為DataGridView增加日期 時間列

2021-04-21 14:50:40 字數 2672 閱讀 5077

為datagridview增加日期/時間列,設計datagridview時,在edit columns視窗中可以選擇columntype為新增加的列型別calendarcolumn,設定showupdown(但是不能儲存到設計檔案. designer.cs,可以在設計檔案中修改showupdown的值),在cellstyle builder視窗中設定format,指定日期/時間的顯示格式,格式只能用custom format。

using system;

using system.collections.generic;

using system.componentmodel;

using system.data;

using system.drawing;

using system.text;

using system.windows.forms;

namespace common

set}

public calendarcolumn()

: base(new calendarcell())

public override datagridviewcell celltemplate

setbase.celltemplate = value;}}

private void initializecomponent()

}public class calendarcell : datagridviewtextboxcell

public override void initializeeditingcontrol(int rowindex, object

initialformattedvalue, datagridviewcellstyle datagridviewcellstyle)

public override type edittype

}public override type valuetype

}public override object defaultnewrowvalue}}

class calendareditingcontrol : datetimepicker, idatagridvieweditingcontrol

// implements the idatagridvieweditingcontrol.editingcontrolformattedvalue

// property.

public object editingcontrolformattedvalue

set}

}// implements the

// idatagridvieweditingcontrol.geteditingcontrolformattedvalue method.

public object geteditingcontrolformattedvalue(

datagridviewdataerrorcontexts context)

// implements the idatagridvieweditingcontrol.editingcontrolrowindex

// property.

public int editingcontrolrowindex

set}

// implements the idatagridvieweditingcontrol.editingcontrolwantsinputkey

// method.

public bool editingcontrolwantsinputkey(

keys key, bool datagridviewwantsinputkey)

}// implements the idatagridvieweditingcontrol.prepareeditingcontrolforedit

// method.

public void prepareeditingcontrolforedit(bool selectall)

// implements the idatagridvieweditingcontrol

// .repositioneditingcontrolonvaluechange property.

public bool repositioneditingcontrolonvaluechange

}// implements the idatagridvieweditingcontrol

// .editingcontroldatagridview property.

public datagridview editingcontroldatagridview

set}

// implements the idatagridvieweditingcontrol

// .editingcontrolvaluechanged property.

public bool editingcontrolvaluechanged

set}

// implements the idatagridvieweditingcontrol

// .editingpanelcursor property.

public cursor editingpanelcursor

}protected override void onvaluechanged(eventargs eventargs)}}

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