
Windows Forms. Уровень 2.
Authored by Leonid Karuna
Professional Development
5th Grade
Used 1+ times

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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите корректный способ добавления элемента в список типа ListBox:
this.listBox1.Items += "string";
this.listBox1.Items = "string";
TPK6RsQAyb2ZP4w98dk1PWZQDzh2vqcQXT
this.listBox1.Add("string");
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите корректный способ добавления набора элементов в список ListBox:
this.listBox1.Items.Add(new object[] { "one", "two", "tree"});
this.listBox1.Items.AddRange(new object[] { "one", "two", "tree"});
this.listBox1.Items.AddRange( "one", "two", "tree");
this.listBox1.Items = new object[] { "one", "two", "tree"};
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как удалить все элементы списка типа ListBox:
this.listBox1.Items.Delete();
this.listBox1.Items.Clear();
this.listBox1.Clear();
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Каким образом можно получить коллекцию, которая содержит выбранные в настоящий момент элементы объекта ListBox?
Используя свойство Items
Используя свойство SelectedIndices
Используя свойство SelectedItems
Используя свойство SelectedIndex
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите свойство в котором содержится коллекция отмеченных элементов в данном элементе управления CheckedListBox:
CheckedItems
CheckedIndices
Items
CheckOnClick
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Выберите корректный способ установки приращения индикатора выполнения ProgressBar:
progressBar1.PerfomStep = 5;
progressBar1.SetStep(5);
progressBar1.Step = 5;
progressBar1.Step(5);
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как увеличить текущую позицию индикатора хода выполнения ProgressBar:
Задать свойство ChangeStep
Вызвать метод SetStep(5)
Вызвать метод PerformStep()
Задать свойство Step
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