C# WinForm: DataGrid中如何双击取得当前行数据？

http://xml.sz.luohuedu.net/xml/ShowDetail.asp?id=C83C3A4B-8571-4CE6-FBAC-35DC28D14389

dataGrid1[dataGrid1.CurrentRowIndex,0].ToString();
^^当前行； ^->列号

1、首先，双击cell根本不会触发你的DataGrid_DoubleClick事件，所以不要在这个地方费工夫了。
2、取得当前行的语法是：DataRow currentRow = ((DataRowView)this.BindingContext[dataset_name, "datatable_name"].Current).Row;3、如果你确实需要在cell上响应双击事件，大致思路是：通过datagrid的controls属性，写一个循环，为每个DataGridTextBox绑定双击事件，因为双击被这些DataGridTextBox不可挽回地剥夺了。
4、如果你要响应回车事件，没门！除非派生自己的Column Style。
9、DataGrid是设计的很糟糕的一个烂东西，许多情况下，不如Delphi的DBGrid好用！

在：
private void dataGrid1_CurrentCellChanged(object sender, System.EventArgs e)
{
int iRowNum=this.dataGrid1.CurrentCell.RowNumber;
//MessageBox.Show("当前行索引值是："+iRowNum.ToString());
}
事件中取得datagrid的选中行的索引值，剩下的事情你就可以用此iRowNum去取datagrid中任意的cell中的值了，比如想取datagrid中当前选中行的第一列的值：
string myValue=this.datagrid[iRowNum,0].ToString();
同楼上所说的，也可以那样处理：
DataTable dt=this.dataset.tabel["mytalbe"];
DataRow row = dt.rows[iRowNum];//this.datagrid.DataSource[iRowNum];
row["字段"].tostring就是你要的东西

思路：
使用hitTest来捕捉doubleClick
再根据坐标到datagrid上去找行，我的思路很麻烦，但一定可以实现。

你用DataView做非常方便。不过你的把DataView和表格绑定。一般DataTable都用默认的DataView

下面的代码实现了如何得到点击的当前行的数据GetCurrentClickRow.aspx<%@ Page Language="vb" EnableViewState="False" AutoEventWireup="false"
Codebehind="GetCurrentClickRow.aspx.vb" Inherits="aspxWeb.mengxianhui.com.GetCurrentClickRow"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
  <HEAD>
    <title>GetCurrentClickRow</title>
    <meta content="Microsoft Visual Studio.NET 7.0" name="GENERATOR">
    <meta content="Visual Basic 7.0" name="CODE_LANGUAGE">
    <meta content="JavaScript" name="vs_defaultClientScript">
    <meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
  </HEAD>
  <body style="FONT-SIZE: 9pt" MS_POSITIONING="GridLayout">
    <form id="Form1" method="post" runat="server">
      <asp:Panel id="Panel1" runat="server">
        <asp:Label id="label1" Runat="server"></asp:Label>
        <asp:DataGrid id="DataGrid1" runat="server" AutoGenerateColumns="False" CellPadding="4"
        BackColor="White" BorderWidth="1px" BorderStyle="None" BorderColor="#CC9966">
          <ItemStyle ForeColor="#330099" BackColor="White" Font-Size="9pt"></ItemStyle>
          <HeaderStyle Font-Bold="True" ForeColor="#FFFFCC" BackColor="#990000" Font-Size="9pt"></HeaderStyle>
          <Columns>
            <asp:BoundColumn DataField="Title"></asp:BoundColumn>
            <asp:BoundColumn DataField="CreateDate"></asp:BoundColumn>
          </Columns>
        </asp:DataGrid>
      </asp:Panel>
    </form>
  </body>
</HTML>GetCurrentClickRow.aspx.vbImports System
Imports System.Data
Imports System.Data.OleDbPublic Class GetCurrentClickRow
  Inherits System.Web.UI.Page
  Protected WithEvents Panel1 As System.Web.UI.WebControls.Panel
  Protected WithEvents label1 As System.Web.UI.WebControls.Label
  Protected WithEvents DataGrid1 As System.Web.UI.WebControls.DataGrid#Region " Web Form Designer Generated Code "
  <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
  End Sub  Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) _
   Handles MyBase.Init
    InitializeComponent()
  End Sub#End Region  Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) _
   Handles MyBase.Load
    label1.Text = "获得所点击行的例子"
    label1.Font.Bold = True
    Panel1.HorizontalAlign = HorizontalAlign.Center
    DataGrid1.Columns(0).HeaderText = "文章标题"
    DataGrid1.Columns(1).HeaderText = "发布时间"
    DataGrid1.HeaderStyle.HorizontalAlign = HorizontalAlign.Center
    DataGrid1.AlternatingItemStyle.BackColor = System.Drawing.Color.Ivory
    DataGrid1.HorizontalAlign = HorizontalAlign.Center
    Dim cnString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" _
     + Server.MapPath("Test.mdb")
    Dim cn As New OleDbConnection(cnString)
    cn.Open()
    Dim strSQL As String = "SELECT TOP 10 Title,CreateDate FROM Document ORDER BY CreateDate DESC"
    Dim cmd As New OleDbCommand(strSQL, cn)
    DataGrid1.DataSource = cmd.ExecuteReader
    DataGrid1.DataBind()
    cn.Close()
    cn.Dispose()
    cn = Nothing
  End Sub  Private Sub DataGrid1_ItemDataBound(ByVal sender As Object, _
ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs) Handles DataGrid1.ItemDataBound
    If e.Item.ItemType = ListItemType.AlternatingItem Or e.Item.ItemType = ListItemType.Item Then
      e.Item.Attributes.Add("onclick", "this.style.backgroundColor='#FFCC66';alert('您点击的是：\n\n第" _
+ e.Item.ItemIndex.ToString() + "行\n\n文章标题是：" + e.Item.Cells(0).Text.Replace(",", "\'") + "')")
      e.Item.Cells(1).Text = Format(System.Convert.ToDateTime(e.Item.Cells(1).Text.ToString()), "yyyy年M月d日")
      If e.Item.Cells(0).Text.Length > 30 Then
        e.Item.Attributes.Add("Title", e.Item.Cells(0).Text)
        e.Item.Cells(0).Text = e.Item.Cells(0).Text.Substring(0, 28) + "…"
      End If
    End If
  End SubEnd Class

以下是C#代码namespace DataGridDoubleClick
{
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data; public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.DataGrid dataGrid1;
private DataSet myDataSet;
DateTime gridMouseDownTime;
    private System.Windows.Forms.Label label1;

private System.ComponentModel.Container components = null; public Form1()
{
InitializeComponent();
gridMouseDownTime = DateTime.Now;
SetUp();
} private void SetUp()
{
// 用2个Table和1和Relation创建DataSet
MakeDataSet();
// 数据绑定
dataGrid1.SetDataBinding(myDataSet, "Customers"); //添加样式
AddCustomDataTableStyle();
} private void MakeDataSet()
{
// 创建DataSet.
myDataSet = new DataSet("myDataSet");

// 创建2个DataTables.
DataTable tCust = new DataTable("Customers");

// 创建两个列，并添加到第一个表
DataColumn cCustID = new DataColumn("custID");
DataColumn cCustName = new DataColumn("custName");
DataColumn cCurrent = new DataColumn("custCity");
tCust.Columns.Add(cCustID);
tCust.Columns.Add(cCustName);
tCust.Columns.Add(cCurrent); // 把tables添加到DataSet.
myDataSet.Tables.Add(tCust);


/* 计算tables.对每个客户，创建DataRow变量 */
DataRow newRow1;

// 添加记录到 Customers Table.
for(int i = 1; i < 4; i++)
{
newRow1 = tCust.NewRow();
newRow1["custID"] = (100*i).ToString();
tCust.Rows.Add(newRow1);
} tCust.Rows[0]["custName"] = "【孟宪会之精彩世界】";
tCust.Rows[1]["custName"] = "net_lover";
tCust.Rows[2]["custName"] = "http://xml.sz.luohuedu.net/";
tCust.Rows[0]["custCity"] = "北京";
tCust.Rows[1]["custCity"] = "上海";
tCust.Rows[2]["custCity"] = "河南";
} private void AddCustomDataTableStyle()
{
DataGridTableStyle ts1 = new DataGridTableStyle();
ts1.MappingName = "Customers";
// 设置属性
ts1.AlternatingBackColor = Color.LightGray; // 添加Textbox列样式，以便我们捕捉鼠标事件
DataGridTextBoxColumn TextCol = new DataGridTextBoxColumn();
TextCol.MappingName = "custID";
TextCol.HeaderText = "序号";
TextCol.Width = 100; //添加事件处理器
TextCol.TextBox.MouseDown += new MouseEventHandler(TextBoxMouseDownHandler);
TextCol.TextBox.DoubleClick += new EventHandler(TextBoxDoubleClickHandler);
ts1.GridColumnStyles.Add(TextCol); TextCol = new DataGridTextBoxColumn();
TextCol.MappingName = "custName";
TextCol.HeaderText = "姓名";
TextCol.Width = 100;
//添加事件处理器
TextCol.TextBox.MouseDown += new MouseEventHandler(TextBoxMouseDownHandler);
TextCol.TextBox.DoubleClick += new EventHandler(TextBoxDoubleClickHandler);
ts1.GridColumnStyles.Add(TextCol); TextCol = new DataGridTextBoxColumn();
TextCol.MappingName = "custCity";
TextCol.HeaderText = "地址";
TextCol.Width = 100;
//添加事件处理器
TextCol.TextBox.MouseDown += new MouseEventHandler(TextBoxMouseDownHandler);
TextCol.TextBox.DoubleClick += new EventHandler(TextBoxDoubleClickHandler);
ts1.GridColumnStyles.Add(TextCol);

dataGrid1.TableStyles.Add(ts1);

} protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows Form Designer generated code
private void InitializeComponent()
{
      this.dataGrid1 = new System.Windows.Forms.DataGrid();
      this.label1 = new System.Windows.Forms.Label();
      ((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
      this.SuspendLayout();
      //
      // dataGrid1
      //
      this.dataGrid1.CaptionBackColor = System.Drawing.SystemColors.Info;
      this.dataGrid1.CaptionForeColor = System.Drawing.SystemColors.WindowText;
      this.dataGrid1.CaptionVisible = false;
      this.dataGrid1.DataMember = "";
      this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
      this.dataGrid1.Location = new System.Drawing.Point(11, 9);
      this.dataGrid1.Name = "dataGrid1";
      this.dataGrid1.Size = new System.Drawing.Size(368, 144);
      this.dataGrid1.TabIndex = 0;
      this.dataGrid1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.dataGrid1_MouseDown);
      //
      // label1
      //
      this.label1.Location = new System.Drawing.Point(4, 166);
      this.label1.Name = "label1";
      this.label1.Size = new System.Drawing.Size(383, 23);
      this.label1.TabIndex = 1;
      this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
      this.label1.Click += new System.EventHandler(this.Form1_Click);
      //
      // Form1
      //
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(387, 201);
      this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                  this.label1,
                                                                  this.dataGrid1});
      this.Name = "Form1";
      this.Text = "鼠标双击事件的例子";
      ((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
      this.ResumeLayout(false);    }
#endregion [STAThread]
static void Main()
{
Application.Run(new Form1());
} private void TextBoxDoubleClickHandler(object sender, EventArgs e)
{
MessageBox.Show("双击事件发生。鼠标双击到的值："+((TextBox)sender).Text.ToString());
} private void TextBoxMouseDownHandler(object sender, MouseEventArgs e)
{
if(DateTime.Now < gridMouseDownTime.AddMilliseconds(SystemInformation.DoubleClickTime))
{
  MessageBox.Show("双击事件发生。鼠标双击到的值："+((TextBox)sender).Text.ToString());
}
label1.Text = "TextBox 鼠标按下了。  ";
} private void dataGrid1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
gridMouseDownTime = DateTime.Now;
label1.Text = "DataGrid1 鼠标按下了。  ";
}    private void Form1_Click(object sender, System.EventArgs e)
    {
      label1.Text="";
    }
    private void label1_Click(object sender, System.EventArgs e)
    {
      label1.Text="";
    }
}
}

用hittest看看～
System.Drawing.Point pt=new Point(e.X,e.Y);
DataGrid.HitTestInfo hit = this.dataGridperson.HitTest(pt);
if(hit.Type == DataGrid.HitTestType.Cell)
{
this.dataGridperson.CurrentCell = new DataGridCell(hit.Row, hit.Column);
this.dataGridperson.Select(hit.Row);
}

比如说，两张表分别对应两条数据
select code,name from table1
select code,relationno,address from table2dataset ds 存储上述两张表(关系=code)并赋给DataGrid,  datagrid.datasource=ds;展开第二条记录在双击子表第一条行头，理论上CurrentRowIndex=0，RowNumber=0.
DataGrid显示：
     a, jack
       a,1,guangdong
       a,2,beijing
     b, john
       b,1,shanghai                   //点击这条,请帮帮看看结果
       b,2,shenzhen
    我的做法是：
ds=(DataSet)datagrid.DataSource;
dv=ds.Tables[1].DefaultView;
dr=dv[CurrentRowIndex].Row;
................

调试易

C# WinForm: DataGrid中如何双击取得当前行数据？

解决方案 »