方法1:
sqlconnection myconnection
=new
sqlconnection(
"server=localhost;uid=sa;pwd=;database=wjoa");
string
sql1="
select * from resoursemanage_t";
sqldataadapter adaptera
=new
sqldataadapter(sql1,myconnection);
dataset ds
=new
dataset();
adaptera.fill(ds,"a
");string
sql2="
select * from userlogin_t";
if(myconnection.state
!=connectionstate.closed)
myconnection.close();
adaptera
=new
sqldataadapter(sql2, myconnection);
adaptera.fill(ds,"b
");datatable dtparent
=ds.tables["a
"];datatable dtchild
=ds.tables["b
"];datarow dr;
for(
inti=0
;i<
dtchild.rows.count;i++)
dtparent.rows.add(dr);
}this
.datagrid1.datasource
=ds.tables["a
"].defaultview;
this
.datagrid1.databind();
方法2:
//兩個結構一樣的dt合併
datatable datatable1 = new datatable();
datatable datatable2 = new datatable();
datatable newdatatable = datatable1.clone();
object obj = new object[newdatatable.columns.count];
for (int i = 0; i < datatable1.rows.count; i++)
for (int i = 0; i < datatable2.rows.count; i++)
//兩個結構不同的dt合併
///
/// 將兩個列不同的datatable合併成乙個新的datatable
///
/// 表1
/// 表2
/// 合併後新的表名
///
private datatable unitedatatable( datatable dt1 ,datatable dt2 ,string dtname)
object obj = new object[dt3.columns.count];
for (int i = 0; i < dt1.rows.count; i++)
if( dt1.rows.count >= dt2.rows.count )}}
else
for( int i = 0 ;i < dt2.rows.count ;i++ )}}
dt3.tablename = dtname ; //設定dt的名字
return dt3 ;
}
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