winform datagrid某行的双击事件!

greenhill 2003-08-22 10:59:41
我想在winform datagrid中点击某行其中的一列然后就选中某行:代码如下
private void dataGrid1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
{
Point pt = new Point(e.X,e.Y);
DataGrid.HitTestInfo hit = dataGrid1.HitTest(pt);
if(hit.Type == DataGrid.HitTestType.Cell)
{
dataGrid1.Select(hit.Row);
}
num=dataGrid1.CurrentCell.RowNumber;
}
而且我想对该行在双击的时候响应双击事件,不知道该怎样实现?
我对“孟子E章”的datagrid双击事件程序进行实验,它是对某单元格进行响应双击事件并取其值,是根据mousedown的事件响应!但是我加了mouseup的选择某行的事件后它就不响应了!请问该怎么办才能实现点击后选中某行并可以响应该行的双击事件
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zhehui 2003-08-24
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雪狼1234567 2003-08-24
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这是一个完整的例子:
namespace DataGridDoubleClick
{
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.DataGrid dataGrid1;
private DataSet myDataSet;
DateTime gridMouseDownTime;
private System.Windows.Forms.Button button1;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;

public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();

gridMouseDownTime = DateTime.Now;
// Call SetUp to bind the controls.

}



private void MakeDataSet()
{
// Create a DataSet.
myDataSet = new DataSet("myDataSet");

// Create two DataTables.
DataTable tCust = new DataTable("Customers");

// Create two columns, and add them to the first table.
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);

// Add the tables to the DataSet.
myDataSet.Tables.Add(tCust);


/* Populates the tables. For each customer and order,
creates two DataRow variables. */
DataRow newRow1;

// Create three customers in the Customers Table.
for(int i = 1; i < 4; i++)
{
newRow1 = tCust.NewRow();
newRow1["custID"] = (100*i).ToString();
tCust.Rows.Add(newRow1);
}
// Give each customer a distinct name.
tCust.Rows[0]["custName"] = "John Summers";
tCust.Rows[1]["custName"] = "Phil Seagram";
tCust.Rows[2]["custName"] = "Sam Robinson";

// And address
tCust.Rows[0]["custCity"] = "Chicago";
tCust.Rows[1]["custCity"] = "Los Angeles";
tCust.Rows[2]["custCity"] = "Washington";
}

private void AddCustomDataTableStyle()
{
DataGridTableStyle ts1 = new DataGridTableStyle();
ts1.MappingName = "Customers";
// Set other properties.
ts1.AlternatingBackColor = Color.LightGray;
//
// Add textbox column style so we can catch textbox mouse clicks
DataGridTextBoxColumn TextCol = new DataGridTextBoxColumn();
TextCol.MappingName = "custID";
TextCol.HeaderText = "CustomerID";
TextCol.Width = 100;
//add handler
TextCol.TextBox.MouseDown += new MouseEventHandler(TextBoxMouseDownHandler);
TextCol.TextBox.DoubleClick += new EventHandler(TextBoxDoubleClickHandler);
ts1.GridColumnStyles.Add(TextCol);

TextCol = new DataGridTextBoxColumn();
TextCol.MappingName = "custName";
TextCol.HeaderText = "Customer Name";
TextCol.Width = 100;
//add handler
TextCol.TextBox.MouseDown += new MouseEventHandler(TextBoxMouseDownHandler);
TextCol.TextBox.DoubleClick += new EventHandler(TextBoxDoubleClickHandler);
ts1.GridColumnStyles.Add(TextCol);

TextCol = new DataGridTextBoxColumn();
TextCol.MappingName = "custCity";
TextCol.HeaderText = "Customer Address";
TextCol.Width = 100;
//add handler
TextCol.TextBox.MouseDown += new MouseEventHandler(TextBoxMouseDownHandler);
TextCol.TextBox.DoubleClick += new EventHandler(TextBoxDoubleClickHandler);
ts1.GridColumnStyles.Add(TextCol);

dataGrid1.TableStyles.Add(ts1);

}

/// <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();
this.button1 = new System.Windows.Forms.Button();
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
this.SuspendLayout();
//
// dataGrid1
//
this.dataGrid1.DataMember = "";
this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid1.Location = new System.Drawing.Point(41, 28);
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.ReadOnly = true;
this.dataGrid1.Size = new System.Drawing.Size(471, 166);
this.dataGrid1.TabIndex = 0;
this.dataGrid1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.dataGrid1_MouseDown);
//
// button1
//
this.button1.Location = new System.Drawing.Point(300, 5);
this.button1.Name = "button1";
this.button1.TabIndex = 1;
this.button1.Text = "button1";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(542, 218);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.button1,
this.dataGrid1});
this.Name = "Form1";
this.Text = "Form1";
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
this.ResumeLayout(false);

}
#endregion

/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}

private void TextBoxDoubleClickHandler(object sender, EventArgs e)
{
MessageBox.Show("TrueDoubleClick");
}

private void TextBoxMouseDownHandler(object sender, MouseEventArgs e)
{
if(DateTime.Now < gridMouseDownTime.AddMilliseconds(SystemInformation.DoubleClickTime))
{
MessageBox.Show("GridDoubleClick");
}
Console.WriteLine("TextBoxMouseDownHandler " );
}

private void dataGrid1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
gridMouseDownTime = DateTime.Now;
Console.WriteLine("dataGrid1_MouseDown " );
}

private void button1_Click(object sender, System.EventArgs e)
{


// Create a DataSet with two tables and one relation.
MakeDataSet();
/* Bind the DataGrid to the DataSet. The dataMember
specifies that the Customers table should be displayed.*/
dataGrid1.SetDataBinding(myDataSet, "Customers");

//create and add a custom table style so we can
//easily get at the behavior of a cell...
AddCustomDataTableStyle();

}
}
}
老大刘 2003-08-24
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刚好也遇到了这个问题,我是按http://www.syncfusion.com/FAQ/WinForms/FAQ_c44c.asp里提到的一个方法解决的。目的是在信息显示用的DataGrid中,用户单击某个cell则选定整行,并响应用户鼠标双击某一行事件以弹出详细信息窗体。
首先继承DataGridTextBoxColumn类:
public class DataGridNoActiveCellColumn : DataGridTextBoxColumn
{
public DataGridNoActiveCellColumn()
{
//
// TODO: 在此处添加构造函数逻辑
//
}

private int SelectedRow = -1;

protected override void Edit(System.Windows.Forms.CurrencyManager source,
int rowNum, System.Drawing.Rectangle bounds, bool readOnly,string nstantText,bool cellIsVisible)
{
//make sure previous selection is valid
if(SelectedRow > -1 && SelectedRow < source.List.Count + 1)

this.DataGridTableStyle.DataGrid.UnSelect(SelectedRow);

SelectedRow = rowNum;

this.DataGridTableStyle.DataGrid.Select(SelectedRow);
}
}

将此类代替DataGridTextBoxColumn类,加入到DataGridTableStyle中,就可以了。
greenhill 2003-08-22
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help
greenhill 2003-08-22
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能给点示例代码吗?
rouser 2003-08-22
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在CurrentCellChanged事件裡觸發DoubleClick事件

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