Материал из .Net Framework эксперт
Data Binding: DataGrid
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 DataGridDataBiningDatabase : System.Windows.Forms.Form
{
private System.Windows.Forms.DataGrid dataGrid1;
private System.Windows.Forms.ListBox listBox1;
private System.ruponentModel.Container components = null;
public DataGridDataBiningDatabase()
{
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;
//
// DataGridDataBiningDatabase
//
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 = "DataGridDataBiningDatabase";
this.Text = "DataGridDataBiningDatabase";
this.Load += new System.EventHandler(this.DataGridDataBiningDatabase_Load);
((System.ruponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new DataGridDataBiningDatabase());
}
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 DataGridDataBiningDatabase_Load(object sender, System.EventArgs e)
{
FillListBox();
FillDataGrid();
}
}DataGrid Column Asssignment for data binding
using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
public class DataGridColumnAssignment : System.Windows.Forms.Form
{
private System.Windows.Forms.DataGrid employeeDataGrid;
private System.ruponentModel.Container components = null;
public DataGridColumnAssignment()
{
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];
DataGridTableStyle tableStyle = new DataGridTableStyle();
tableStyle.MappingName = dataTable.TableName;
GridColumnStylesCollection columnStyles = tableStyle.GridColumnStyles;
DataGridTextBoxColumn columnStyle = new DataGridTextBoxColumn();
columnStyle.MappingName="ID";
columnStyle.HeaderText = "Employee ID";
columnStyles.Add(columnStyle);
columnStyle = new DataGridTextBoxColumn();
columnStyle.MappingName = "FirstName";
columnStyle.HeaderText="Employee First Name";
columnStyles.Add(columnStyle);
GridTableStylesCollection tableStyles = employeeDataGrid.TableStyles;
tableStyles.Add(tableStyle);
employeeDataGrid.DataSource=dataTable;
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
private void InitializeComponent()
{
this.employeeDataGrid = new System.Windows.Forms.DataGrid();
((System.ruponentModel.ISupportInitialize)(this.employeeDataGrid)).BeginInit();
this.SuspendLayout();
//
// employeeDataGrid
//
this.employeeDataGrid.DataMember = "";
this.employeeDataGrid.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.employeeDataGrid.Location = new System.Drawing.Point(8, 16);
this.employeeDataGrid.Name = "employeeDataGrid";
this.employeeDataGrid.Size = new System.Drawing.Size(448, 176);
this.employeeDataGrid.TabIndex = 0;
//
// DataGridColumnAssignment
//
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.employeeDataGrid});
this.Name = "DataGridColumnAssignment";
this.Text = "DataGridColumnAssignment";
((System.ruponentModel.ISupportInitialize)(this.employeeDataGrid)).EndInit();
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new DataGridColumnAssignment());
}
}DataGrid Column Style setting
using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
public class DataGridColumnStyle : System.Windows.Forms.Form
{
private System.Windows.Forms.DataGrid employeeDataGrid;
private System.ruponentModel.Container components = null;
public DataGridColumnStyle()
{
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];
DataGridTableStyle tableStyle = new DataGridTableStyle();
tableStyle.MappingName = dataTable.TableName;
GridColumnStylesCollection columnStyles = tableStyle.GridColumnStyles;
DataGridTextBoxColumn columnStyle = new DataGridTextBoxColumn();
columnStyle.MappingName="ID";
columnStyle.HeaderText = "Employee ID";
columnStyles.Add(columnStyle);
columnStyle = new DataGridTextBoxColumn();
columnStyle.MappingName = "FirstName";
columnStyle.HeaderText="Employee First Name";
columnStyles.Add(columnStyle);
GridTableStylesCollection tableStyles = employeeDataGrid.TableStyles;
tableStyles.Add(tableStyle);
employeeDataGrid.DataSource=dataTable;
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
private void InitializeComponent()
{
this.employeeDataGrid = new System.Windows.Forms.DataGrid();
((System.ruponentModel.ISupportInitialize)(this.employeeDataGrid)).BeginInit();
this.SuspendLayout();
//
// employeeDataGrid
//
this.employeeDataGrid.DataMember = "";
this.employeeDataGrid.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.employeeDataGrid.Location = new System.Drawing.Point(8, 16);
this.employeeDataGrid.Name = "employeeDataGrid";
this.employeeDataGrid.Size = new System.Drawing.Size(448, 176);
this.employeeDataGrid.TabIndex = 0;
//
// DataGridColumnStyle
//
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.employeeDataGrid});
this.Name = "DataGridColumnStyle";
this.Text = "DataGridColumnStyle";
((System.ruponentModel.ISupportInitialize)(this.employeeDataGrid)).EndInit();
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new DataGridColumnStyle());
}
}DataGrid data binding
using System.Data.SqlClient;
using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
using System.Diagnostics ;
public class SimpleTest : System.Windows.Forms.Form
{
private System.Windows.Forms.DataGrid dataGrid1;
public SimpleTest()
{
this.dataGrid1 = new System.Windows.Forms.DataGrid();
((System.ruponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
this.SuspendLayout();
//
// dataGrid1
//
this.dataGrid1.Anchor = (((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right);
this.dataGrid1.CaptionVisible = false;
this.dataGrid1.DataMember = "";
this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid1.Location = new System.Drawing.Point(8, 8);
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.Size = new System.Drawing.Size(276, 228);
this.dataGrid1.TabIndex = 0;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
this.ClientSize = new System.Drawing.Size(292, 245);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.dataGrid1});
this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.Name = "Form1";
this.Text = "Simple Data Binding";
this.Load += new System.EventHandler(this.Form1_Load);
((System.ruponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new SimpleTest());
}
private void Form1_Load(object sender, System.EventArgs e)
{
string connectionString = @"Data Source=localhost;Initial Catalog=Northwind;Integrated Security=SSPI";
string SQL = "SELECT * FROM Customers";
SqlConnection con = new SqlConnection(connectionString);
SqlCommand com = new SqlCommand(SQL, con);
SqlDataAdapter adapter = new SqlDataAdapter(com);
DataSet ds = new DataSet("Northwind");
con.Open();
adapter.FillSchema(ds,SchemaType.Mapped , "Customers");
adapter.Fill(ds, "Customers");
com.rumandText = "SELECT * FROM Products";
adapter.FillSchema(ds,SchemaType.Mapped , "Products");
adapter.Fill(ds, "Products");
com.rumandText = "SELECT * FROM Suppliers";
adapter.FillSchema(ds,SchemaType.Mapped , "Suppliers");
adapter.Fill(ds, "Suppliers");
con.Close();
dataGrid1.DataSource=ds;
}
}DataGrid DataSource Setting
using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
public class DataGridDataSourceSetting : System.Windows.Forms.Form
{
private System.Windows.Forms.DataGrid dgBugs;
private System.ruponentModel.Container components = null;
public DataGridDataSourceSetting()
{
InitializeComponent();
string connectionString = "server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;";
string commandString = "Select * from Employee";
SqlDataAdapter dataAdapter = new SqlDataAdapter(commandString, connectionString);
DataSet dataSet = new DataSet();
dataAdapter.Fill(dataSet,"Employee");
DataTable dataTable = dataSet.Tables[0];
dgBugs.DataSource=dataTable;
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
private void InitializeComponent()
{
this.dgBugs = new System.Windows.Forms.DataGrid();
((System.ruponentModel.ISupportInitialize)(this.dgBugs)).BeginInit();
this.SuspendLayout();
//
// dgBugs
//
this.dgBugs.DataMember = "";
this.dgBugs.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dgBugs.Location = new System.Drawing.Point(8, 16);
this.dgBugs.Name = "dgBugs";
this.dgBugs.Size = new System.Drawing.Size(448, 176);
this.dgBugs.TabIndex = 0;
//
// DataGridDataSourceSetting
//
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.dgBugs});
this.Name = "DataGridDataSourceSetting";
this.Text = "DataGridDataSourceSetting";
((System.ruponentModel.ISupportInitialize)(this.dgBugs)).EndInit();
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new DataGridDataSourceSetting());
}
}DataGrid Relation
using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
public class DataGridRelation : System.Windows.Forms.Form
{
private System.Windows.Forms.DataGrid dataGrid1;
private System.ruponentModel.Container components = null;
public DataGridRelation()
{
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();
((System.ruponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
this.SuspendLayout();
//
// dataGrid1
//
this.dataGrid1.DataMember = "";
this.dataGrid1.Dock = System.Windows.Forms.DockStyle.Fill;
this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.ReadOnly = true;
this.dataGrid1.Size = new System.Drawing.Size(292, 266);
this.dataGrid1.TabIndex = 0;
//
// DataGridRelation
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 266);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.dataGrid1});
this.Name = "DataGridRelation";
this.Text = "DataGridRelation";
this.Load += new System.EventHandler(this.DataGridRelation_Load);
((System.ruponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new DataGridRelation());
}
const string connstr = "server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;";
private DataSet ds = null;
private void DataGridRelation_Load(object sender, System.EventArgs e)
{
ds = new DataSet();
using ( SqlConnection conn = new SqlConnection( connstr ) )
{
conn.Open();
SqlDataAdapter da1 = new SqlDataAdapter( "select * from developers", conn );
da1.Fill( ds, "developers" );
SqlDataAdapter da2 = new SqlDataAdapter(
"SELECT empno, name " +
"FROM languages",
conn );
da2.Fill( ds, "languages" );
ds.Relations.Add( "language",
ds.Tables[ "developers" ].Columns[ "empno" ],
ds.Tables[ "languages" ].Columns[ "empno" ] );
dataGrid1.DataSource = ds;
dataGrid1.DataMember = "developers";
}
}
}Load data from a select statement to DataGrid
using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
namespace DataGridExample
{
public class DataGridExample : System.Windows.Forms.Form
{
private System.Windows.Forms.DataGrid dataGrid1;
private System.ruponentModel.Container components = null;
public DataGridExample()
{
//
// 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();
((System.ruponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
this.SuspendLayout();
//
// dataGrid1
//
this.dataGrid1.DataMember = "";
this.dataGrid1.Dock = System.Windows.Forms.DockStyle.Fill;
this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.Size = new System.Drawing.Size(292, 266);
this.dataGrid1.TabIndex = 0;
//
// DataGridExample
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 266);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.dataGrid1});
this.Name = "DataGridExample";
this.Text = "DataGrid Example";
this.Load += new System.EventHandler(this.DataGridExample_Load);
((System.ruponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new DataGridExample());
}
private const string connstr = "server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;";
private DataSet ds;
private void DataGridExample_Load(object sender, System.EventArgs e)
{
ds = new DataSet();
using ( SqlConnection conn = new SqlConnection( connstr ) )
{
conn.Open();
SqlDataAdapter da1 = new SqlDataAdapter( "select * from Employee", conn );
da1.Fill( ds, "Employee" );
dataGrid1.DataSource = ds.Tables[ "Employee" ];
}
}
}
}
