面代碼演示了如何將ListView中的數(shù)據(jù)導出到Excel的方法，例子代碼中還包括了一些編程中的其它小方法，比如：
public
void
DealExcelOut()
{
Stringpath
=
Application.StartupPath;
Stringpath1
=
path
+
"
/tmp.xls
"
;
Stringpath2
=
path
+
"
/tmp2.xls
"
;
File.Copy(path1,path2,
true
);
File.SetAttributes(path2,FileAttributes.Normal);
Stringstrconn
=
"
Provider=Microsoft.jet.OLEDB.4.0;DataSource=
"
+
path2
+
"
;ExtendedProperties=Excel8.0
"
;
OleDbConnectioncn
=
new
OleDbConnection(strconn);
OleDbCommandcmd
=
new
OleDbCommand();
Stringcmdstr;
//
根據(jù)ListView創(chuàng)建VPN表
try
{
cn.Open();
cmd.Connection
=
cn;
cmdstr
=
"
CreateTableVPN(
"
;
foreach
(ColumnHeaderch
in
listView_Main.Columns)
{
cmdstr
+=
ch.Text
+
"
TEXT,
"
;
}
cmdstr
=
cmdstr.Remove(cmdstr.Length
-
1
);
cmdstr
+=
"
)
"
;
cmd.CommandText
=
cmdstr;
cmd.ExecuteNonQuery();
}
catch
(Exception)
{
MessageBox.Show(
"
讀取Excel模板文件錯誤!
"
);
}
//
導出數(shù)據(jù)
try
{
long
cols
=
listView_Main.Columns.Count;
foreach
(ListViewItemlvi
in
listView_Main.Items)
{
cmdstr
=
"
InsertIntoVPNValues(
"
;
for
(
long
i
=
0
;i
<
cols;i
++
)
cmdstr
+=
"
'
"
+
lvi.SubItems[(Int32)i].Text
+
"
',
"
;
cmdstr
=
cmdstr.Remove(cmdstr.Length
-
1
);
cmdstr
+=
"
)
"
;
cmd.CommandText
=
cmdstr;
cmd.ExecuteNonQuery();
}
cn.Close();
//
顯示FileSave對話框,復制臨時文件到指定文件
DialogResultr
=
saveFileDialog_Excel.ShowDialog();
if
(r
==
DialogResult.OK)
{
File.Copy(path2,saveFileDialog_Excel.FileName,
true
);
}
File.Delete(path2);
}
catch
(Exception)
{
MessageBox.Show(
"
訪問Excel文件錯誤!
"
);
}
}
1）文件的拷貝復制方法
2）文件屬性的修改
3）ListView控件Columns的遍歷
4）ListView控件Items的遍歷
5）foreach語句的使用
6）SaveFileDialog的使用
public
void
DealExcelOut()
{
Stringpath
=
Application.StartupPath;
Stringpath1
=
path
+
"
/tmp.xls
"
;
Stringpath2
=
path
+
"
/tmp2.xls
"
;
File.Copy(path1,path2,
true
);
File.SetAttributes(path2,FileAttributes.Normal);
Stringstrconn
=
"
Provider=Microsoft.jet.OLEDB.4.0;DataSource=
"
+
path2
+
"
;ExtendedProperties=Excel8.0
"
;
OleDbConnectioncn
=
new
OleDbConnection(strconn);
OleDbCommandcmd
=
new
OleDbCommand();
Stringcmdstr;
//
根據(jù)ListView創(chuàng)建VPN表
try
{
cn.Open();
cmd.Connection
=
cn;
cmdstr
=
"
CreateTableVPN(
"
;
foreach
(ColumnHeaderch
in
listView_Main.Columns)
{
cmdstr
+=
ch.Text
+
"
TEXT,
"
;
}
cmdstr
=
cmdstr.Remove(cmdstr.Length
-
1
);
cmdstr
+=
"
)
"
;
cmd.CommandText
=
cmdstr;
cmd.ExecuteNonQuery();
}
catch
(Exception)
{
MessageBox.Show(
"
讀取Excel模板文件錯誤!
"
);
}
//
導出數(shù)據(jù)
try
{
long
cols
=
listView_Main.Columns.Count;
foreach
(ListViewItemlvi
in
listView_Main.Items)
{
cmdstr
=
"
InsertIntoVPNValues(
"
;
for
(
long
i
=
0
;i
<
cols;i
++
)
cmdstr
+=
"
'
"
+
lvi.SubItems[(Int32)i].Text
+
"
',
"
;
cmdstr
=
cmdstr.Remove(cmdstr.Length
-
1
);
cmdstr
+=
"
)
"
;
cmd.CommandText
=
cmdstr;
cmd.ExecuteNonQuery();
}
cn.Close();
//
顯示FileSave對話框,復制臨時文件到指定文件
DialogResultr
=
saveFileDialog_Excel.ShowDialog();
if
(r
==
DialogResult.OK)
{
File.Copy(path2,saveFileDialog_Excel.FileName,
true
);
}
File.Delete(path2);
}
catch
(Exception)
{
MessageBox.Show(
"
訪問Excel文件錯誤!
"
);
}
}
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