affichage-dans-un-datagrid/bin/Debug/fichier.xlsx", 0, true, 5, "", "", true, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);
int nbr_xlWorkSheet = xlWorkBook.Worksheets.Count;
for (int k = 1; k <= nbr_xlWorkSheet; k++)
{
xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(k);
range = xlWorkSheet.UsedRange;
for (rCnt = 1; rCnt <= range.Rows.Count; rCnt++)
{
str1 = (string)(range.Cells[rCnt, 1] as Excel.Range).Value2;
str2 = (string)(range.Cells[rCnt, 2] as Excel.Range).Value2;
str3 = (string)(range.Cells[rCnt, 3] as Excel.Range).Value2;
DataRow dr = dt.NewRow();
dr["t1"] = str1;
dr["t2"] = str2;
dr["t3"] = str3;
// on ajoute la ligne
dt.Rows.Add(dr);
}
dataGrid1.DataSource = dt;
releaseObject(xlWorkSheet);
}
xlWorkBook.Close(false, null, null);
xlApp.Quit();
//releaseObject(xlWorkSheet);
releaseObject(xlWorkBook);
releaseObject(xlApp);
}
private void releaseObject(object obj)
{
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
obj = null;
}
catch (Exception ex)
{
obj = null;
MessageBox.Show("Unable to release the Object " + ex.ToString());
}
finally
{
GC.Collect();
}
}
private void button2_Click(object sender, System.EventArgs e)
{
// on cree une table
DataTable dt = new DataTable("test");
// on cree les colonnes
dt.Columns.Add("t1",System.Type.GetType("System.String"));
// on lit et on insert une nvelle ligne
StreamReader fichier = File.OpenText("fichier.csv");
while(fichier.Peek() >= 0)
{
// on lit 1 ligne et on ajoute
string ligne = fichier.ReadLine();
string[] vals = ligne.Split(';');
DataRow dr = dt.NewRow();
dr["t1"] = ligne.ToString();
// on ajoute la ligne
dt.Rows.Add(dr);
}
fichier.Close();
// on genere le tableau
dataGrid1.DataSource = dt;
}
private void button3_Click(object sender, EventArgs e)
{
dataGrid1.Controls.Clear();
}
}
} |
Problème affichage fichier csv après execution d'un code C# qui lit ce fichier csv
Répondre avec citation
Envoyé par zakaros
Je trouve çà louche quand même, ton programme ouvre tous les fichiers csv ??? Et même si ils sont enregistré, ca ne change pas avec un reboot.
, en plus toutes les lignes commencent au début (i.e premier colonne !) .
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