[英]How to synchronise horizontal scrolling in DataGridViews
我有三個DataGridViews:dgvSTART; dgvFilter; dgvEdit。
我已經為dgvSTART編輯了滾動事件,並與此處的答案保持一致,如下所示:
dgvEdit.FirstDisplayedScrollingColumnIndex = dgvSTART.FirstDisplayedScrollingColumnIndex;
dgvFilter.FirstDisplayedScrollingColumnIndex = dgvSTART.FirstDisplayedScrollingColumnIndex;
這是可行的,但僅當dgvSTART的左列更改時(即,該列消失/顯示在面板的側面)時,才滾動其他兩個DataGridView。
是否有可能使所有datagridviews滾動為一個(忽略列邊界)?
我認為使用DataGridView的HorizontalScrollingOffset屬性是可能的,但是我的嘗試失敗了:
private void dgvSTART_Scroll(object sender, ScrollEventArgs e)
{
//using matching the first column shown
dgvEdit.FirstDisplayedScrollingColumnIndex = dgvSTART.FirstDisplayedScrollingColumnIndex;
dgvFilter.FirstDisplayedScrollingColumnIndex = dgvSTART.FirstDisplayedScrollingColumnIndex;
try
{
//trying to use horizontalscrollingoffset
if (e.NewValue < e.OldValue)
{
dgvEdit.HorizontalScrollingOffset = dgvFilter.HorizontalScrollingOffset - 10;
dgvFilter.HorizontalScrollingOffset = dgvFilter.HorizontalScrollingOffset - 10;
}
else
{
dgvEdit.HorizontalScrollingOffset = dgvEdit.HorizontalScrollingOffset + 10;
dgvFilter.HorizontalScrollingOffset = dgvFilter.HorizontalScrollingOffset + 10;
}
}
catch (Exception) { }//do nothing with the exception
}
這個代碼怎么樣?
dataGridView_Scroll
需要在表單或其他形式的構造函數中注冊。
dgvSTART.Scroll += new ScrollEventHandler(dataGridView_Scroll);
dgvFilter.Scroll += new ScrollEventHandler(dataGridView_Scroll);
dgvEdit.Scroll += new ScrollEventHandler(dataGridView_Scroll);
dataGridView_Scroll
如下。
void dataGridView_Scroll(object sender, ScrollEventArgs e)
{
DataGridView src;
DataGridView dst1 = null;
DataGridView dst2 = null;
src = (DataGridView)sender;
if (src == dgvSTART)
{
dst1 = dgvFilter;
dst2 = dgvEdit;
}
else if (src == dgvFilter)
{
dst1 = dgvSTART;
dst2 = dgvEdit;
}
else if (src == dgvEdit)
{
dst1 = dgvSTART;
dst2 = dgvFilter;
}
if (dst1 != null && dst2 != null)
{
dst1.HorizontalScrollingOffset = dst2.HorizontalScrollingOffset = src.HorizontalScrollingOffset;
dst1.FirstDisplayedScrollingRowIndex = Math.Min(dst1.RowCount - 1, src.FirstDisplayedScrollingRowIndex);
dst2.FirstDisplayedScrollingRowIndex = Math.Min(dst2.RowCount - 1, src.FirstDisplayedScrollingRowIndex);
}
}
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