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Скачать или смотреть Fixing the Login Page Database Connection Error in ASP.NET

  • vlogize
  • 2025-08-26
  • 0
Fixing the Login Page Database Connection Error in ASP.NET
Connecting the Login page with database failedc#asp.netdatabase
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Описание к видео Fixing the Login Page Database Connection Error in ASP.NET

Learn how to resolve the "SqlDataSource does not have a public property named 'OnClick'" error when connecting your ASP.NET login page to a database.
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This video is based on the question https://stackoverflow.com/q/64303625/ asked by the user 'GerRax' ( https://stackoverflow.com/u/12781894/ ) and on the answer https://stackoverflow.com/a/64303685/ provided by the user 'Dmitry C' ( https://stackoverflow.com/u/10633148/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Connecting the Login page with database failed

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
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Troubleshooting your ASP.NET Login Page Database Connection Error

Connecting a database to your ASP.NET login page seems simple, but things can get tricky. If you've encountered an error saying "SqlDataSource Type 'System.Web.UI.WebControls.SqlDataSource' does not have a public property named 'OnClick'", you’re not alone. This problem typically arises due to a small mistake in your code. This guide will guide you through understanding the issue and how to fix it effectively.

Understanding the Problem

When building a login page using ASP.NET, it’s common to connect to a database to authenticate users. However, if your login page uses a SqlDataSource component, you might run into this error if you mistakenly set an OnClick event on that data source.

Here's a quick outline of your code snippet that demonstrates the error:

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

In this line, OnClick is incorrectly set for the SqlDataSource component, which doesn't support this property.

Solution: Steps to Fix the Error

1. Remove the Incorrect OnClick Property

The first and foremost step to resolving this issue is to remove the OnClick="loginButton_Click" from your SqlDataSource component. Only Button controls should have an OnClick property.

Updated Code Example:

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

2. Verify Your Button Configuration

Make sure your Button that triggers the login action is correctly set up with the OnClick property. In your case, the configuration looks correct:

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

3. Test Your Database Connection Logic

Check Connection String: Ensure your connection string in the web configuration file is correct:

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

Test Query Logic: Ensure your SQL query is properly formatted and references the correct table and column names.

4. Run Your Application

Now that you’ve made these changes, run your application again. You should no longer see the previous error message, and the database connection should successfully process user login attempts.

Summary

Errors related to database connections can often be attributed to minor coding mistakes like incorrect property settings. By removing the OnClick from the SqlDataSource and ensuring your Button control is properly configured, you can get your ASP.NET login page working smoothly with your database.

If you follow this guide and continue to experience issues, consider reviewing your database access permissions and SQL syntax to identify any additional challenges.

Enjoy coding, and happy debugging!

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