public bool MovePrevious()
{
if (!this.currentPosition.HasValue)
{
return(false);
}
int num1 = 0;
if (this.viewState.EnablePaging)
{
num1 = this.viewState.PageIndex * this.viewState.PageSize;
}
int?currentPosition1;
int num2;
do
{
VirtualGridTraverser virtualGridTraverser = this;
int?currentPosition2 = virtualGridTraverser.currentPosition;
virtualGridTraverser.currentPosition = currentPosition2.HasValue ? new int?(currentPosition2.GetValueOrDefault() - 1) : new int?();
if (this.viewState.IsPinned(this.currentPosition.Value))
{
currentPosition1 = this.currentPosition;
num2 = num1;
}
else
{
break;
}
}while ((currentPosition1.GetValueOrDefault() >= num2 ? 0 : (currentPosition1.HasValue ? 1 : 0)) != 0);
int?currentPosition3 = this.currentPosition;
int num3 = num1;
if ((currentPosition3.GetValueOrDefault() >= num3 ? 0 : (currentPosition3.HasValue ? 1 : 0)) != 0)
{
this.currentPosition = new int?();
}
return(true);
}
public bool MoveNext()
{
int val1 = this.viewState.ItemCount - 1;
if (this.viewState.EnablePaging)
{
val1 = Math.Min(val1, (this.viewState.PageIndex + 1) * this.viewState.PageSize - 1);
}
if (!this.currentPosition.HasValue)
{
if (val1 < 0)
{
return(false);
}
this.currentPosition = new int?(0);
if (this.viewState.EnablePaging)
{
this.currentPosition = new int?(this.viewState.PageIndex * this.viewState.PageSize);
}
int?currentPosition1;
VirtualGridTraverser virtualGridTraverser;
for (; this.viewState.IsPinned(this.currentPosition.Value); virtualGridTraverser.currentPosition = currentPosition1.HasValue ? new int?(currentPosition1.GetValueOrDefault() + 1) : new int?())
{
int?currentPosition2 = this.currentPosition;
int num = val1;
if ((currentPosition2.GetValueOrDefault() > num ? 0 : (currentPosition2.HasValue ? 1 : 0)) != 0)
{
virtualGridTraverser = this;
currentPosition1 = virtualGridTraverser.currentPosition;
}
else
{
break;
}
}
int?currentPosition3 = this.currentPosition;
int num1 = val1;
if ((currentPosition3.GetValueOrDefault() <= num1 ? 0 : (currentPosition3.HasValue ? 1 : 0)) == 0)
{
return(true);
}
this.currentPosition = new int?(val1);
return(false);
}
int?currentPosition4 = this.currentPosition;
int num2 = val1;
if ((currentPosition4.GetValueOrDefault() >= num2 ? 0 : (currentPosition4.HasValue ? 1 : 0)) == 0)
{
return(false);
}
int?currentPosition5;
int num3;
do
{
VirtualGridTraverser virtualGridTraverser = this;
int?currentPosition1 = virtualGridTraverser.currentPosition;
virtualGridTraverser.currentPosition = currentPosition1.HasValue ? new int?(currentPosition1.GetValueOrDefault() + 1) : new int?();
if (this.viewState.IsPinned(this.currentPosition.Value))
{
currentPosition5 = this.currentPosition;
num3 = val1;
}
else
{
break;
}
}while ((currentPosition5.GetValueOrDefault() >= num3 ? 0 : (currentPosition5.HasValue ? 1 : 0)) != 0);
return(!this.viewState.IsPinned(this.currentPosition.Value));
}