您的位置:首页 > 其它

Winform_ComBox三种赋值方式

2015-09-17 09:14 211 查看

第一种方法:

DataTable dt =
new
DataTable();


dt.Columns.Add(
"name"
);


dt.Columns.Add(
"value"
);


DataRow dr = dt.NewRow();


dr[0] =
"活动"
;


dr[1] =
"1"
;


dt.Rows.Add(dr);
DataRow dr1 = dt.NewRow();


dr1[0] =
"生活"
;


dr1[1] =
"2"
;


dt.Rows.Add(dr1);


this
.comboBox1.DataSource = dt;


this
.comboBox1.DisplayMember =
"name"
;


this
.comboBox1.ValueMember =
"value"
;


//调用方法:


//string
_value = comboBox1.SelectedValue.ToString();


第二种:

//首先添加一个ComboBoxItem类

public
class
ComboBoxItem


{

private
string
_text =
null
;


private
object
_value =
null
;


public
string
Text


{
get
{

return
this
._text;


}
set
{

this
._text = value;


}
}

public
object
Value


{
get
{

return
this
._value;


}
set
{

this
._value = value;


}
}

public
override
string
ToString()


{

return
this
._text;


}
}

// 赋值方法

ComboBoxItem newitem =
new
ComboBoxItem();


newitem.Text =
"男"
;


newitem.Value =
"1"
;


ComboBoxItem newitem1 =
new
ComboBoxItem();


newitem1.Text =
"女"
;


newitem1.Value =
"0"
;


com_sex.Items.Add(newitem);


com_sex.Items.Add(newitem1);


// 调用方法:
ComboBoxItem sex_item = (ComboBoxItem)com_sex.SelectedItem;

int
com_sex_value = Convert.ToInt32(sex_item.Value);


string
_Name = sex_item.Text;


第三种:

//首先添加一个SetCls类

public
class
SetCls


{

private
string
ID;


private
string
NAME;


public
SetCls(
string
pid,
string
pName)


{

this
.ID =pid;

this
.NAME =pName;


}

public
string
pID


{

get
{
return
ID;}


}

public
string
pName


{

get
{
return
NAME;}


}
}

// 赋值方法:(使用ArrayList 要先引用命名空间using System.Collections;)

ArrayList lists =
new
ArrayList();


lists .Add(
new
SetCls (
"1"
,
"活动"
));


lists .Add(
new
SetCls (
"2"
,
"生活"
));


this
.COMBOX.DisplayMember =
"pID"
;


this
.COMBOX.ValueMember =
"pName"
;


this
.COMBOX.DataSource = lists;


// 调用方法:
string
com_sex_value = COMBOX.SelectedValue.ToString();


我用DataSet填充的数据库中的内容(我这个是直接赋值,并不像上面三个添加值给ComBox)

DataSet ds_zubie =
new
DataSet();


da =
new
SqlDataAdapter(sql_zubie, PublicDB.DBzbw);


da.Fill(ds_zubie,
"zubie"
);


com_paidan.DataSource = ds_zubie.Tables[
"zubie"
].DefaultView;//绑定数据源


com_paidan.ValueMember =
"zubie_id"
;//赋值Value


com_paidan.DisplayMember =
"zubie_name"
;//赋值显示名称


//调用方法:
string
com_zubie_id = com_paidan.SelectedValue.ToString();
内容来自用户分享和网络整理,不保证内容的准确性,如有侵权内容,可联系管理员处理 点击这里给我发消息
标签: