电脑故障

位置:IT落伍者 >> 电脑故障 >> 浏览文章

高亮CheckBoxList选中的项目


发布日期:2019/3/29
 
先看看效果

准备数据

标准颜色图片从office Word的标准颜色窗口取出来并用进制把图片命名

图片尺寸X Pixel

aspx:

<asp:CheckBoxList ID=CheckBoxListColour runat=server RepeatColumns= RepeatDirection=Horizontal

OnDataBound=CheckBoxListColour_DataBound OnSelectedIndexChanged=CheckBoxListColour_SelectedIndexChanged

AutoPostBack=true>

</asp:CheckBoxList>

从上面的数据下载并放入专案中然后读出所有图片文件

View Code

private List<string> ImageNames

{

get

{

List<string> o = new List<string>()

DirectoryInfo di = new DirectoryInfo(ServerMapPath (~/Colours))

FileInfo[] fiArray = diGetFiles()

for (int i = ; i < fiArrayLength; i++)

{

oAdd(fiArray[i]Name)

}

return o;

}

}

绑定数据至CheckBoxList控件

View Code

protected void Page_Load(object sender EventArgs e)

{

if (!IsPostBack)

{

Data_Binding()

}

}

private void Data_Binding()

{

thisCheckBoxListColourDataSource = ImageNamesSelect(c => new { value = c })ToList()

thisCheckBoxListColourDataTextField = value;

thisCheckBoxListColourDataBind()

}

CheckBoxList控件的OnDataBound=CheckBoxListColour_DataBound事件

View Code

protected void CheckBoxListColour_DataBound(object sender EventArgs e)

{

var cbl = sender as CheckBoxList;

foreach (ListItem li in cblItems)

{

liText = stringFormat(<img src=Colours/{} /> liValue)

}

}

CheckBoxList控件的OnSelectedIndexChanged=CheckBoxListColour_SelectedIndexChanged事件

View Code

protected void CheckBoxListColour_SelectedIndexChanged(object sender EventArgs e)

{

var cbl = sender as CheckBoxList;

foreach (ListItem li in cblItems)

{

if (liSelected)

{

liAttributesAdd(style backgroundcolor: red;

}

}

}

上一篇:实现动态代理的介绍和使用

下一篇:使用silverlight中的Storyboard实现动画效果