private void butDown_Click(object sender,EventArgs e)
{
if(textFind.Text!=""){
MsgBox.Show(this,"Not allowed unless search text is empty.");
return;
}
if(!comboSuppliers.IsAllSelected){
MsgBox.Show(this,"Not allowed unless All suppliers are selected.");
return;
}
List<int> listSelected=gridMain.SelectedIndices.ToList<int>();
if(listSelected.Count==0){
MsgBox.Show(this,"Please select at least one supply, first.");
return;
}
for(int i=1;i<listSelected.Count;i++) {
if(_listSupplies[listSelected[0]].Category != _listSupplies[listSelected[i]].Category){
MsgBox.Show(this,"All selected supplies must be in the same category.");
return;
}
if(listSelected[i-1]+1 != listSelected[i]){
MsgBox.Show(this,"Selection must not have gaps.");//makes my math too hard
return;
}
}
if(listSelected[listSelected.Count-1]==_listSupplies.Count-1){
return;//already at bottom
}
if(_listSupplies[listSelected[listSelected.Count-1]].Category
!= _listSupplies[listSelected[listSelected.Count-1]+1].Category){
MsgBox.Show(this,"Already at bottom of category.");
return;
}
int countMove=_listSupplies[listSelected[listSelected.Count-1]+1].ItemOrder-_listSupplies[listSelected[listSelected.Count-1]].ItemOrder;//example 5-4=1
List<long> listSupplyNums=new List<long>();
for(int i=0;i<listSelected.Count;i++) {
listSupplyNums.Add(_listSupplies[listSelected[i]].SupplyNum);
}
Supplies.OrderAdd(listSupplyNums,countMove);
_listSupplies[listSelected[listSelected.Count-1]+1].ItemOrder
-=listSelected.Count+countMove-1;//Example 5-5+1-1=0, while the 5 selected items moved down to occupy 1 through 5.
Supplies.Update(_listSupplies[listSelected[listSelected.Count-1]+1]);
FillGrid();
int[] indicesNew=new int[listSelected.Count];
for(int i=0;i<listSelected.Count;i++){
indicesNew[i]=listSelected[i]+1;
}
gridMain.SetSelected(indicesNew,true);
}
