能否通过循环批量将窗口设计的Label控件存入数组？

Absolutely! You don’t have to manually assign each Label to the array—there’s a far more efficient way using your form’s (or container’s) Controls collection and a loop. This scales perfectly whether you have 10 labels or 50. Here’s how to do it:

Basic Loop Approach #

You can iterate through your desired range of label numbers, construct each control’s name dynamically, and use Controls.Find() to locate and add it to the array. This works seamlessly for controls named in a consistent pattern like label1, label2, etc.

int totalLabels = 10; // Update this to 50 or your actual count
Label[] labelArray = new Label[totalLabels];

for (int i = 0; i < totalLabels; i++)
{
    // Build the control name (e.g., "label1" when i=0, since we start counting from 1)
    string controlName = $"label{i + 1}";
    
    // Search for the control—set the second parameter to "true" to check child containers too
    Control[] matchingControls = this.Controls.Find(controlName, true);
    
    // If we found a match, cast it to Label and add to the array
    if (matchingControls.Length > 0 && matchingControls[0] is Label targetLabel)
    {
        labelArray[i] = targetLabel;
    }
    else
    {
        // Optional: Handle missing controls to avoid runtime errors
        labelArray[i] = null;
        // Or throw an exception if you want to enforce existence:
        // throw new InvalidOperationException($"Label {controlName} was not found!");
    }
}

Concise LINQ Approach #

If you prefer a more compact solution, you can use LINQ to generate the array in one line (requires C# 6+):

int totalLabels = 10;
Label[] labelArray = Enumerable.Range(1, totalLabels)
    .Select(labelNumber => this.Controls.Find($"label{labelNumber}", true).FirstOrDefault() as Label)
    .ToArray();

Key Notes: #

• If your labels are inside a container (like a Panel or GroupBox), replace this.Controls with the container’s control collection (e.g., myPanel.Controls).
• The true parameter in Controls.Find() ensures the search includes nested child controls—omit it if all labels are directly on the form.
• Adding null checks or error handling is smart to catch cases where a label is missing or renamed accidentally.

内容的提问来源于stack exchange，提问作者Parteek Singh Bedi