//源代码:
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
namespace DataGrid1
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Data.SqlClient.SqlConnection sqlConnection1;
private System.Data.SqlClient.SqlDataAdapter sqlDataAdapter1;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
private System.Windows.Forms.DataGrid dataGrid1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.PictureBox pictureBox1;
private DataSet ds=new DataSet ();
private MemoryStream pms;
public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows Form Designer generated code
/// <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.sqlConnection1 = new System.Data.SqlClient.SqlConnection();
this.sqlDataAdapter1 = new System.Data.SqlClient.SqlDataAdapter();
this.dataGrid1 = new System.Windows.Forms.DataGrid();
this.button1 = new System.Windows.Forms.Button();
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.SuspendLayout();
//
// sqlConnection1
//
this.sqlConnection1.ConnectionString = "data source=ANDY;initial catalog=Northwind;persist security info=False;user id=sa" +
";workstation id=ANDY;packet size=4096";
this.sqlDataAdapter1.Connection=this.sqlConnection1;
this.sqlDataAdapter1.SelectCommand = "SELECT EmployeeID, LastName, FirstName, Title, TitleOfCourtesy, BirthDate, HireDa" +
"te, Address, City, Region, PostalCode, Country, HomePhone, Extension, Photo, Not" +
"es, ReportsTo, PhotoPath FROM Employees";
;
//
// dataGrid1
//
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(408, 256);
this.dataGrid1.TabIndex = 0;
//
// button1
//
this.button1.Location = new System.Drawing.Point(440, 56);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(88, 24);
this.button1.TabIndex = 2;
this.button1.Text = "button1";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// pictureBox1
//
this.pictureBox1.Location = new System.Drawing.Point(432, 112);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(176, 144);
this.pictureBox1.TabIndex = 3;
this.pictureBox1.TabStop = false;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(616, 273);
this.Controls.AddRange(new System.Windows.Forms.Control[] { this.pictureBox1,
this.button1,
this.dataGrid1});
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
}
#endregion /// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
} private void Form1_Load(object sender, System.EventArgs e)
{
this.sqlDataAdapter1 .Fill(ds,"Employees");
this.dataGrid1.DataSource=ds;
this.dataGrid1.DataMember="Employees";
}
private void button1_Click(object sender, System.EventArgs e)
{
byte[] buff;
DataRow dr=ds.Tables [0].Rows[dataGrid1.CurrentCell.RowNumber];
buff=(byte[])dr["Photo"];
pms=new MemoryStream(buff);
Image im=Image.FromStream(pms);
this.pictureBox1.Image=im;
}
}
}
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
namespace DataGrid1
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Data.SqlClient.SqlConnection sqlConnection1;
private System.Data.SqlClient.SqlDataAdapter sqlDataAdapter1;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
private System.Windows.Forms.DataGrid dataGrid1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.PictureBox pictureBox1;
private DataSet ds=new DataSet ();
private MemoryStream pms;
public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows Form Designer generated code
/// <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.sqlConnection1 = new System.Data.SqlClient.SqlConnection();
this.sqlDataAdapter1 = new System.Data.SqlClient.SqlDataAdapter();
this.dataGrid1 = new System.Windows.Forms.DataGrid();
this.button1 = new System.Windows.Forms.Button();
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.SuspendLayout();
//
// sqlConnection1
//
this.sqlConnection1.ConnectionString = "data source=ANDY;initial catalog=Northwind;persist security info=False;user id=sa" +
";workstation id=ANDY;packet size=4096";
this.sqlDataAdapter1.Connection=this.sqlConnection1;
this.sqlDataAdapter1.SelectCommand = "SELECT EmployeeID, LastName, FirstName, Title, TitleOfCourtesy, BirthDate, HireDa" +
"te, Address, City, Region, PostalCode, Country, HomePhone, Extension, Photo, Not" +
"es, ReportsTo, PhotoPath FROM Employees";
;
//
// dataGrid1
//
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(408, 256);
this.dataGrid1.TabIndex = 0;
//
// button1
//
this.button1.Location = new System.Drawing.Point(440, 56);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(88, 24);
this.button1.TabIndex = 2;
this.button1.Text = "button1";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// pictureBox1
//
this.pictureBox1.Location = new System.Drawing.Point(432, 112);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(176, 144);
this.pictureBox1.TabIndex = 3;
this.pictureBox1.TabStop = false;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(616, 273);
this.Controls.AddRange(new System.Windows.Forms.Control[] { this.pictureBox1,
this.button1,
this.dataGrid1});
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
}
#endregion /// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
} private void Form1_Load(object sender, System.EventArgs e)
{
this.sqlDataAdapter1 .Fill(ds,"Employees");
this.dataGrid1.DataSource=ds;
this.dataGrid1.DataMember="Employees";
}
private void button1_Click(object sender, System.EventArgs e)
{
byte[] buff;
DataRow dr=ds.Tables [0].Rows[dataGrid1.CurrentCell.RowNumber];
buff=(byte[])dr["Photo"];
pms=new MemoryStream(buff);
Image im=Image.FromStream(pms);
this.pictureBox1.Image=im;
}
}
}
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如下提供部分示例代码:
其中IsValidValue()函数用来判断Cell中的数据是否符合要求,根据实际需要进行编写相应的代码。
变量okToValidate用来限定当前Cell的改变,其初值为true,并且只有在dataGrid1_CurrentCellChanged()方法内okToValidate才可设置为false。如果IsValidValue返回true,则表示Cell数据符合条件,相应地改变当前Cell的位置。
private void dataGrid1_CurrentCellChanged(object sender, System.EventArgs e)
{
newCurrentRow = dataGrid1.CurrentCell.RowNumber;
newCurrentCol = dataGrid1.CurrentCell.ColumnNumber;
string newText = dataGrid1[oldCurrentRow, oldCurrentCol].ToString();
if( okToValidate && !IsValidValue(oldCurrentRow, oldCurrentCol, newText))
{
MessageBox.Show("Entry Error");
okToValidate = false;
dataGrid1.CurrentCell = new DataGridCell(oldCurrentRow, oldCurrentCol);
okToValidate = true;
}
oldCurrentRow = newCurrentRow;
oldCurrentCol = newCurrentCol;
} — 微软全球技术中心 VB支持中心本贴子以“现状”提供且没有任何担保,同时也没有授予任何权利。具体事项可参见使用条款(http://support.microsoft.com/directory/worldwide/zh-cn/community/terms_chs.asp)。
为了为您创建更好的讨论环境,请参加我们的用户满意度调查(http://support.microsoft.com/directory/worldwide/zh-cn/community/survey.asp?key=(S,49854782))。
如下提供部分示例代码:
其中IsValidValue()函数用来判断Cell中的数据是否符合要求,根据实际需要进行编写相应的代码。
变量okToValidate用来限定当前Cell的改变,其初值为true,并且只有在dataGrid1_CurrentCellChanged()方法内okToValidate才可设置为false。如果IsValidValue返回true,则表示Cell数据符合条件,相应地改变当前Cell的位置。
private void dataGrid1_CurrentCellChanged(object sender, System.EventArgs e)
{
newCurrentRow = dataGrid1.CurrentCell.RowNumber;
newCurrentCol = dataGrid1.CurrentCell.ColumnNumber;
string newText = dataGrid1[oldCurrentRow, oldCurrentCol].ToString();
if( okToValidate && !IsValidValue(oldCurrentRow, oldCurrentCol, newText))
{
MessageBox.Show("Entry Error");
okToValidate = false;
dataGrid1.CurrentCell = new DataGridCell(oldCurrentRow, oldCurrentCol);
okToValidate = true;
}
oldCurrentRow = newCurrentRow;
oldCurrentCol = newCurrentCol;
} — 微软全球技术中心 VB支持中心本贴子以“现状”提供且没有任何担保,同时也没有授予任何权利。具体事项可参见使用条款(http://support.microsoft.com/directory/worldwide/zh-cn/community/terms_chs.asp)。
为了为您创建更好的讨论环境,请参加我们的用户满意度调查(http://support.microsoft.com/directory/worldwide/zh-cn/community/survey.asp?key=(S,49854782))。
如下提供部分示例代码:
其中IsValidValue()函数用来判断Cell中的数据是否符合要求,根据实际需要进行编写相应的代码。
变量okToValidate用来限定当前Cell的改变,其初值为true,并且只有在dataGrid1_CurrentCellChanged()方法内okToValidate才可设置为false。如果IsValidValue返回true,则表示Cell数据符合条件,相应地改变当前Cell的位置。
private void dataGrid1_CurrentCellChanged(object sender, System.EventArgs e)
{
newCurrentRow = dataGrid1.CurrentCell.RowNumber;
newCurrentCol = dataGrid1.CurrentCell.ColumnNumber;
string newText = dataGrid1[oldCurrentRow, oldCurrentCol].ToString();
if( okToValidate && !IsValidValue(oldCurrentRow, oldCurrentCol, newText))
{
MessageBox.Show("Entry Error");
okToValidate = false;
dataGrid1.CurrentCell = new DataGridCell(oldCurrentRow, oldCurrentCol);
okToValidate = true;
}
oldCurrentRow = newCurrentRow;
oldCurrentCol = newCurrentCol;
} — 微软全球技术中心 VB支持中心本贴子以“现状”提供且没有任何担保,同时也没有授予任何权利。具体事项可参见使用条款(http://support.microsoft.com/directory/worldwide/zh-cn/community/terms_chs.asp)。
为了为您创建更好的讨论环境,请参加我们的用户满意度调查(http://support.microsoft.com/directory/worldwide/zh-cn/community/survey.asp?key=(S,49854782))。