要在SQL Server列中使用VB.NET代码保存PDF文件,您可以遵循以下步骤:
Imports System.IO
Imports System.Data.SqlClient
Public Class Form1
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim filePath As String = "C:\path\to\your\pdf\file.pdf"
Dim pdfData As Byte() = File.ReadAllBytes(filePath)
Using connection As New SqlConnection("MySqlConnection")
Dim command As New SqlCommand("INSERT INTO YourTableName (PDFContent) VALUES (@PDFContent)", connection)
command.Parameters.AddWithValue("@PDFContent", pdfData)
Try
connection.Open()
command.ExecuteNonQuery()
MessageBox.Show("PDF file saved to database successfully.")
Catch ex As Exception
MessageBox.Show("Error saving PDF file to database: " & ex.Message)
End Try
End Using
End Sub
End Class
注意:在此示例中,我们使用了“varbinary(max)”数据类型来存储PDF文件。这是一种常见的方法,但如果您的PDF文件非常大,可能需要考虑使用其他方法,例如将文件存储在文件系统中,并将文件路径存储在数据库中。
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