WPF MultiBinding TextBox以编程方式编写文本

Question

I have a ComboBox in my View which the user choose a number of TextBox's to create dynamically. each TextBox has an Index i , and I want to bind each of them to array[i] . I searched for a solution and I found that I need to use MultiBinding with a converter.

How can I set a MultiBinding for a TextBox in my C# Code, and not in XAML ? Thanks

Edit: I am creating a grid of textBoxes, in order to create a matrix, and I want to bind all of them to one array that will contain this matrix as a vector. my code:

myGrid.Children.Clear();
myGrid.RowDefinitions.Clear();
myGrid.ColumnDefinitions.Clear();
int row = int.Parse(comboBoxRow.SelectedValue.ToString());
int col = int.Parse(comboBoxCol.SelectedValue.ToString());

for (int i = 0; i < row; i++)
{
    myGrid.RowDefinitions.Add(new RowDefinition());
}
for (int i = 0; i < col; i++)
{
    myGrid.ColumnDefinitions.Add(new ColumnDefinition());
}

for (int i = 0; i < row; i++)
{
    for (int j = 0; j < col; j++)
    {
        TextBox tb = new TextBox();
        tb.SetValue(Grid.RowProperty, i);
        tb.SetValue(Grid.ColumnProperty, j);
        tb.SetBinding(TextBox.TextProperty, "matrixArray[j + col * i]")
        myGrid.Children.Add(tb);
    }
}

So what do I need to write instead of: "array[j + col * i]" ?

in ViewModel: public string[] matrixArray{ get; set; } public string[] matrixArray{ get; set; }

Answer 1

我认为您应该编写以下内容：

tb.SetBinding(TextBox.TextProperty, string.Format("matrixArray[{0}]", j + col * i))