c#自动生成的控件怎么添加双击事件，是双击事件不是单击 　 i++; 　　　 Button b =

Button按钮是没有双击事件（DoubleClick）的。

button1.DoubleClick+=new EventHandler(button1_DoubleClick)使用这种方法在双击的时候并不会触发双击事件，而是会执行两次单击事件。

建议使用Label，在属性中选事件（像闪电的），双击Click和DoubleClick即可。可以改变image属性使它看起来像一个按钮。

如果一定要用Button按钮的话，可以添加一个Timer，这里起名button1和timer1。分别双击button1和timer1添加button1_Click和timer1_Tick。设置timer1的Interval为100（就是0.1秒）。

单击Button时如果Timer的Enabled为False，就启动Timer，否则关闭Timer，并执行双击 *** 作。代码如下：

private void button1_Click(object sender, EventArgs e)

{

if(timer1.Enabled)

{

timer1.Enabled = false

//以下为双击事件内容

//双击事件结束

}

else

{

Timer1.Enabled = True

}

}

Timer中启动时记录当前时间，如果当前时间距离上次记录时间超过1秒就关闭Timer并执行单击事件。代码如下：

private void timer1_Tick(object sender, EventArgs e)

{

if (timer1.Tag == "")

{

timer1.Tag = DateTime.Now.ToString()

}

else

{

if ((DateTime.Now - Convert.ToDateTime(timer1.Tag)).TotalSeconds >0.5)

{

timer1.Tag = ""

timer1.Enabled = false

//以下为单击事件内容

//单击事件结束

}

}

}

直接在 右击“ListView”属性，在出现属性的那个栏中的上面有个 闪电 的按钮，单击那个，就会出现这个"ListView"的所有事件，在里面找到一个doubleclick 的，在这的右边双击进去就会自动产生双击事件函数，

Form1.Designer.cs里面也会自动添加这个双击事件

PROCESS BEFORE OUTPUT.

MODULE STATUS_0500.

*

PROCESS AFTER INPUT.

MODULE USER_COMMAND_0500.

*&---------------------------------------------------------------------*

*&Report Z_TEST12

*&

*&---------------------------------------------------------------------*

*&

*&

*&---------------------------------------------------------------------*

REPORT Z_TEST12.

*功能码返回值

DATA:OK_CODE TYPE SY-UCOMM,

SAVE_OK LIKE OK_CODE.

*定制对象

DATA:WA_CONTAINER TYPE SCRFNAME VALUE 'TREE1',

WA_CUSTOM_CONTAINER TYPE REF TO

CL_GUI_CUSTOM_CONTAINER,

WA_TREE TYPE REF TO CL_GUI_SIMPLE_TREE.

*NODE节点数

DATA:NODE_TABLE LIKE TABLE OF MTREESNODE,

*节点

NODE1 TYPE MTREESNODE.

*定义内表，变量需要传递，不加HEADER LINE

DATA:WA_SPFLI TYPE TABLE OF SPFLI."WITH HEADER LINE

*当双击时取得节点的KEY值与节点文本值变量

DATA:NODEKEY(200) VALUE 'NONE',NODETEXT(200) VALUE 'NONE'.

*定义对象，定义对象的双击方法，用于将该对象双击方法分*

*配到树双击事件

CLASS LCL_APPLICATION DEFINITION DEFERRED.

*----------------------------------------------------------------------*

* CLASS LCL_APPLICATION DEFINITION

*----------------------------------------------------------------------*

*

*----------------------------------------------------------------------*

CLASS LCL_APPLICATION DEFINITION.

PUBLIC SECTION.

*自定义双击方法，参数为节点关键字

METHODS HANDLE_NODE_DOUBLE_CLICK

FOR EVENT NODE_DOUBLE_CLICK

OF CL_GUI_SIMPLE_TREE

IMPORTING NODE_KEY.

ENDCLASS."LCL_APPLICATION DEFINITION

*&---------------------------------*

*对象方法实现

*&---------------------------------*

CLASS LCL_APPLICATION IMPLEMENTATION.

METHOD HANDLE_NODE_DOUBLE_CLICK.

*MESSAGE I208(00) WITH ’double’.

*取得KEY值，在窗口显示

NODEKEY = NODE_KEY.

*从节点内表中按关键字读取单个节点

READ TABLE NODE_TABLE

WITH KEY NODE_KEY = NODE_KEY

INTO NODE1.

*将节点文本在窗口显示

NODETEXT = NODE1-TEXT.

ENDMETHOD."HANDLE_NODE_DOUBLE_CLICK

ENDCLASS."LCL_APPLICATION IMPLEMENTATION

*定义自定义实例

DATA:G_APPLICATION TYPE REF TO LCL_APPLICATION.

START-OF-SELECTION.

*创建自定义对象

CREATE OBJECT G_APPLICATION.

*直接调用窗口，在窗口PBO分配双击对象

call SCREEN 0500.

*----------------------------------------------------------------------*

* MODULE USER_COMMAND_0500 INPUT

*----------------------------------------------------------------------*

*

*----------------------------------------------------------------------*

MODULE USER_COMMAND_0500 INPUT.

SAVE_OK = OK_CODE.

CLEAR OK_CODE.

CASE SAVE_OK.

WHEN 'EXIT'.

LEAVE PROGRAM.

WHEN 'BACK'.

LEAVE TO SCREEN 0.

ENDCASE.

ENDMODULE."USER_COMMAND_0500 INPUT

*----------------------------------------------------------------------*

* MODULE STATUS_0500 OUTPUT

*----------------------------------------------------------------------*

*

*----------------------------------------------------------------------*

MODULE STATUS_0500 OUTPUT.

SET PF-STATUS '500'.

IF WA_CUSTOM_CONTAINER IS INITIAL.

PERFORM CREATE_TREE.

ENDIF.

ENDMODULE."STATUS_0500 OUTPUT

*&--------------------------------*

*& 创建树及子节点

*&--------------------------------*

FORM CREATE_TREE.

*事件内表及单个事件对象

DATA:EVENTS TYPE CNTL_SIMPLE_EVENTS,

EVENT1 TYPE CNTL_SIMPLE_EVENT.

*建立定制对象

CREATE OBJECT WA_CUSTOM_CONTAINER

EXPORTING

CONTAINER_NAME = WA_CONTAINER.

*建立树对象

CREATE OBJECT WA_TREE

EXPORTING

*LIFETIME =

PARENT = WA_CUSTOM_CONTAINER

*SHELLSTYLE =

NODE_SELECTION_MODE = CL_GUI_SIMPLE_TREE=>NODE_SEL_MODE_SINGLE .

*HIDE_selectION =

*NAME=

*EXCEPTIONS

*LIFETIME_ERROR = 1

*CNTL_SYSTEM_ERROR = 2

*CREATE_ERROR = 3

*FAILED = 4

*ILLEGAL_NODE_selectION_MODE = 5

*OTHERS = 6.

IF SY-SUBRC <>0 .

*MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO

*WITH SY-MSGGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ENDIF.

*开始建立树结构

CLEAR NODE1.

*节点关键字

NODE1-NODE_KEY = '国家'.

*第一层

CLEAR NODE1-RELATKEY.

CLEAR NODE1-RELATSHIP.

NODE1-HIDDEN = ''.

NODE1-DISABLED = ''.

NODE1-ISFOLDER = 'X'.

*不带ICON

CLEAR NODE1-N_IMAGE.

CLEAR NODE1-EXP_IMAGE.

CLEAR NODE1-EXPANDER.

*节点文本

NODE1-TEXT = '中国'.

*添加到节点表

APPEND NODE1 TO NODE_TABLE.

*二层节点

CLEAR NODE1.

NODE1-NODE_KEY = '成都'.

*上层关系

NODE1-RELATKEY = '国家'.

NODE1-RELATSHIP = CL_GUI_SIMPLE_TREE=>RELAT_LAST_CHILD

.

NODE1-HIDDEN = ''.

NODE1-DISABLED = ''.

NODE1-ISFOLDER = 'X'.

CLEAR NODE1-N_IMAGE.

CLEAR NODE1-N_IMAGE.

CLEAR NODE1-EXP_IMAGE.

CLEAR NODE1-EXPANDER.

NODE1-TEXT = '成都'.

APPEND NODE1 TO NODE_TABLE.

CLEAR NODE1.

NODE1-NODE_KEY = '深圳'.

*上层关系

NODE1-RELATKEY = '国家'.

NODE1-RELATSHIP = CL_GUI_SIMPLE_TREE=>RELAT_LAST_CHILD

.

NODE1-HIDDEN = ''.

NODE1-DISABLED = ''.

NODE1-ISFOLDER = 'X'.

CLEAR NODE1-N_IMAGE.

CLEAR NODE1-N_IMAGE.

CLEAR NODE1-EXP_IMAGE.

CLEAR NODE1-EXPANDER.

NODE1-TEXT = '深圳'.

APPEND NODE1 TO NODE_TABLE.

CLEAR NODE1.

NODE1-NODE_KEY = '武侯区'.

*上层关系

NODE1-RELATKEY = '成都'.

NODE1-RELATSHIP = CL_GUI_SIMPLE_TREE=>RELAT_LAST_CHILD

.

NODE1-HIDDEN = ''.

NODE1-DISABLED = ''.

NODE1-ISFOLDER = ''.

CLEAR NODE1-N_IMAGE.

CLEAR NODE1-EXP_IMAGE.

CLEAR NODE1-EXPANDER.

NODE1-TEXT = '武侯区'.

APPEND NODE1 TO NODE_TABLE.

CLEAR NODE1.

NODE1-NODE_KEY = '金牛区'.

*上层关系

NODE1-RELATKEY = '成都'.

NODE1-RELATSHIP = CL_GUI_SIMPLE_TREE=>RELAT_LAST_CHILD

.

NODE1-HIDDEN = ''.

NODE1-DISABLED = ''.

NODE1-ISFOLDER = ''.

CLEAR NODE1-N_IMAGE.

CLEAR NODE1-N_IMAGE.

CLEAR NODE1-EXP_IMAGE.

CLEAR NODE1-EXPANDER.

NODE1-TEXT = '金牛区'.

APPEND NODE1 TO NODE_TABLE.

CLEAR NODE1.

NODE1-NODE_KEY = '福田区'.

*上层关系

NODE1-RELATKEY = '深圳'.

NODE1-RELATSHIP = CL_GUI_SIMPLE_TREE=>RELAT_LAST_CHILD

.

NODE1-HIDDEN = ''.

NODE1-DISABLED = ''.

NODE1-ISFOLDER = ''.

CLEAR NODE1-N_IMAGE.

CLEAR NODE1-N_IMAGE.

CLEAR NODE1-EXP_IMAGE.

CLEAR NODE1-EXPANDER.

NODE1-TEXT = '福田区'.

APPEND NODE1 TO NODE_TABLE.

CLEAR NODE1.

NODE1-NODE_KEY = '南山区'.

*上层关系

NODE1-RELATKEY = '深圳'.

NODE1-RELATSHIP = CL_GUI_SIMPLE_TREE=>RELAT_LAST_CHILD

.

NODE1-HIDDEN = ''.

NODE1-DISABLED = ''.

NODE1-ISFOLDER = ''.

CLEAR NODE1-N_IMAGE.

CLEAR NODE1-N_IMAGE.

CLEAR NODE1-EXP_IMAGE.

CLEAR NODE1-EXPANDER.

NODE1-TEXT = '南山区'.

APPEND NODE1 TO NODE_TABLE.

*按照节点内表添加节点

CALL METHOD WA_TREE->ADD_NODES

EXPORTING

TABLE_STRUCTURE_NAME = 'MTREESNODE'

NODE_TABLE = NODE_TABLE.

*EXCEPTIONS

*ERROR)IN_NODE_TABLE = 1

*FAILED = 2

*DP_ERROR = 3

*TABLE_STRUCTURE_NAME_NOT_FOUND = 4

*OTHERS = 5.

IF SY-SUBRC <>0.

*MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO

*WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ENDIF.

*定义双击事件

EVENT1-EVENTID =

CL_GUI_SIMPLE_TREE=>EVENTID_NODE_DOUBLE_CLICK.

EVENT1-APPL_EVENT = 'X'.

APPEND EVENT1 TO EVENTS.

*添加事件内表

CALL METHOD WA_TREE->SET_REGISTERED_EVENTS

EXPORTING

EVENTS = EVENTS.

* EXCEPTIONS

* CNTL_ERROR = 1

* CNTL_SYSTEM_ERROR = 2

* ILLEAGL_EVENT_COMBINATION = 3

* OTHERS = 4

IF SY-SUBRC <>0.

*MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO

* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ENDIF.

*将已定义的双击事件分配到树对象

SET HANDLER G_APPLICATION->HANDLE_NODE_DOUBLE_CLICK

FOR WA_TREE.

ENDFORM. "create_tree

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