> For the complete documentation index, see [llms.txt](https://docs.umbraco.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.umbraco.com/umbraco-ui-builder/13.latest/cards/count-cards.md).

# Count Cards

Configuring count cards in Umbraco UI Builder, the backoffice UI builder for Umbraco.

Count cards allow you to define cards directly against the [collection](/umbraco-ui-builder/13.latest/collections/overview.md) configuration, providing a basic **where clause** to use in a count SQL statement. These work perfectly for basic data visualizations based on counts of entities in a collection.

If you need to do more than a basic count, you'll want to take a look at the [custom cards](/umbraco-ui-builder/13.latest/cards/custom-cards.md) documentation.

## Adding a count card to a collection

Cards allow you to display basic summaries of key information that may be useful to the editor.

### **AddCard(string name, Lambda whereClauseExpression, Lambda cardConfig = null) : CardConfigBuilder**

Adds a card with the given name and **where clause** filter expression. Expression must be a `boolean` expression.

```csharp
// Example
collectionConfig.AddCard("Older than 30", p => p.Age > 30, cardConfig => {
    ...
});
```

### **AddCard(string name, string icon, Lambda whereClauseExpression, Lambda cardConfig = null) : CardConfigBuilder**

Adds a card with the given name + icon and **where clause** filter expression. Expression must be a `boolean` expression.

```csharp
// Example
collectionConfig.AddCard("Older than 30", "icon-umb-users", p => p.Age > 30, cardConfig => {
    ...
});
```

### Change the color of a count card

#### **SetColor(string color) : CardConfigBuilder**

Sets the color of the card.

```csharp
// Example
cardConfig.SetColor("blue");
```

### Add a suffix to a count value

#### **SetSuffix(string suffix) : CardConfigBuilder**

Sets the suffix of the card value.

```csharp
// Example
cardConfig.SetSuffix("years");
```

### Formatting the value of a count

#### **SetFormat(Lambda formatExpression) : CardConfigBuilder**

Sets the format expression for the card.

```csharp
// Example
cardConfig.SetFormat((v) => $"{v}%");
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.umbraco.com/umbraco-ui-builder/13.latest/cards/count-cards.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.