Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control
I am getting the following error
Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.
but all I am trying to do is inside a ASP.NET REPEATER Control
<% if ( Eval("Message").ToString() == HttpContext.Current.Profile.UserName) %>
<% { %>
<asp:ImageButton runat="ser开发者_如何学JAVAver" etc.... />
<% } %>
The syntax is
<%# Eval("...") %>
You could do something like
<asp:ImageButton Visible='<%# ShowImg(Eval(Container.DataItem,"Message")) %>' />
and in your codebehind:
boolean ShowImg(string msg)
{
return (msg == HttpContext.Current.Profile.UserName);
}
An alternative is this:
<asp:ImageButton runat="server" Visible='<%# Eval("Message").ToString() == HttpContext.Current.Profile.UserName %>' />
Then there is no need for code behind.
Its too late but i would like to answer it in my way, what i used to achieve it:
<%# Eval("Message").toString()== HttpContext.Current.Profile.UserName)?"<asp:ImageButton runat="server" etc.... />" :""%>
Now this will only show image button if Message is equal to username.
This might help any one else in same situation.
In my situation i needed to check null and empty string...so i implemented like this below:
<%# Eval("DateString")!= null && Eval("DateString")!= ""? "<span class='date'>"+Eval("DateString") + "</span>":"" %>
Thanks
Another way to implement it:
public string nonImage() {
string imgTag = "", Article_OwnerID = "", Article_ID = "", Article_OwnerType = "", imgSrc = "";
DataTable DtArticles = SE_Article.GetArticlesList(UserID, UserID, ProfileType, CounterOfPage, CountPerPage, (short) SE_Action.OwnerType.user, SE_Security.CheckInjection(TxtSearch.Text.Trim()), CategoryID, "all_articles", DrpOrderBy.SelectedValue, DrpSort.SelectedValue);
if (DtArticles != null && DtArticles.Rows.Count > 0) {
Article_OwnerID = DtArticles.Rows[0]["Article_OwnerID"].ToString();
Article_ID = DtArticles.Rows[0]["Article_ID"].ToString();
Article_OwnerType = DtArticles.Rows[0]["Article_OwnerType"].ToString();
}
if (SE_Article.GetArticleCover(Convert.ToInt32(Article_OwnerID), Convert.ToInt32(Article_ID), Convert.ToInt16(Article_OwnerType)) != System.Configuration.ConfigurationManager.AppSettings["NoPhotoArticleThumb"]) {
imgSrc = SE_Article.GetArticleCover(Convert.ToInt32(Article_OwnerID), Convert.ToInt32(Article_ID), Convert.ToInt16(Article_OwnerType));
imgTag = "<img class='img_article_cover' src='" + imgSrc + "' alt='مقاله" + Article_ID + "' />";
}
return imgTag;
}
<% nonImage(); %>
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