显示数据库中的图像 [英] Display images from Database

问题描述

大家好......



i得到了一个情况......在我的项目中，我需要在银灯页面上显示来自数据库的图像......



所以我这样开发......


我的XAML中的
...

Hello everyone.....

i got a situation... in my project, i need to show images from database on silver light pages...

so i developed like this...

in my XAML...

<Image Grid.Row="2" Margin="10" x:Name="image" Width="300" Height="200" HorizontalAlignment="Left"></Image>

和我的代码

and in my code

byte[] imageData = questions.ElementAt(Convert.ToInt16(x.Name)).Image;
            var bitmapImage = new BitmapImage();
            bitmapImage.SetSource(new MemoryStream(imageData));
            image.Source = bitmapImage;

但是图片没有渲染....任何人都可以帮助我

but the image is not rendering.... can anyone help me

推荐答案

嗨。如果我是你：

在DataBase中保存我的图像名称并创建一个这样的方法：

public static BitmapImage GetBitMapImage（string relativeImage）

{

string imagePath = string.format（pack：// application：,,, / {0}; component /Images/{1}\",Assembly.GetExecutingAssembly().GetName().Name,relativeImage）;



URI uri = new URI（imagePath，UriKind.RelativeOrAbsolute ）;

返回新的BitmapImage（uri）;

}



imagePath中的图像是一个文件夹在您的应用程序中，所有图像都位于其中。





当您需要图像时。您必须写：

Image myImage = new Image（）;

myImage.Source = GetBitMapImage（这个地方必须填充你的图像名称保存在DataBase中）;



例如：

myImage.source = GetBitMapImage（SaveIcon.png）;





此操作非常有用，因为当您需要加载图像时。

祝你好运

Hi.If i was you:
Save the name of my images in DataBase and Create a method like this:
public static BitmapImage GetBitMapImage(string relativeImage)
{
string imagePath=string.format("pack://application:,,,/{0};component/Images/{1}",Assembly.GetExecutingAssembly().GetName().Name,relativeImage);

URI uri=new URI(imagePath,UriKind.RelativeOrAbsolute);
return new BitmapImage(uri);
}

"Images" in imagePath is a folder in your application that all of image is located in it.


when you need to an image.you must write:
Image myImage=new Image();
myImage.Source=GetBitMapImage(this place must populate with your image name that is saved in DataBase);

for example :
myImage.source=GetBitMapImage("SaveIcon.png");


this acction is useful because when you need your image is loaded.
Good Luck

请参阅类似的主题：将图像加载到磁盘上但未包含在XAML上的项目中 [ ^ ]

Refer similar thread: Loading images on disk but not included in the project on XAML[^]

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