如何只显示文件夹中的特定图像到ASP.NET直放站 [英] How to only display certain images in a folder into a Repeater in ASP.NET
问题描述
我有一个中继器,需要一个文件夹中的所有我的图片并显示它。但C $ C钮,我必须做什么$只允许可以说Image1.jpg和Image2.jpg在我的中继器显示。我不不想转发到我的文件夹中显示的所有图像。
我的中继器
< ASP:直放站ID =repImages=服务器OnItemDataBound =repImages_ItemDataBound>
&所述; HeaderTemplate中>&所述p为H.;&下; / HeaderTemplate中>
<&ItemTemplate中GT;
< ASP:超链接ID =hlWhat=服务器的rel =imagebox-BW>
< ASP:图片ID =imgTheImage=服务器/>
< / ASP:超链接>
< / ItemTemplate中>
&所述; FooterTemplate>&下; / P>&下; / FooterTemplate>
< / ASP:直放站>
我的背后code - 网页加载
保护无效的Page_Load(对象发件人,EventArgs的发送)
{
如果(!的IsPostBack)
{
字符串sBasePath = System.Web.HttpContext.Current.Request.ServerVariables [APPL_PHYSICAL_PATH];
如果(sBasePath.EndsWith(\\\\))
sBasePath = sBasePath.Substring(0,sBasePath.Length-1); sBasePath = sBasePath +\\\\+图片; System.Collections.Generic.List<串GT; oList =新System.Collections.Generic.List<串GT;();
的foreach(字符串s在System.IO.Directory.GetFiles(sBasePath,*。*))
{
//我们可以做,例如一些过滤只增加.jpg或东西
oList.Add(System.IO.Path.GetFileName(S)); }
repImages.DataSource = oList;
repImages.DataBind();
} }
我的背后code - Repeater的ItemDataBound事件code
保护无效repImages_ItemDataBound(对象发件人,RepeaterItemEventArgs E)
{
如果(e.Item.ItemType == || ListItemType.AlternatingItem
e.Item.ItemType == ListItemType.Item)
{
字符串sFile = e.Item.DataItem为字符串; //创建thumblink
超链接hlWhat = e.Item.FindControl(hlWhat)作为超链接;
hlWhat.NavigateUrl = RESOLVEURL(〜/图片/+ sFile);
hlWhat.ToolTip = System.IO.Path.GetFileNameWithoutExtension(sFile);
hlWhat.Attributes [相对] =imagebox-BW 图片oImg = e.Item.FindControl(imgTheImage)的图像;
oImg.ImageUrl = RESOLVEURL(〜/ createthumb.ashx区= /图片/?+ sFile +&放大器; XMAX = 100安培; YMAX = 100);
} }
答:
我的更新页面加载
保护无效的Page_Load(对象发件人,EventArgs的发送)
{
如果(!的IsPostBack)
{
字符串sBasePath = System.Web.HttpContext.Current.Request.ServerVariables [APPL_PHYSICAL_PATH];
如果(sBasePath.EndsWith(\\\\))
sBasePath = sBasePath.Substring(0,sBasePath.Length-1); sBasePath = sBasePath +\\\\+图片; System.Collections.Generic.List<串GT; oList =新System.Collections.Generic.List<串GT;(); 字符串[] =扩展{* .JPG,*巴纽}; 清单<串GT;文件=新的List<串GT;(); 的foreach(在扩展字符串过滤器)
{
files.AddRange(System.IO.Directory.GetFiles(sBasePath,过滤器));
oList.Add(System.IO.Path.GetFileName(过滤器));
}
repImages.DataSource = oList;
repImages.DataBind();
}
什么格式,你要显示的图像的名字呢?如果你知道你可以构造一个过滤器列出目录的内容时使用:
的String []文件= Directory.GetFiles(文件夹,* 1.JPG);
将列出在1
结束所有JPG文件编辑:
而不是具有:
的foreach(字符串s在System.IO.Directory.GetFiles(sBasePath,*。*))
{
//我们可以做,例如一些过滤只增加.jpg或东西
oList.Add(System.IO.Path.GetFileName(S));
}
你必须:
的String []文件= System.IO.Directory.GetFiles(sBasePath,* .JPG)
的foreach(在文件中字符串s)
{
oList.Add(System.IO.Path.GetFileName(S));
}
编辑2:
我已经做了快速搜索,它看起来像获取文件不会采取多个扩展名,所以你必须寻找各类型的扩展分开:
的String [] =扩展{* .JPG,*巴纽};清单<串GT;文件=新的List<串GT;();
的foreach(在扩展字符串过滤器)
{
files.AddRange(System.IO.Directory.GetFiles(路径,过滤器));
}
的foreach(在文件中字符串s)
{
oList.Add(System.IO.Path.GetFileName(S));
}
I have a Repeater that takes all my images in a folder and display it. But what code changes must I make to only allow lets say Image1.jpg and Image2.jpg to be displayed in my repeater. I don"t want the repeater to display ALL the images in my folder.
My Repeater
<asp:Repeater ID="repImages" runat="server" OnItemDataBound="repImages_ItemDataBound">
<HeaderTemplate><p></HeaderTemplate>
<ItemTemplate>
<asp:HyperLink ID="hlWhat" runat="server" rel="imagebox-bw">
<asp:Image ID="imgTheImage" runat="server" />
</asp:HyperLink>
</ItemTemplate>
<FooterTemplate></p></FooterTemplate>
</asp:Repeater>
My Code behind - PAGE LOAD
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
string sBasePath = System.Web.HttpContext.Current.Request.ServerVariables["APPL_PHYSICAL_PATH"];
if ( sBasePath.EndsWith("\\"))
sBasePath = sBasePath.Substring(0,sBasePath.Length-1);
sBasePath = sBasePath + "\\" + "pics";
System.Collections.Generic.List<string> oList = new System.Collections.Generic.List<string>();
foreach (string s in System.IO.Directory.GetFiles(sBasePath, "*.*"))
{
//We could do some filtering for example only adding .jpg or something
oList.Add( System.IO.Path.GetFileName( s ));
}
repImages.DataSource = oList;
repImages.DataBind();
}
}
My Code behind - Repeater's ItemDataBound event code
protected void repImages_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.AlternatingItem ||
e.Item.ItemType == ListItemType.Item)
{
string sFile = e.Item.DataItem as string;
//Create the thumblink
HyperLink hlWhat = e.Item.FindControl("hlWhat") as HyperLink;
hlWhat.NavigateUrl = ResolveUrl("~/pics/" + sFile );
hlWhat.ToolTip = System.IO.Path.GetFileNameWithoutExtension(sFile);
hlWhat.Attributes["rel"] = "imagebox-bw";
Image oImg = e.Item.FindControl("imgTheImage") as Image;
oImg.ImageUrl = ResolveUrl("~/createthumb.ashx?gu=/pics/" + sFile + "&xmax=100&ymax=100" );
}
}
ANSWER:
My updated Page Load
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
string sBasePath = System.Web.HttpContext.Current.Request.ServerVariables["APPL_PHYSICAL_PATH"];
if ( sBasePath.EndsWith("\\"))
sBasePath = sBasePath.Substring(0,sBasePath.Length-1);
sBasePath = sBasePath + "\\" + "pics";
System.Collections.Generic.List<string> oList = new System.Collections.Generic.List<string>();
string[] extensions = { "*.jpg", "*.png" };
List<string> files = new List<string>();
foreach (string filter in extensions)
{
files.AddRange(System.IO.Directory.GetFiles(sBasePath, filter));
oList.Add(System.IO.Path.GetFileName(filter));
}
repImages.DataSource = oList;
repImages.DataBind();
}
What format are the image names that you want to display? If you know that you can construct a filter to use when listing the contents of the directory:
string[] files = Directory.GetFiles(folder, "*1.jpg");
Will list all the jpg files that end in "1"
EDIT:
Instead of having:
foreach (string s in System.IO.Directory.GetFiles(sBasePath, "*.*"))
{
//We could do some filtering for example only adding .jpg or something
oList.Add( System.IO.Path.GetFileName( s ));
}
You'd have:
string[] files = System.IO.Directory.GetFiles(sBasePath, "*.jpg")
foreach (string s in files)
{
oList.Add( System.IO.Path.GetFileName( s ));
}
EDIT 2:
I've done a quick search and it looks like Get Files won't take multiple extensions, so you'll have to search for each type of extension separately:
string[] extensions = {"*.jpg" , "*.png" };
List<string> files = new List<string>();
foreach(string filter in extensions)
{
files.AddRange(System.IO.Directory.GetFiles(path, filter));
}
foreach (string s in files)
{
oList.Add( System.IO.Path.GetFileName( s ));
}
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