我正在使用Devexpress Xtragrid TileView模块。
基本上我希望我的代码可以这样工作:
所以,我能够完成第3步。 但我无法加载图片。
图片本身,它不是字节数组。它是一个图像路径。 e.q:D:/test/1.jpg
那么,我该如何加载图片?
Protected Overridable Sub InitData()
Try
Dim homesTable = ds.Tables(0)
homesTable.Columns.Add("ImageCol")
For Each row_Renamed As DataRow In homesTable.Rows
Dim img As Image = Image.FromFile(row_Renamed("memberPhoto")) 'I tried this, but didn't work
row_Renamed("ImageCol") = img
Next row_Renamed
GridControl1.DataSource = homesTable
Catch
End Try
End Sub
Private Sub setupTile()
'For i = 0 To j - 1
Try
TileView1.BeginUpdate()
'TileView1.DataSource = ds.Tables(0)
TileView1.OptionsTiles.RowCount = 3
TileView1.OptionsTiles.Padding = New Padding(20)
TileView1.OptionsTiles.ItemPadding = New Padding(10)
TileView1.OptionsTiles.IndentBetweenItems = 20
TileView1.OptionsTiles.ItemSize = New Size(320, 170)
TileView1.Appearance.ItemNormal.ForeColor = Color.White
TileView1.Appearance.ItemNormal.BorderColor = Color.Transparent
'Setup tiles template
Dim leftPanel As New TileViewItemElement()
Dim splitLine As New TileViewItemElement()
Dim nameCaption As New TileViewItemElement()
Dim nameValue As New TileViewItemElement()
Dim statusCaption As New TileViewItemElement()
Dim statusValue As New TileViewItemElement()
Dim RGPCaption As New TileViewItemElement()
Dim RGPvalue As New TileViewItemElement()
Dim imageTile As New TileViewItemElement()
TileView1.TileTemplate.Add(leftPanel)
TileView1.TileTemplate.Add(splitLine)
TileView1.TileTemplate.Add(nameCaption)
TileView1.TileTemplate.Add(nameValue)
TileView1.TileTemplate.Add(statusCaption)
TileView1.TileTemplate.Add(statusValue)
TileView1.TileTemplate.Add(RGPCaption)
TileView1.TileTemplate.Add(RGPvalue)
TileView1.TileTemplate.Add(imageTile)
'
'nameValue.Text = ""
'statusValue.Text = ""
'RGPvalue.Text = ""
'imageTile.Image = Nothing
'
leftPanel.StretchVertical = True
leftPanel.Width = 190
leftPanel.TextLocation = New Point(-10, 0)
leftPanel.Appearance.Normal.BackColor = Color.FromArgb(58, 166, 101)
'
splitLine.StretchVertical = True
splitLine.Width = 3
splitLine.TextAlignment = TileItemContentAlignment.Manual
splitLine.TextLocation = New Point(190, 0)
splitLine.Appearance.Normal.BackColor = Color.White
'
nameCaption.Text = "Name"
nameCaption.TextAlignment = TileItemContentAlignment.TopLeft
nameCaption.Appearance.Normal.FontSizeDelta = -1
'
nameValue.Column = TileView1.Columns("preferredName")
nameValue.AnchorElement = nameCaption
nameValue.AnchorIndent = 2
nameValue.MaxWidth = 200
nameValue.Appearance.Normal.FontStyleDelta = FontStyle.Bold
'nameValue.Text = ds.Tables(0).Rows(i)("preferredName").ToString
'
statusCaption.Text = "Status"
statusCaption.AnchorElement = nameValue
statusCaption.AnchorIndent = 14
statusCaption.Appearance.Normal.FontSizeDelta = -1
'
statusValue.Column = TileView1.Columns("memberStatus")
statusValue.AnchorElement = statusCaption
statusValue.AnchorIndent = 2
statusValue.Appearance.Normal.FontStyleDelta = FontStyle.Bold
'statusValue.Text = ds.Tables(0).Rows(i)("memberStatus").ToString
'
RGPCaption.Text = "RGP"
RGPCaption.AnchorElement = nameValue
RGPCaption.AnchorIndent = 65
'RGPCaption.TextLocation
'RGPCaption.Appearance.Normal.FontSizeDelta = -1
RGPCaption.Appearance.Normal.Font = New Font("Segoe UI Semibold", 12.0F, System.Drawing.FontStyle.Regular)
'
RGPvalue.Column = TileView1.Columns("code")
RGPvalue.AnchorElement = RGPCaption
RGPvalue.AnchorIndent = 1
RGPvalue.TextAlignment = TileItemContentAlignment.BottomLeft
RGPvalue.Appearance.Normal.Font = New Font("Segoe UI Semilight", 25.75F, System.Drawing.FontStyle.Regular)
'RGPvalue.Text = ds.Tables(0).Rows(i)("code").ToString
'
imageTile.Column = TileView1.Columns("ImageCol")
imageTile.ImageSize = New Size(120, 170)
imageTile.ImageAlignment = TileItemContentAlignment.MiddleRight
imageTile.ImageScaleMode = TileItemImageScaleMode.Stretch
imageTile.ImageLocation = New Point(12, 0)
Catch ex As Exception
XtraMessageBox.Show(ex.Message)
Finally
TileView1.EndUpdate()
End Try
'Next
End Sub
Private Sub loadBtn_Click(sender As Object, e As EventArgs) Handles loadBtn.Click
initData()
setupTile()
End Sub
答案 0 :(得分:0)
可能为时已晚,但在我的情况下,只需要从磁盘读取文件并分配到byte()列。
首先,表列应该是字节数组,所以替换:
CI=true
TRAVIS=true
CONTINUOUS_INTEGRATION=true
有:
homesTable.Columns.Add("ImageCol")
然后我试着替换:
homesTable.Columns.Add(New DataColumn("ImageCol", GetType(Byte)))
有:
row_Renamed("ImageCol") = img
这会将磁盘文件加载到字节数组并显示在tile中。我检查文件是否存在以避免异常。
这是我从磁盘加载图片的方法。
希望它有所帮助。