Capture the double-click event of the DataGrid (from a Bao column)

<! -- Startfragment --> 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 ()
{
// Create a dataset with 2 tables and 1 and Relation
Makedataset ();
// Data Binding
Datagrid1.setdatabinding (mydataset, "MERs ");

// Add a style
Addcustomdatatablestyle ();
}

Private void makedataset ()
{
// Create a dataset.
Mydataset = new dataset ("mydataset ");

// Create two Ables.
Datatable tcust = new datatable ("MERs ");

// 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 tables to dataset.
Mydataset. Tables. Add (tcust );

/* Calculate the tables. Create the datarow variable for each customer */
Datarow newrow1;

// Add records to the MERs table.
For (INT I = 1; I <4; I ++)
{
Newrow1 = tcust. newrow ();
Newrow1 ["custid"] = (100 * I). tostring ();
Tcust. Rows. Add (newrow1 );
}

Tcust. Rows [0] ["custname"] = "[wonderful world of Meng xianhui ]";
Tcust. Rows [1] ["custname"] = "net_lover ";
Tcust. Rows [2] ["custname"] = "http://xml.sz.luohuedu.net /";

Tcust. Rows [0] ["custcity"] = "Beijing ";
Tcust. Rows [1] ["custcity"] = "Shanghai ";
Tcust. Rows [2] ["custcity"] = "Henan ";
}

Private void addcustomdatatablestyle ()
{
Datagridtablestyle ts1 = new datagridtablestyle ();
Ts1.mappingname = "customers ";
// Set attributes
Ts1.alternatingbackcolor = color. lightgray;

// Add a textbox Column Style to capture mouse events
Maid ();
Textcol. mappingname = "custid ";
Textcol. headertext = "no ";
Textcol. width = 100;

// Add an event Processor
Textcol. textbox. mousedown + = new mouseeventhandler (textboxmousedownhandler );
Textcol. textbox. DoubleClick + = new eventhandler (textboxdoubleclickhandler );
Ts1.gridcolumnstyles. Add (textcol );

Textcol = new maid ();
Textcol. mappingname = "custname ";
Textcol. headertext = "name ";
Textcol. width = 100;
// Add an event Processor
Textcol. textbox. mousedown + = new mouseeventhandler (textboxmousedownhandler );
Textcol. textbox. DoubleClick + = new eventhandler (textboxdoubleclickhandler );
Ts1.gridcolumnstyles. Add (textcol );

Textcol = new maid ();
Textcol. mappingname = "custcity ";
Textcol. headertext = "Address ";
Textcol. width = 100;
// Add an event Processor
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. Maid = 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. Maid = false;
This. datagrid1.datamember = "";
This. datagrid1.headerforecolor = system. Drawing. systemcolors. controltext;
This. Maid = new system. Drawing. Point (11, 9 );
This. Maid = "maid ";
This. datagrid1.size = new system. Drawing. Size (368,144 );
This. Maid = 0;
This. Maid + = new system. Windows. Forms. mouseeventhandler (this. Maid 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 = "double-click event example ";
(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 ("double-click event occurs. Double-click the value: "+ (textbox) sender). Text. tostring ());
}

Private void textboxmousedownhandler (Object sender, mouseeventargs E)
{
If (datetime. Now <gridmousedowntime. addmilliseconds (systeminformation. doubleclicktime ))
{
MessageBox. Show ("double-click event occurs. Double-click the value: "+ (textbox) sender). Text. tostring ());
}
Label1.text = "textbox: click it. ";
}

Private void datagrid=mousedown (Object sender, system. Windows. Forms. mouseeventargs E)
{
Gridmousedowntime = datetime. now;
Label1.text = "datagrid1 press the mouse. ";
}

Private void form1_click (Object sender, system. eventargs E)
{
Label1.text = "";
}
Private void labelease click (Object sender, system. eventargs E)
{
Label1.text = "";
}
}
}