我在使用 TreeView 过滤器时遇到问题，因为所选国家/地区需要将 Discipline 列入他们可能未分配给国家和所有学科的事件列表。我正在考虑下载父节点，但我没有找到这样的选项。XAML 代码的一部分：
<TreeView X:Name="drzewo" Height="380" width="280" MouseDoubleClick="drzewo_MouseDoubleClick"/>
方法 drzewo_MouseDoubleClick C#：
private void drzewo_MouseDoubleClick ( object sender , MouseButtonEventArgs e)
{
TreeView v = e.Source as TreeView ;
string str = v.SelectedValue.ToString ();
drzewo_klik = str.Substring (46, str.IndexOf ( " Items.Count " ) -47 ) ;
for (int i = 0; i < listadyscyplina.Count , i + + )
{
if ( listadyscyplina.Contains ( drzewo_klik ) )
{
flagadyscyplina = true;
drzewo_dyscyplina = drzewo_klik ;
break;
}
}
for (int i = 0; i < listakontynent.Count , i + + )
{
if ( listakontynent.Contains ( drzewo_klik ) )
{
flagakontynent = true;
drzewo_kontynent = drzewo_klik ;
break;
}
}
for (int i = 0; i < listakraj.Count , i + + )
{
if ( listakraj.Contains ( drzewo_klik ) )
{
flagakraj = true;
drzewo_kraj = drzewo_klik ;
break;
}
}
for (int i = 0; i < listalig.Count , i + + )
{
if ( listalig.Contains ( drzewo_klik ) )
{
flagaliga = true;
drzewo_liga = drzewo_klik ;
break;
}
}
sort ();
}
listadyscyplina、listakontynent、listakraj 和 listalig 是从数据库中提取的所有学科、大洲、国家和联赛的列表。
C#排序方法：
private void sort ( )
{
ZdarzeniaDataGrid.ItemsSource = null;
dataSource3.Clear ();
if ( flagaliga == true && flagasystem == true && flagakraj == true && flagadyscyplina == true && flagakontynent == true)
sort1 ();
else if ( flagasystem == true && flagakraj == true && flagadyscyplina == true && flagakontynent == true)
sort2 ();
else if ( flagakraj == true && flagadyscyplina == true && flagakontynent == true)
sort3 ();
else if ( flagadyscyplina == true && flagakontynent == true)
sort4 ();
else if ( flagadyscyplina == true)
sort5 ();
ZdarzeniaDataGrid.Items.Refresh ();
ZdarzeniaDataGrid.ItemsSource = dataSource3 ;
}
sort1 到 sort5 的方法 C#
private void sort2 ( )
{
licznikz int = 0;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select IdKlubu , IdKlubu2 from event where IdLigi = (select IdLigi from League where ( Name = ' " + drzewo_liga + " ' AND IdDyscypliny = (select IdDyscypliny from discipline where name = ' " + drzewo_dyscyplina + "' ) AND IdKraju = (SELECT IdKraju FROM Country WHERE Name = ' "+ drzewo_kraj + " ') AND SystemRozgrywek = ' "+ drzewo_system +"' AND ( Season = '2013 'OR Season = '2013 / 2014 ' ) )) " conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
dss5 = new DataSet ();
adapter.Fill ( dss5 , "Event" ) ;
}
licznikz = dss5.Tables [ "Event" ] . Rows.Count ;
DataRow napis6 = null;
DataRow napis1 = null;
DataRow napis2 = null;
DataSet DSSS = null;
for ( int n = 0, n < licznikz n + + )
{
napis6 = dss5.Tables [ "Event" ] . Rows [n ] ;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select name from Club where IdKlubu = ' " + napis6.ItemArray.GetValue (0) . ToString ( ) + "' ", conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
DSSS = new DataSet ();
adapter.Fill ( DSSS , " Club ");
}
napis1 = dsss.Tables [" Club "] . Rows [0] ;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select name from Club where IdKlubu = ' " + napis6.ItemArray.GetValue ( 1). ToString ( ) + "' ", conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
DSSS = new DataSet ();
adapter.Fill ( DSSS , " Club ");
}
napis2 = dsss.Tables [" Club "] . Rows [0] ;
for (int i = 0; i < dataSource.Count , i + + )
{
if ( dataSource [i] . NazwaLigi.Contains ( napis.ItemArray.GetValue (0) . ToString ( ) ) && dataSource [i] . Gospodarze.Contains ( napis1.ItemArray.GetValue (0) . ToString ( ) ) && dataSource [ i] . Goście.Contains ( napis2.ItemArray.GetValue (0) . ToString ( )))
{
dataSource3.Add ( dataSource [i] ) ;
}
}
}
}
private void sort1 ( )
{
licznikz int = 0;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select IdKlubu , IdKlubu2 from event where IdLigi = (select IdLigi from League where ( Name = ' " + drzewo_liga + " ' AND IdDyscypliny = (select IdDyscypliny from discipline where name = ' " + drzewo_dyscyplina + "' ) AND IdKraju = (SELECT IdKraju FROM Country WHERE Name = ' "+ drzewo_kraj + " ') AND (Season = '2013 'OR Season = '2013 / 2014 ' ))) " , conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
dss5 = new DataSet ();
adapter.Fill ( dss5 , "Event" ) ;
}
licznikz = dss5.Tables [ "Event" ] . Rows.Count ;
DataRow napis6 = null;
DataRow napis1 = null;
DataRow napis2 = null;
DataSet DSSS = null;
for ( int n = 0, n < licznikz n + + )
{
napis6 = dss5.Tables [ "Event" ] . Rows [n ] ;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select name from Club where IdKlubu = ' " + napis6.ItemArray.GetValue (0) . ToString ( ) + "' ", conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
DSSS = new DataSet ();
adapter.Fill ( DSSS , " Club ");
}
napis1 = dsss.Tables [" Club "] . Rows [0] ;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select name from Club where IdKlubu = ' " + napis6.ItemArray.GetValue ( 1). ToString ( ) + "' ", conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
DSSS = new DataSet ();
adapter.Fill ( DSSS , " Club ");
}
napis2 = dsss.Tables [" Club "] . Rows [0] ;
for (int i = 0; i < dataSource.Count , i + + )
{
if ( dataSource [i] . NazwaLigi.Contains ( napis.ItemArray.GetValue (0) . ToString ( ) ) && dataSource [i] . Gospodarze.Contains ( napis1.ItemArray.GetValue (0) . ToString ( ) ) && dataSource [ i] . Goście.Contains ( napis2.ItemArray.GetValue (0) . ToString ( )))
{
dataSource3.Add ( dataSource [i] ) ;
}
}
}
}
private void sort3 ( )
{
int count = 0 ;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select name from League where ( IdDyscypliny = (select IdDyscypliny from discipline where name = ' " + drzewo_dyscyplina + " ') AND IdKraju = (SELECT IdKraju FROM Country WHERE Name = ' " + drzewo_kraj + "' ) ) ", conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
ds = new DataSet ();
adapter.Fill (ds , "The League ");
}
count = ds.Tables [ "The League "] . Rows.Count ;
DataRow caption = null;
for (int k = 0 , k < count; k + + )
{
caption = ds.Tables [ "The League "] . Rows [ k] ;
licznikz int = 0;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select IdKlubu , IdKlubu2 from event where IdLigi = (select IdLigi from League where ( Name = ' " + napis.ItemArray.GetValue (0) . ToString ( ) + " ' AND IdDyscypliny = (select IdDyscypliny from discipline WHERE name = ' "+ drzewo_dyscyplina + " ') AND IdKraju = (SELECT IdKraju FROM Country WHERE Name = ' "+ drzewo_kraj + " ') AND (Season = '2013 'OR Season = '2013 / 2014 ' ))) " , conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
dss5 = new DataSet ();
adapter.Fill ( dss5 , "Event" ) ;
}
licznikz = dss5.Tables [ "Event" ] . Rows.Count ;
DataRow napis6 = null;
DataRow napis1 = null;
DataRow napis2 = null;
DataSet DSSS = null;
for ( int n = 0, n < licznikz n + + )
{
napis6 = dss5.Tables [ "Event" ] . Rows [n ] ;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select name from Club where IdKlubu = ' " + napis6.ItemArray.GetValue (0) . ToString ( ) + "' ", conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
DSSS = new DataSet ();
adapter.Fill ( DSSS , " Club ");
}
napis1 = dsss.Tables [" Club "] . Rows [0] ;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select name from Club where IdKlubu = ' " + napis6.ItemArray.GetValue ( 1). ToString ( ) + "' ", conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
DSSS = new DataSet ();
adapter.Fill ( DSSS , " Club ");
}
napis2 = dsss.Tables [" Club "] . Rows [0] ;
for (int i = 0; i < dataSource.Count , i + + )
{
if ( dataSource [i] . NazwaLigi.Contains ( napis.ItemArray.GetValue (0) . ToString ( ) ) && dataSource [i] . Gospodarze.Contains ( napis1.ItemArray.GetValue (0) . ToString ( ) ) && dataSource [ i] . Goście.Contains ( napis2.ItemArray.GetValue (0) . ToString ( )))
{
dataSource3.Add ( dataSource [i] ) ;
}
}
}
}
}
private void sort4 ( )
{
DataSet dsx = null;
licznikx int = 0;
using ( SqlConnection CONNX = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
Poleceniex SqlCommand = new SqlCommand ( "select name from country where IdKontynentu = (select IdKontynentu from Continent where name = ' " + drzewo_kontynent + "' ) ", CONNX ) ;
Adapterx SqlDataAdapter = new SqlDataAdapter ( poleceniex ) ;
dsx = new DataSet ();
adapterx.Fill ( dsx , "Country ");
}
licznikx = dsx.Tables [ "Country "] . Rows.Count ;
DataRow napisx = null;
for (int j = 0; j < licznikx j + + )
{
napisx = dsx.Tables [ "Country "] . Rows [i ] ;
int count = 0 ;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select name from League where ( IdDyscypliny = (select IdDyscypliny from discipline where name = ' " + drzewo_dyscyplina + " ') AND IdKraju = (SELECT IdKraju FROM Country WHERE Name = ' " + napisx.ItemArray.GetValue (0) . ToString ( ) + " ')) ", conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
ds = new DataSet ();
adapter.Fill (ds , "The League ");
}
count = ds.Tables [ "The League "] . Rows.Count ;
DataRow caption = null;
for (int k = 0 , k < count; k + + )
{
caption = ds.Tables [ "The League "] . Rows [ k] ;
licznikz int = 0;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select IdKlubu , IdKlubu2 from event where IdLigi = (select IdLigi from League where ( Name = ' " + napis.ItemArray.GetValue (0) . ToString ( ) + " ' AND IdDyscypliny = (select IdDyscypliny from discipline WHERE name = ' "+ drzewo_dyscyplina + " ') AND IdKraju = (SELECT IdKraju FROM Country WHERE Name = ' "+ napisx.ItemArray.GetValue (0) . ToString ( ) +" ') AND (Season = '2013 'OR season = '2013 / 2014 ' ))) " , conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
dss5 = new DataSet ();
adapter.Fill ( dss5 , "Event" ) ;
}
licznikz = dss5.Tables [ "Event" ] . Rows.Count ;
DataRow napis6 = null;
DataRow napis1 = null;
DataRow napis2 = null;
DataSet DSSS = null;
for ( int n = 0, n < licznikz n + + )
{
napis6 = dss5.Tables [ "Event" ] . Rows [n ] ;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select name from Club where IdKlubu = ' " + napis6.ItemArray.GetValue (0) . ToString ( ) + "' ", conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
DSSS = new DataSet ();
adapter.Fill ( DSSS , " Club ");
}
napis1 = dsss.Tables [" Club "] . Rows [0] ;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select name from Club where IdKlubu = ' " + napis6.ItemArray.GetValue ( 1). ToString ( ) + "' ", conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
DSSS = new DataSet ();
adapter.Fill ( DSSS , " Club ");
}
napis2 = dsss.Tables [" Club "] . Rows [0] ;
for (int i = 0; i < dataSource.Count , i + + )
{
if ( dataSource [i] . NazwaLigi.Contains ( napis.ItemArray.GetValue (0) . ToString ( ) ) && dataSource [i] . Gospodarze.Contains ( napis1.ItemArray.GetValue (0) . ToString ( ) ) && dataSource [ i] . Goście.Contains ( napis2.ItemArray.GetValue (0) . ToString ( )))
{
dataSource3.Add ( dataSource [i] ) ;
}
}
}
}
}
}
private void sort5 ( )
{
DataSet dsy = null;
liczniky int = 0;
using ( SqlConnection conny = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
Poleceniey SqlCommand = new SqlCommand ( "select name from Continent ", conny ) ;
SqlDataAdapter adapter = new SqlDataAdapter ( poleceniey ) ;
dsy = new DataSet ();
adaptery.Fill ( dsy , " Continent ");
}
liczniky = dsy.Tables [" Continent "] . Rows.Count ;
DataRow subtitle = null;
for ( int l = 0, l < liczniky , l + + )
{
Subtitles = dsy.Tables [" Continent "] . Rows [l] ;
DataSet dsx = null;
licznikx int = 0;
using ( SqlConnection CONNX = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
Poleceniex SqlCommand = new SqlCommand ( "select name from country where IdKontynentu = (select IdKontynentu from Continent where name = ' " + napisy.ItemArray.GetValue (0) . ToString ( ) + " ')" , CONNX ) ;
Adapterx SqlDataAdapter = new SqlDataAdapter ( poleceniex ) ;
dsx = new DataSet ();
adapterx.Fill ( dsx , "Country ");
}
licznikx = dsx.Tables [ "Country "] . Rows.Count ;
DataRow napisx = null;
for (int j = 0; j < licznikx j + + )
{
napisx = dsx.Tables [ "Country "] . Rows [i ] ;
int count = 0 ;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select name from League where ( IdDyscypliny = (select IdDyscypliny from discipline where name = ' " + drzewo_dyscyplina + " ') AND IdKraju = (SELECT IdKraju FROM Country WHERE Name = ' " + napisx.ItemArray.GetValue (0) . ToString ( ) + " ')) ", conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
ds = new DataSet ();
adapter.Fill (ds , "The League ");
}
count = ds.Tables [ "The League "] . Rows.Count ;
DataRow caption = null;
for (int k = 0 , k < count; k + + )
{
caption = ds.Tables [ "The League "] . Rows [ k] ;
licznikz int = 0;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select IdKlubu , IdKlubu2 from event where IdLigi = (select IdLigi from League where ( Name = ' " + napis.ItemArray.GetValue (0) . ToString ( ) + " ' AND IdDyscypliny = (select IdDyscypliny from discipline WHERE name = ' "+ drzewo_dyscyplina + " ') AND IdKraju = (SELECT IdKraju FROM Country WHERE Name = ' "+ napisx.ItemArray.GetValue (0) . ToString ( ) +" ') AND (Season = '2013 'OR season = '2013 / 2014 ' ))) " , conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
dss5 = new DataSet ();
adapter.Fill ( dss5 , "Event" ) ;
}
licznikz = dss5.Tables [ "Event" ] . Rows.Count ;
DataRow napis6 = null;
DataRow napis1 = null;
DataRow napis2 = null;
DataSet DSSS = null;
for ( int n = 0, n < licznikz n + + )
{
napis6 = dss5.Tables [ "Event" ] . Rows [n ] ;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select name from Club where IdKlubu = ' " + napis6.ItemArray.GetValue (0) . ToString ( ) + "' ", conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
DSSS = new DataSet ();
adapter.Fill ( DSSS , " Club ");
}
napis1 = dsss.Tables [" Club "] . Rows [0] ;
using ( SqlConnection conn = new SqlConnection ( "Data Source = ADAM_LAPTOP ; Integrated Security = true; Database = astruzik " ) )
{
SqlCommand command = new SqlCommand ( "select name from Club where IdKlubu = ' " + napis6.ItemArray.GetValue ( 1). ToString ( ) + "' ", conn) ;
SqlDataAdapter adapter = new SqlDataAdapter ( command ) ;
DSSS = new DataSet ();
adapter.Fill ( DSSS , " Club ");
}
napis2 = dsss.Tables [" Club "] . Rows [0] ;
for (int i = 0; i < dataSource.Count , i + + )
{
if ( dataSource [i] . NazwaLigi.Contains ( napis.ItemArray.GetValue (0) . ToString ( ) ) && dataSource [i] . Gospodarze.Contains ( napis1.ItemArray.GetValue (0) . ToString ( ) ) && dataSource [ i] . Goście.Contains ( napis2.ItemArray.GetValue (0) . ToString ( )))
{
dataSource3.Add ( dataSource [i] ) ;
}
}
}
}
}
}
}
dataSource3 是显示在 ZdarzeniaDataGrid 的列表 DataSource 是子列表