如何获取WinCell中文本对齐方式？WinForms CodedUI测试求助

Hey there! Let's break down how to solve this problem, starting with why your initial approach didn't work, then moving to the correct solution.

Why Your DataGridView Conversion Failed #

First off, your attempt to bind a WinTable (a CodedUI test control wrapper) to a DataGridView won't work because these are completely different types:

• WinTable is a UI test abstraction that represents the table control in your application under test (AUT). It's not a data source—it's just a way for CodedUI to interact with the UI element.
• DataGridView is a WinForms UI control meant to display data directly. You can't bind a test control wrapper to it like you would a dataset or collection.

Correct Approach: Access Native WinForms Control Properties #

CodedUI's WinCell (and other Win* controls) expose a NativeElement property that gives you direct access to the underlying WinForms control in the AUT. For a WinCell mapped to a DataGridViewCell, you can cast this NativeElement to DataGridViewCell and then access its Style.Alignment property to check text alignment.

Step-by-Step Code Example #

1. First, make sure your project references System.Windows.Forms (you'll need this to work with DataGridViewCell).
2. Use this code to retrieve the alignment of your WinCells:

// Locate your WinTable as before
WinTable winTable = new WinTable(winWindow2) { TechnologyName = "MSAA" };
winTable.SearchProperties.Add(UITestControl.PropertyNames.ControlType, "Table");
winTable.SearchProperties.Add(UITestControl.PropertyNames.Name, "DataGridView");

// Wait for the table to be ready (good practice for test stability)
winTable.WaitForControlReady();

// Iterate through rows and cells
foreach (WinRow row in winTable.Rows)
{
    foreach (WinCell cell in row.Cells)
    {
        // Cast NativeElement to DataGridViewCell
        if (cell.NativeElement is DataGridViewCell dataGridViewCell)
        {
            // Get the alignment property
            DataGridViewContentAlignment alignment = dataGridViewCell.Style.Alignment;
            
            // Verify the alignment (example: check if it's right-aligned)
            if (alignment == DataGridViewContentAlignment.MiddleRight)
            {
                Console.WriteLine($"Cell at ({row.RowIndex}, {cell.ColumnIndex}) is right-aligned.");
                // Add your assertion here, e.g.:
                // Assert.AreEqual(DataGridViewContentAlignment.MiddleRight, alignment);
            }
            else
            {
                Console.WriteLine($"Cell at ({row.RowIndex}, {cell.ColumnIndex}) is aligned as: {alignment}");
            }
        }
        else
        {
            Console.WriteLine("Could not cast WinCell to DataGridViewCell.");
        }
    }
}

Notes to Keep in Mind #

• TechnologyName: You're using MSAA here, which works for most WinForms controls, but if you're targeting newer WinForms apps, you might also try UIA (UI Automation) as the technology name—sometimes it provides more reliable access to native properties.
• Assertions: Replace the Console.WriteLine calls with your test framework's assertion methods (e.g., Assert from MSTest, Assert.That from NUnit) to validate the alignment against your requirements.
• Exception Handling: Add try-catch blocks if needed to handle cases where the NativeElement cast fails (e.g., if the cell is a custom control instead of a standard DataGridViewCell).

内容的提问来源于stack exchange，提问作者Ivan B