GridView |下拉列表未填充
GridView |下拉列表未填充
提问于 2014-07-15 04:30:03
当在某些行上单击“更新”时，FooterTemplate中的下拉列表变得不填充。这是填充它们时的页面加载事件：
protected void Page_Load(object sender, EventArgs e)
{
DropDownList ddlImages_new = ((DropDownList)gvAdminArticleAdd.FooterRow.FindControl("ddlImages_new"));
ddlImages_new.DataSource = GetPdfs();
ddlImages_new.DataBind();
DropDownList ddl_invNamesNew = ((DropDownList)gvAdminArticleAdd.FooterRow.FindControl("ddl_invNamesNew"));
ddl_invNamesNew.DataSource = GetInvestigatorNames();
ddl_invNamesNew.DataBind();
}如果我单击某一行上的更新linkButton，则下拉列表中的数据将消失，即使尝试调用page load on cancel事件也不起作用。
protected void gvAdminArticleAdd_CancelEditEventHandler(object sender, GridViewCancelEditEventArgs e)
{
Page_Load(sender, e);
}回答 1
Stack Overflow用户
发布于 2014-07-15 07:22:29
仅当页面未回发时才绑定控件：
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
DropDownList ddlImages_new = ((DropDownList)gvAdminArticleAdd.FooterRow.FindControl("ddlImages_new"));
ddlImages_new.DataSource = GetPdfs();
ddlImages_new.DataBind();
DropDownList ddl_invNamesNew = ((DropDownList)gvAdminArticleAdd.FooterRow.FindControl("ddl_invNamesNew"));
ddl_invNamesNew.DataSource = GetInvestigatorNames();
ddl_invNamesNew.DataBind();
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/24745418
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