我正在从代码构建一个窗口。我添加了一个标题 TextBlock,然后为 listBox 添加了一些不同的元素,其中每个元素都由 Grid ---> children[0] 一个 TextBlock 来解释什么是元素 ---> children 1一个要输入的 TextBox 或组合框数据。最后一个按钮。
生成后将焦点放在第一个元素(通常是第一个 TextBox)上,以便用户可以立即输入数据。至此,一切正常。
--ADD-- 我忘了说每个元素 = 网格 = 文本块 + 文本框或组合框,都是父列表框的一个元素。所以我想从每个文本框或组合框独立于它们所在的列表框元素移动。
之后,我希望用户能够通过 TAB 移动到下一个元素(文本框或组合框)。因此,在生成以前的窗口时,我使用计数器并设置
tb.TabIndex = tabIndex++;
或 ComboBox.TabIndex = tabIndex++;
现在的问题是,当我按 TAB 在第一个 TextBox 中输入数据后,插入符号丢失了,所以焦点......
---ADD2--- 这里是代码:
private void PreparareTraceFieldGrid(ListBox lbTracefields, ObservableCollection<Tuple<string, object, object>> obc, bool IsReadOnly)
{
bool IsFocusSet = false;
/*---TITOLO---*/
OutlinedTextBlock otbTitle = CreateOtbForTraceFieldInputWindow(Languages.Word(eWords.InsertTracefields));
lbTracefields.Items.Add(otbTitle);
/*----CICLO----*/
int tabIndex = 0;
foreach (var item in obc)
{
Grid gridInternal = new Grid();
gridInternal.Background = Brushes.Transparent;
ColumnDefinition cd1 = new ColumnDefinition();
cd1.Width = new GridLength(300, GridUnitType.Pixel);
ColumnDefinition cd2 = new ColumnDefinition();
cd2.Width = new GridLength(1.0, GridUnitType.Star);
gridInternal.ColumnDefinitions.Add(cd1);
gridInternal.ColumnDefinitions.Add(cd2);
OutlinedTextBlock otb = CreateOtbForTraceFieldInputWindow(item.Item1);
otb.FontSize = easyRunData.OptionsGraphical.FontSize;
otb.Stroke = new SolidColorBrush(easyRunData.OptionsGraphical.StrokeColour);
otb.StrokeThickness = easyRunData.OptionsGraphical.StrokeSize;
Grid.SetColumn(otb, 0);
gridInternal.Children.Add(otb);
string strDataType = item.Item2.ToString();
eTraceFieldDataTypes eDataType = (eTraceFieldDataTypes)Enum.Parse(typeof(eTraceFieldDataTypes), strDataType);
switch (eDataType)
{
case eTraceFieldDataTypes.STRING:
case eTraceFieldDataTypes.FLOAT:
case eTraceFieldDataTypes.INTEGER:
case eTraceFieldDataTypes.STRING_READONLY:
TextBox tb = new TextBox();
tb.CaretBrush = Brushes.White;
tb.FontSize = easyRunData.OptionsGraphical.FontSize;
tb.MinWidth = 200;
tb.Height = easyRunData.OptionsGraphical.FontSize + 15;
tb.VerticalAlignment = VerticalAlignment.Center;
tb.Background = Brushes.Transparent;
tb.Margin = new Thickness(10);
tb.TabIndex = tabIndex++;
tb.KeyDown += (senderEvent, args) => { AnalyzeTraceFields_IF_EMPTY(easyRunData.Tracefields.TraceFieldsUser, (Grid)lbTracefields.Parent); };
if (eDataType == eTraceFieldDataTypes.STRING_READONLY && !IsReadOnly)
tb.BorderBrush = Brushes.Yellow;
else
tb.BorderBrush = Brushes.Gainsboro;
Grid.SetColumn(tb, 1);
gridInternal.Children.Add(tb);
lbTracefields.Items.Add(gridInternal);
if (!IsFocusSet)
{
tb.Focus();
IsFocusSet = true;
}
break;
case eTraceFieldDataTypes.BOOL:
case eTraceFieldDataTypes.BOOL_READONLY:
Border brd = new Border();
brd.Margin = new Thickness(10);
brd.MinWidth = 200;
brd.Height = easyRunData.OptionsGraphical.FontSize + 15;
if (eDataType == eTraceFieldDataTypes.BOOL_READONLY && !IsReadOnly)
brd.BorderBrush = Brushes.Yellow;
else
brd.BorderBrush = Brushes.Gainsboro;
brd.BorderThickness = new Thickness(3);
ComboBox cmb = new ComboBox();
cmb.VerticalAlignment = VerticalAlignment.Center;
cmb.Background = Brushes.Transparent;
cmb.Items.Add(Languages.Word(eWords.True));
cmb.Items.Add(Languages.Word(eWords.False));
cmb.BorderBrush = Brushes.Gainsboro;
cmb.BorderThickness = new Thickness(3);
cmb.Margin = new Thickness(0);
cmb.TabIndex = tabIndex++;
cmb.DropDownClosed += (senderEvent, args) => { AnalyzeTraceFields_IF_EMPTY(easyRunData.Tracefields.TraceFieldsUser, (Grid)lbTracefields.Parent); };
Grid.SetColumn(brd, 1);
brd.Child = cmb;
gridInternal.Children.Add(brd);
lbTracefields.Items.Add(gridInternal);
if (!IsFocusSet)
{
cmb.Focus();
IsFocusSet = true;
}
break;
default:
break;
}
}