从DataGridView到VB.NET中的PictureBox的图像 [英] Image from DataGridView to PictureBox in VB.NET

问题描述

我正在VB.NET中从事图像处理项目.这样，我可以从文件夹浏览图像并将其显示在PictureBox中.之后，我存储这些图片以从数据库访问.我正在使用DataGridView 控件.但是在编译过程中，图像框上未显示图像.图像框不可见.它显示``处理了空异常''.我想给什么编码? div class ="h2_lin">解决方案

兰迪森

为了防止重复，在表(保存图像信息的位置)中有两列(例如OriginalFileName和GeneratedFileName).上传图像时，将图像名称更改为GUID(或任何自动生成的ID)，然后将此GUID保存在GeneratedFileName列下，并将Original File Name保存在OriginalFileName列下.

希望我回答了您的问题.

谢谢
潘纳(Panneer Selvam)J

I am working on an image processing project in VB.NET. In that, I can browse images from a folder and display them to a PictureBox. After that, I store those pictures to access from the database. I am using the DataGridView control.but during compilation,image did not displaying on the picture box.the picture box was invisible.it shows ''null exception handled''.what may be the coding do i want to give?

解决方案

Hi Randyson

For preventing the duplication have two columns (say OriginalFileName & GeneratedFileName) in the table (where you save the image information). When you upload the image change the image name to a guid (or any auto-generated Id) save this guid under GeneratedFileName Column & Original File Name under OriginalFileName Column.

Hope i have answered for your Question.

Thanks
Panneer Selvam J

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