如何将gridview的超链接字段的navigationUrl设置为类的属性? [英] how can i set navigateUrl of a hyperlinkfield of gridview to a class's propperty?

问题描述

我有一个类，当我定义它的对象时，我必须为其上载一个描述文件，并且描述路径另存为类中的一个属性.所以我想当此类对象加载到gridview中时，有一个列作为超链接，当我单击列中的文本时，它会下载该行的描述文件.

请帮助我
谢谢.

i have a class that when i define an object of it i have to upload a description file for it and the path of description save as a property in class. so i want when the objects of this class load in gridview i have a column as a hyperlink that when i click the text in column it download the description file for that row.

please help me
thank you.

推荐答案

您必须在gridview.rowdatabound事件中执行此操作，请参阅:

http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.rowdatabound.aspx [

You have to do that in gridview.rowdatabound event, refer this:

http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.rowdatabound.aspx[^]

我以这种方式更改了代码，当我的页面中有一个DropDownList时，我从中选择一个项目，将加载GridHomework的数据.

I changed my code in this way, i have a DropDownList in my page when i select an item from it, the GridHomework''s data is loaded.

 protected void dpdGroup_SelectedIndexChanged(object sender, EventArgs e)
    {
        int GroupId =Convert.ToInt32( dpdGroup.SelectedItem.Value);
        CourseGroup group = DB.CourseGroups.Where(g => g.Id == GroupId).First();
        IEnumerable<homework> lstHomework = group.GetHomework();
        GridHomework.DataSource = lstHomework;
        GridHomework.DataBind();

        foreach (GridViewRow gvRow in GridHomework.Rows)
        {
            int HwId = (int)GridHomework.DataKeys[gvRow.RowIndex].Value;
            Homework Hw = DB.Homeworks.Where(h => h.Id == HwId).FirstOrDefault();
            HyperLink link = new HyperLink();
            link =(HyperLink)gvRow.FindControl("HyperLink1");
            link.NavigateUrl = "http://" + Request.Url.Authority  + "/HomeWorkManagementSystem/Upload/" + Hw.DscripPath;
 
        }
    }

</homework>

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