主题：[求助]图片添加水印报错了

        Dim file As String = e.FileName
        Dim txt As String =  e.DataRow("第一列")
        Dim img As image = getImage(file)
        Dim bmp  = new bitmap(img.Width, img.Height)
        Dim g = graphics.fromimage(bmp)
        g.DrawImage(img,0,0) 
        g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High
        g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality
        Dim fnt As new Font("微软雅黑", 60, FontStyle.Bold) 
        Dim size = g.MeasureString(txt, fnt)
        g.TranslateTransform((img.width-size.width)/2, img.Height - size.height - 50)
        Dim semiTransBrush As new System.Drawing.SolidBrush(Color.FromArgb(120, 177, 171, 171)) 
        g.DrawString(txt, fnt, semiTransBrush, new PointF(0,0))
        bmp.Dispose
        semiTransBrush.Dispose
        e.FileName=e.DataRow("第一列")
        e.SubFolder = e.DataRow("第三列")

还是报错。startIndex 不能大于字符串长度

ww

        e.SubFolder = e.DataRow("第三列")

还是报“startIndex 不能大于字符串长度” 这个错

都是有值的

datacolchanged里根本没有e.FileName 这个属性

可以了，谢谢