LykosAI/StabilityMatrix · warning · DataValidationException

Height must be a positive integer

Error message

Height must be a positive integer

What it means

This DataValidationException is thrown by the Height field's Validator when the entered height is not a positive integer — either unparseable as an int or <= 0. It mirrors the Width validator at line 301.

Solutions

1. Enter a positive whole number such as 1024 in the Height field
2. Strip units or decimals from pasted values
3. Use whole pixels as required by the underlying generation APIs

Example fix

// before
var heightText = "1024px";
// after
var heightText = "1024";

bool isValidHeight(string s) => int.TryParse(s, out var h) && h > 0;

bool IsValidDimension(string s) => int.TryParse(s, out var v) && v > 0;

try { dialog.SaveDimensions(); } catch (DataValidationException ex) { ShowFieldError("Height", ex.Message); }

When it happens

Trigger: Entering 'abc', '768.5', '0', or a negative number into the Height field of the AddRow 'Add Favorite Dimensions' dialog.

Common situations: Copy-paste errors including units ('1024px'), decimals from aspect-ratio calculators, or negative values from formulas.

Understand the failure class

Background: "Must be a positive integer", "Invalid value", "Unsupported": the invalid-argument-value error family, when a library rejects the value you pass — this error's family across 35 libraries.

Related errors

• Height is required
• Width must be a positive integer
• Fields line not found
• Resources.Validation_PackageNameCannotBeEmpty
• Sampler not selected

AI-assisted analysis of LykosAI/StabilityMatrix@af93d6ef57 (2026-09-12). Data as JSON: /api/errors/d9096f5df7f4dce4. Report an issue: GitHub.

Appendix: source

Thrown at StabilityMatrix.Avalonia/ViewModels/Settings/InferenceSettingsViewModel.cs:314

                {
                    if (string.IsNullOrWhiteSpace(text))
                        throw new DataValidationException("Width is required");

                    if (!int.TryParse(text, out var width) || width <= 0)
                        throw new DataValidationException("Width must be a positive integer");
                },
                Watermark = "1024",
            },
            new()
            {
                Label = "Height",
                Validator = text =>
                {
                    if (string.IsNullOrWhiteSpace(text))
                        throw new DataValidationException("Height is required");

                    if (!int.TryParse(text, out var height) || height <= 0)
                        throw new DataValidationException("Height must be a positive integer");
                },
                Watermark = "1024",
            },
        };

        var dialog = DialogHelper.CreateTextEntryDialog("Add Favorite Dimensions", "", textFields);

        if (await dialog.ShowAsync() != ContentDialogResult.Primary)
            return;

        var width = textFields[0].Text;
        var height = textFields[1].Text;

        if (string.IsNullOrWhiteSpace(width) || string.IsNullOrWhiteSpace(height))
            return;

        FavoriteDimensions.Add($"{width} x {height}");
    }

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