Vb.net 如何使用“打开文件”对话框选择图像,然后将该图像放入另一个窗体上的Picturebox中?
如何使用“打开文件”对话框选择图像,然后将该图像放入另一个窗体上的Picturebox控件中Vb.net 如何使用“打开文件”对话框选择图像,然后将该图像放入另一个窗体上的Picturebox中?,vb.net,picturebox,Vb.net,Picturebox,如何使用“打开文件”对话框选择图像,然后将该图像放入另一个窗体上的Picturebox控件中 Private Sub btnLogo_Click(sender As Object, e As EventArgs) Handles btnLogo.Click OpenFileDialog1.Title = "Please Select a File" OpenFileDialog1.InitialDirectory = "C:" O
Private Sub btnLogo_Click(sender As Object, e As EventArgs) Handles btnLogo.Click
OpenFileDialog1.Title = "Please Select a File"
OpenFileDialog1.InitialDirectory = "C:"
OpenFileDialog1.ShowDialog()
photo = OpenFileDialog1.FileName.ToString
我猜这是错的,但我不知道该怎么办
然后一旦我选择了一个图像;将该图像放入另一个窗体上的Picturebox控件的适当代码是什么?如果我理解正确,那么这很容易:
Sub OpenAnImageInPicturebox(ByRef pb As PictureBox)
Dim ofd As New OpenFileDialog
ofd.Filter = "Bitmap|*.bmp|JPEG|*.jpg" 'If you like file type filters you can add them here
'any other modifications to the dialog
If ofd.ShowDialog = Windows.Forms.DialogResult.Cancel Then Exit Sub
Try
Dim bmp As New Bitmap(ofd.FileName)
If Not IsNothing(pb.Image) Then pb.Image.Dispose() 'Optional if you want to destroy the previously loaded image
pb.Image = bmp
Catch
MsgBox("Not a valid image file.")
End Try
End Sub
试试这个:
photo = image.Fromfile( OpenFileDialog1.FileName)
希望能有所帮助我在寻找
过滤器时遇到了这个问题,作为对以前答案的更新
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
OpenFileDialog1.Title = "Please select a file"
OpenFileDialog1.InitialDirectory = "c:"
OpenFileDialog1.ShowDialog()
PictureBox1.ImageLocation = OpenFileDialog1.FileName.ToString
PictureBox1.Visible = True
End Sub
您想使用OpenFileDialog
选择一个图像
放入另一个表单中的图片盒控件
。我建议:-
使用模块:使用任何表单上的图像
使用默认图像:在出现错误时显示在PictureBox控件中。使用项目资源添加现有资源(即PNG图像文件:noPhotoUsr)
模块1的代码
Module Module1
Public Function _GetImgOFD(Frm As Form, PicBx As PictureBox) As Bitmap
Dim _ErrBitmap As Bitmap = My.Resources.noPhotoUsr
Dim ChosenBitmap As Bitmap
Using OFD As OpenFileDialog = New OpenFileDialog
With OFD
.Filter = ("Image File (*.ico;*.jpg;*.bmp;*.gif;*.png)|*.jpg;*.bmp;*.gif;*.png;*.ico")
.RestoreDirectory = True
.Multiselect = False
.CheckFileExists = True
If .ShowDialog(Frm) = DialogResult.OK Then
ChosenBitmap = Bitmap.FromFile(.FileName)
Else
ChosenBitmap = _ErrBitmap
End If
End With
End Using
Return ChosenBitmap
End Function
End Module
在任何表单
,图片框点击事件中使用的代码
Private Sub PictureBox1_Click(sender As Object, e As EventArgs) Handles PictureBox1.Click
PictureBox1.Image = Module1._GetImgOFD(Me, PictureBox1)
End Sub
您需要使用GDI+
来绘制彼此之间的图像。要将图像从文件放到pic框中,请查看System.Drawing.image
类以了解下一步。@Protoix,他说“在另一个图像上”我读到了添加分层图像的内容。@DonA是的,在第一句话中,它是另一种形式的图片框中的,
,然后它变为,最后将该图像放入另一种形式的图片框中。我是在回答第一个问题,如果这是他/她真正的意思的话。我希望他们能为我们澄清这一点。