в 15:31, 26 мая 2010

2010-05-26T15:31:53Z

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2010-05-26T12:19:10Z

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==Binding ListBox to a Database table==

<source lang="csharp">using System;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
public class ListBoxBindingTable : System.Windows.Forms.Form
{
private System.Windows.Forms.ListBox employeeList;
private System.ruponentModel.Container components = null;
public ListBoxBindingTable()
{
InitializeComponent();
string connectionString = "server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;";
string commandString = "Select ID, FirstName from Employee";
SqlDataAdapter dataAdapter = new SqlDataAdapter(commandString, connectionString);
DataSet dataSet = new DataSet();
dataAdapter.Fill(dataSet,"Employee");
DataTable dataTable = dataSet.Tables[0];
employeeList.DataSource= dataTable;
employeeList.DisplayMember = "Employee";

}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
private void InitializeComponent()
{
this.employeeList = new System.Windows.Forms.ListBox();
this.SuspendLayout();
this.employeeList.Location = new System.Drawing.Point(8, 8);
this.employeeList.Name = "employeeList";
this.employeeList.Size = new System.Drawing.Size(272, 95);
this.employeeList.TabIndex = 0;
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 133);
this.Controls.AddRange(new System.Windows.Forms.Control[] {this.employeeList});
this.Name = "ListBoxBindingTable";
this.Text = "ListBoxBindingTable";
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new ListBoxBindingTable());
}
}</source>

==Data Binding: ListBox==

<source lang="csharp">using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.OleDb;
using System.Data.SqlClient;
public class ListBoxDataBindingDatabase : System.Windows.Forms.Form
{
private System.Windows.Forms.DataGrid dataGrid1;
private System.Windows.Forms.ListBox listBox1;
private System.ruponentModel.Container components = null;
public ListBoxDataBindingDatabase()
{
InitializeComponent();
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
private void InitializeComponent()
{
this.dataGrid1 = new System.Windows.Forms.DataGrid();
this.listBox1 = new System.Windows.Forms.ListBox();
((System.ruponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
this.SuspendLayout();
//
// dataGrid1
//
this.dataGrid1.DataMember = "";
this.dataGrid1.Location = new System.Drawing.Point(8, 24);
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.Size = new System.Drawing.Size(192, 232);
this.dataGrid1.TabIndex = 0;
//
// listBox1
//
this.listBox1.Location = new System.Drawing.Point(216, 32);
this.listBox1.Name = "listBox1";
this.listBox1.Size = new System.Drawing.Size(104, 212);
this.listBox1.TabIndex = 1;
//
// ListBoxDataBindingDatabase
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(480, 277);
this.Controls.AddRange(new System.Windows.Forms.Control[] {this.listBox1, this.dataGrid1});
this.Name = "ListBoxDataBindingDatabase";
this.Text = "ListBoxDataBindingDatabase";
this.Load += new System.EventHandler(this.ListBoxDataBindingDatabase_Load);
((System.ruponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new ListBoxDataBindingDatabase());
}
private void FillDataGrid()
{
string ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=c:\Northwind.mdb";
OleDbConnection conn = new OleDbConnection(ConnectionString);
string SQL = "SELECT * FROM Customers";
conn.Open();
OleDbDataAdapter adapter = new OleDbDataAdapter(SQL, conn);
DataSet ds = new DataSet("Customers");
adapter.Fill(ds, "Customers");
dataGrid1.DataSource = ds.DefaultViewManager;
conn.Close();
}
private void FillListBox()
{
string ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=c:\Northwind.mdb";
OleDbConnection conn = new OleDbConnection(ConnectionString);
string SQL = "SELECT * FROM Customers";
conn.Open();
OleDbDataAdapter adapter = new OleDbDataAdapter(SQL, conn);
DataSet ds = new DataSet("Customers");
adapter.Fill(ds, "Customers");
listBox1.DataSource = ds.DefaultViewManager;
listBox1.DisplayMember = "CustomerID";
conn.Close();
}
private void ListBoxDataBindingDatabase_Load(object sender, System.EventArgs e)
{
FillListBox();
FillDataGrid();
}
}</source>

==Fill ListBox with data from a DataReader==

<source lang="csharp">using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
public class ListBoxFillFromDataReader : System.Windows.Forms.Form
{
private System.Data.SqlClient.SqlConnection connection;
private System.Data.DataSet dataSet;
private System.Data.SqlClient.SqlCommand command;
private System.Data.SqlClient.SqlDataAdapter dataAdapter;
private System.Windows.Forms.ListBox lbBugs;
private System.ruponentModel.Container components = null;
public ListBoxFillFromDataReader()
{
InitializeComponent();
string connectionString = "server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;";
using (connection = new System.Data.SqlClient.SqlConnection(connectionString))
{
connection.Open();
using(dataSet = new System.Data.DataSet())
{
dataSet.CaseSensitive=true;
string commandString = "Select ID, FirstName from Employee";
command = new System.Data.SqlClient.SqlCommand();
command.Connection=connection;
command.rumandText= commandString;
using (SqlDataReader dataReader = command.ExecuteReader())
{
while (dataReader.Read())
{
object bugID = dataReader["ID"];
object description = dataReader["FirstName"];
lbBugs.Items.Add(bugID.ToString() + ": " + description.ToString());
}
}
}
}
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
private void InitializeComponent()
{
this.lbBugs = new System.Windows.Forms.ListBox();
this.SuspendLayout();
this.lbBugs.Location = new System.Drawing.Point(16, 8);
this.lbBugs.Name = "lbBugs";
this.lbBugs.Size = new System.Drawing.Size(216, 147);
this.lbBugs.TabIndex = 0;
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(264, 181);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.lbBugs});
this.Name = "ListBoxFillFromDataReader";
this.Text = "ListBoxFillFromDataReader";
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new ListBoxFillFromDataReader());
}
}</source>

==Read data from database table add it to a ListBox==

<source lang="csharp">using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
public class ListBoxTableReadingFill : System.Windows.Forms.Form
{
private System.Data.SqlClient.SqlConnection myConnection;
private System.Data.DataSet myDataSet;
private System.Data.SqlClient.SqlCommand myCommand;
private System.Data.SqlClient.SqlDataAdapter myDataAdapter;
private System.Windows.Forms.ListBox employeeList;
private System.ruponentModel.Container components = null;
public ListBoxTableReadingFill()
{
InitializeComponent();
string connectionString = "server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;";
myConnection = new System.Data.SqlClient.SqlConnection(connectionString);
myConnection.Open();
myDataSet = new System.Data.DataSet();
myDataSet.CaseSensitive=true;
string commandString = "Select ID, FirstName from Employee";

myCommand = new System.Data.SqlClient.SqlCommand();
myCommand.Connection=myConnection;
myCommand.rumandText= commandString;
myDataAdapter = new SqlDataAdapter();
myDataAdapter.SelectCommand = myCommand;
myDataAdapter.TableMappings.Add("Table", "Employee");
myDataAdapter.Fill(myDataSet);

DataTable myDataTable = myDataSet.Tables[0];

foreach (DataRow dataRow in myDataTable.Rows)
{
employeeList.Items.Add(dataRow["ID"] + ":" + dataRow["FirstName"] );
}
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
private void InitializeComponent()
{
this.employeeList = new System.Windows.Forms.ListBox();
this.SuspendLayout();
//
// employeeList
//
this.employeeList.Location = new System.Drawing.Point(16, 8);
this.employeeList.Name = "employeeList";
this.employeeList.Size = new System.Drawing.Size(216, 147);
this.employeeList.TabIndex = 0;
//
// ListBoxTableReadingFill
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(464, 205);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.employeeList});
this.Name = "ListBoxTableReadingFill";
this.Text = "ListBoxTableReadingFill";
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new ListBoxTableReadingFill());
}
}</source>

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Csharp/CSharp Tutorial/ADO.Net/DataBinding ListBox - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия