Скачать или смотреть How to Get Cell Count Values from DataGridView in Another Form in C# WinForms

Learn how to efficiently access and display cell count values from a DataGridView located in one form to another in a C- WinForms application. Get step-by-step guidance!
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This video is based on the question https://stackoverflow.com/q/76494245/ asked by the user 'Edilson Lemos' ( https://stackoverflow.com/u/13953948/ ) and on the answer https://stackoverflow.com/a/76494613/ provided by the user 'dr.null' ( https://stackoverflow.com/u/14171304/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Get Cell Count Values from DataGridView in Another Form in C- WinForms

In the world of Windows Forms applications, it's common to work with multiple forms, especially when handling data. One common challenge developers face is needing to retrieve and display data from a DataGridView in a different form. This guide will guide you through the process of obtaining cell count values from a DataGridView situated in one form (Form2) and displaying them in another form (Form1).

Let's dive into the details of how to set this up properly!

The Scenario

In our scenario, we have two forms:

Form1: The main form where we want to display the results.

Form2: Contains a DataGridView (dgResult) that loads random data from a database and counts the occurrences of numbers (from 01 to 25). Each count is displayed in labels corresponding to those numbers.

Understanding the Structure

Loading the Data: The data is fetched from the database using a method that fills a DataGridView with random numbers.

Calculating Counts: We create a dictionary to hold the counts of each number (keyed by the number itself).

Displaying Results: These counts (from Form2) need to be passed back to Form1.

Step-by-Step Solution

1. Fetching Data into the DataGridView

In Form2, we will first need to set up our DataGridView to load data:

[[See Video to Reveal this Text or Code Snippet]]

2. Calculating Counts

Next, we will calculate how many times each number appears in our DataGridView.

[[See Video to Reveal this Text or Code Snippet]]

3. Passing Data from Form2 to Form1

We need a mechanism to expose the results from Form2 to Form1. We create a property in Form2 to retrieve the count dictionary:

[[See Video to Reveal this Text or Code Snippet]]

4. Displaying Results in Form1

Now, in Form1, when we call Form2, we can access this data and populate our labels accordingly:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

With the above steps, you can efficiently retrieve and display cell count values from a DataGridView in one form to labels in another form in a C- WinForms application. This technique enhances how you handle data across different user interfaces smoothly.

Feel free to implement this method in your projects and personalize it to fit your needs! Happy coding!