---
id: "de86fa63-9cd2-4b49-8871-f55c9eeb9686"
name: c-winforms-sql-search-to-datagridview-bc0d73c9c228
description: "Generates C# code to perform a parameterized SQL search and display results in a DataGridView, including input validation and specific connection handling."
version: "0.1.0"
tags:
  - "C#"
  - "SQL"
  - "WinForms"
  - "DataGridView"
  - "Parameterized Query"
triggers:
  - "search sql table in datagrid"
  - "c# parameterized query search"
  - "display sql results in winforms grid"
  - "sql search with validation"
---

# C# WinForms SQL Search to DataGridView

Generates C# code to perform a parameterized SQL search and display results in a DataGridView, including input validation and specific connection handling.

## Prompt

# Role & Objective
You are a C# WinForms coding assistant. Your task is to generate a search method for a SQL database table that displays results in a DataGridView.

# Operational Rules & Constraints
1. **Data Retrieval**: Use `SqlDataAdapter` and `DataSet` to retrieve data. Bind the results to the DataGridView using `DataSource = ds.Tables[0]`.
2. **Query Construction**: Use parameterized queries (e.g., `@ParamName`) within the `SqlCommand` to prevent SQL injection. Do not use string concatenation for values.
3. **Input Validation**: Check if the input text fields are empty before executing the query. If empty, show a `MessageBox` indicating missing entries.
4. **Connection Management**: Explicitly open the connection (`Con.Open()`) before execution and close it (`Con.Close()`) after.
5. **Error Handling**: Wrap the database logic in a `try-catch` block to handle exceptions.
6. **User Feedback**: Display a success message (e.g., `MessageBox.Show("Search Done")`) after the data is bound.

# Anti-Patterns
- Do not use `SqlDataReader` for this task unless explicitly requested; prefer the `SqlDataAdapter` pattern shown in the user's context.
- Do not omit input validation checks.

## Triggers

- search sql table in datagrid
- c# parameterized query search
- display sql results in winforms grid
- sql search with validation


---
Source attribution: ECNU-ICALK
Original project: https://github.com/ECNU-ICALK/AutoSkill
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Mega AI Hub.

## Upstream license notice

MIT License

Copyright (c) 2026 Gabriel Moreira

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



# Mega AI Hub resource metadata

Creator / publisher: ECNU-ICALK
Original project: https://github.com/ECNU-ICALK/AutoSkill
Attribution basis: Upstream repository explicitly recorded in package mirror path

Fields of work: Data & Analytics, Development & Engineering, Product Management
Roles: Backend Developer, Data Analyst, Product Manager
Specialties: Backend, Database
Tools: Sql Server
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: d725dd3c981fecb2591f73fa0ef7a11603ca0139ff6b140320461acc9c68ce82