protected virtual void OnColumnHeadersHeightSizeModeChanged (DataGridViewAutoSizeModeEventArgs e)
{
DataGridViewAutoSizeModeEventHandler eh = (DataGridViewAutoSizeModeEventHandler)(Events [ColumnHeadersHeightSizeModeChangedEvent]);
if (eh != null)
eh (this, e);
}
protected virtual void OnRowHeadersWidthSizeModeChanged (DataGridViewAutoSizeModeEventArgs e)
{
DataGridViewAutoSizeModeEventHandler eh = (DataGridViewAutoSizeModeEventHandler)(Events [RowHeadersWidthSizeModeChangedEvent]);
if (eh != null) eh (this, e);
}
/// <include file='doc\DataGridView.uex' path='docs/doc[@for="DataGridView.OnColumnHeadersHeightSizeModeChanged"]/*' />
protected virtual void OnColumnHeadersHeightSizeModeChanged(DataGridViewAutoSizeModeEventArgs e)
{
if (this.columnHeadersHeightSizeMode == DataGridViewColumnHeadersHeightSizeMode.AutoSize)
{
if (!e.PreviousModeAutoSized)
{
// Save current column headers height for later reuse
this.cachedColumnHeadersHeight = this.ColumnHeadersHeight;
}
AutoResizeColumnHeadersHeight(true /*fixedRowHeadersWidth*/, true /*fixedColumnsWidth*/);
}
else if (e.PreviousModeAutoSized)
{
this.ColumnHeadersHeight = this.cachedColumnHeadersHeight;
}
DataGridViewAutoSizeModeEventHandler eh = this.Events[EVENT_DATAGRIDVIEWCOLUMNHEADERSHEIGHTSIZEMODECHANGED] as DataGridViewAutoSizeModeEventHandler;
if (eh != null && !this.dataGridViewOper[DATAGRIDVIEWOPER_inDispose] && !this.IsDisposed)
{
eh(this, e);
}
}
/// <include file='doc\DataGridView.uex' path='docs/doc[@for="DataGridView.OnRowHeadersWidthSizeModeChanged"]/*' />
protected virtual void OnRowHeadersWidthSizeModeChanged(DataGridViewAutoSizeModeEventArgs e)
{
if (this.rowHeadersWidthSizeMode != DataGridViewRowHeadersWidthSizeMode.EnableResizing &&
this.rowHeadersWidthSizeMode != DataGridViewRowHeadersWidthSizeMode.DisableResizing)
{
if (!e.PreviousModeAutoSized)
{
// Save current row headers width for later reuse
this.cachedRowHeadersWidth = this.RowHeadersWidth;
}
AutoResizeRowHeadersWidth(this.rowHeadersWidthSizeMode,
true /*fixedColumnHeadersHeight*/,
true /*fixedRowsHeight*/);
}
else if (e.PreviousModeAutoSized)
{
this.RowHeadersWidth = this.cachedRowHeadersWidth;
}
EventHandler eh = this.Events[EVENT_DATAGRIDVIEWROWHEADERSWIDTHSIZEMODECHANGED] as EventHandler;
if (eh != null && !this.dataGridViewOper[DATAGRIDVIEWOPER_inDispose] && !this.IsDisposed)
{
eh(this, e);
}
}
/// <summary>
/// Extends BeginInvoke so that when a state object is not needed, null does not need to be passed.
/// <example>
/// datagridviewautosizemodeeventhandler.BeginInvoke(sender, e, callback);
/// </example>
/// </summary>
public static IAsyncResult BeginInvoke(this DataGridViewAutoSizeModeEventHandler datagridviewautosizemodeeventhandler, Object sender, DataGridViewAutoSizeModeEventArgs e, AsyncCallback callback)
{
if(datagridviewautosizemodeeventhandler == null) throw new ArgumentNullException("datagridviewautosizemodeeventhandler");
return datagridviewautosizemodeeventhandler.BeginInvoke(sender, e, callback, null);
}
/// <include file='doc\DataGridView.uex' path='docs/doc[@for="DataGridView.OnAutoSizeRowsModeChanged"]/*' />
protected virtual void OnAutoSizeRowsModeChanged(DataGridViewAutoSizeModeEventArgs e)
{
if (this.autoSizeRowsMode == DataGridViewAutoSizeRowsMode.None)
{
// restore cached rows thickness
RestoreRowsCachedThickness();
}
else
{
if (!e.PreviousModeAutoSized)
{
// Save the rows thickness for later reuse
// Note that only visible rows are affected, contrary to columns in OnAutoSizeColumnsModeChanged where all columns are affected.
for (int rowIndex = this.Rows.GetFirstRow(DataGridViewElementStates.Visible);
rowIndex != -1;
rowIndex = this.Rows.GetNextRow(rowIndex, DataGridViewElementStates.Visible))
{
// this call may unshare the row.
int rowHeight = this.Rows.SharedRow(rowIndex).GetHeight(rowIndex);
this.Rows.SharedRow(rowIndex).CachedThickness = rowHeight;
}
}
AdjustShrinkingRows(this.autoSizeRowsMode, true /*fixedWidth*/, true /*internalAutosizing*/);
}
DataGridViewAutoSizeModeEventHandler eh = this.Events[EVENT_DATAGRIDVIEWAUTOSIZEROWSMODECHANGED] as DataGridViewAutoSizeModeEventHandler;
if (eh != null && !this.dataGridViewOper[DATAGRIDVIEWOPER_inDispose] && !this.IsDisposed)
{
eh(this, e);
}
}
protected virtual void OnRowHeadersWidthSizeModeChanged(DataGridViewAutoSizeModeEventArgs e);
protected virtual void OnColumnHeadersHeightSizeModeChanged(DataGridViewAutoSizeModeEventArgs e);
protected virtual void OnAutoSizeRowsModeChanged(DataGridViewAutoSizeModeEventArgs e);
protected virtual void OnColumnHeadersHeightSizeModeChanged(DataGridViewAutoSizeModeEventArgs e)
{
if (this.columnHeadersHeightSizeMode == DataGridViewColumnHeadersHeightSizeMode.AutoSize)
{
if (!e.PreviousModeAutoSized)
{
this.cachedColumnHeadersHeight = this.ColumnHeadersHeight;
}
this.AutoResizeColumnHeadersHeight(true, true);
}
else if (e.PreviousModeAutoSized)
{
this.ColumnHeadersHeight = this.cachedColumnHeadersHeight;
}
DataGridViewAutoSizeModeEventHandler handler = base.Events[EVENT_DATAGRIDVIEWCOLUMNHEADERSHEIGHTSIZEMODECHANGED] as DataGridViewAutoSizeModeEventHandler;
if (((handler != null) && !this.dataGridViewOper[0x100000]) && !base.IsDisposed)
{
handler(this, e);
}
}
protected virtual void OnAutoSizeRowsModeChanged(DataGridViewAutoSizeModeEventArgs e)
{
if (this.autoSizeRowsMode == DataGridViewAutoSizeRowsMode.None)
{
this.RestoreRowsCachedThickness();
}
else
{
if (!e.PreviousModeAutoSized)
{
for (int i = this.Rows.GetFirstRow(DataGridViewElementStates.Visible); i != -1; i = this.Rows.GetNextRow(i, DataGridViewElementStates.Visible))
{
int height = this.Rows.SharedRow(i).GetHeight(i);
this.Rows.SharedRow(i).CachedThickness = height;
}
}
this.AdjustShrinkingRows(this.autoSizeRowsMode, true, true);
}
DataGridViewAutoSizeModeEventHandler handler = base.Events[EVENT_DATAGRIDVIEWAUTOSIZEROWSMODECHANGED] as DataGridViewAutoSizeModeEventHandler;
if (((handler != null) && !this.dataGridViewOper[0x100000]) && !base.IsDisposed)
{
handler(this, e);
}
}
