WinForm 2.0 textBox作为参数的查询，显示在DataGridView

.cs文件内容:

private void GetData()

{

try

{

// Specify a connection string. Replace the given value with a

// valid connection string for a Northwind SQL Server sample

// database accessible to your system.

String connectionString =

"Integrated Security=SSPI;Persist Security Info=False;" +

"Initial Catalog=Northwind;Data Source=localhost";

SqlConnection connection = new SqlConnection(connectionString);

// Create a DataSet.

DataSet data = new DataSet();

data.Locale = System.Globalization.CultureInfo.InvariantCulture;

// Add data from the Customers table to the DataSet.

string sql = "select * from Customers where CustomerID = '"+this.textBox1.Text+"'";

SqlDataAdapter masterDataAdapter = new

SqlDataAdapter(sql, connection);

masterDataAdapter.Fill(data, "Customers");

this.dataGridView1.DataSource = data.Tables[0].DefaultView;

}

catch (SqlException)

{

MessageBox.Show("To run this example, replace the value of the " +

"connectionString variable with a connection string that is " +

"valid for your system.");

}

}

private void textBox1_TextChanged(object sender, EventArgs e)

{

GetData();

}

Designer.cs文件内容

namespace WindowsApplication9

{

partial class Form1

{

/// <summary>

/// 必需的设计器变量。

/// </summary>

private System.ComponentModel.IContainer components = null;

/// <summary>

/// 清理所有正在使用的资源。

/// </summary>

/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>

protected override void Dispose(bool disposing)

{

if (disposing && (components != null))

{

components.Dispose();

}

base.Dispose(disposing);

}

#region Windows 窗体设计器生成的代码

/// <summary>

/// 设计器支持所需的方法 - 不要

/// 使用代码编辑器修改此方法的内容。

/// </summary>

private void InitializeComponent()

{

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

this.dataGridView1 = new System.Windows.Forms.DataGridView();

((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();

this.SuspendLayout();

//

// textBox1

//

this.textBox1.Location = new System.Drawing.Point(3, 3);

this.textBox1.Name = "textBox1";

this.textBox1.Size = new System.Drawing.Size(100, 21);

this.textBox1.TabIndex = 0;

this.textBox1.TextChanged += new System.EventHandler(this.textBox1_TextChanged);

//

// dataGridView1

//

this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;

this.dataGridView1.Location = new System.Drawing.Point(3, 30);

this.dataGridView1.Name = "dataGridView1";

this.dataGridView1.RowTemplate.Height = 23;

this.dataGridView1.Size = new System.Drawing.Size(409, 171);

this.dataGridView1.TabIndex = 1;

//

// Form1

//

this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);

this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

this.ClientSize = new System.Drawing.Size(416, 206);

this.Controls.Add(this.dataGridView1);

this.Controls.Add(this.textBox1);

this.Name = "Form1";

this.Text = "Form1";

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

((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();

this.ResumeLayout(false);

this.PerformLayout();

}

#endregion

private System.Windows.Forms.TextBox textBox1;

private System.Windows.Forms.DataGridView dataGridView1;

}

}