<asp:GridView ID="GridViewNews" ShowHeader="False" BorderStyle="None"
BorderWidth="0px" Width="100%" AllowPaging="True" PageSize="50"
AutoGenerateColumns="False" DataSourceID="ObjectDataSourceNews"
DataKeyNames="NewsId" CssClass="icon" PagerStyle-CssClass="page" runat="server"
onrowcreated="GridViewNews_RowCreated" >
<PagerSettings Mode="NumericFirstLast" FirstPageText="首页" LastPageText="末页" PreviousPageText="上一页" NextPageText="下一页" />
<Columns>
<asp:TemplateField>
<ItemTemplate>
<dd><span><a href='NewsList.aspx?Id=<%# Eval("CategoryId") %>' title="" target="_blank">[<%# ShowCategory(Convert.ToInt32(Eval("CategoryId")))%>]</a> <a href='NewsDetails.aspx?Id=<%# Eval("NewsId") %>' class='<%#ShowNew(Convert.ToDateTime(Eval("UpdateDate"))) %>' title="" target="_blank"><%# Eval("Title") %></a></span><%# Convert.ToDateTime(Eval("UpdateDate")).ToString("yy-M-d HH:mm") %></dd>
<asp:Label ID="Label1" runat="server" Text="" ></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<PagerStyle CssClass="page"></PagerStyle>
</asp:GridView>
int Rowindex = 0;
protected void GridViewNews_RowCreated(object sender, GridViewRowEventArgs e)
{
Rowindex ++;
string valu = ((Label)e.Row.FindControl("Label1")).Text;
if (Rowindex == 5)
{
valu = "_____________";
Rowindex = 0;
}
}“/”应用程序中的服务器错误。
未将对象引用设置到对象的实例。
说明: 执行当前 Web 请求期间,出现未处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。异常详细信息: System.NullReferenceException: 未将对象引用设置到对象的实例。源错误:行 53: {
行 54: Rowindex ++;
行 55: string valu = ((Label)e.Row.FindControl("Label1")).Text;
行 56: if (Rowindex == 5)
行 57: {
各位大神们帮小弟看看吧
BorderWidth="0px" Width="100%" AllowPaging="True" PageSize="50"
AutoGenerateColumns="False" DataSourceID="ObjectDataSourceNews"
DataKeyNames="NewsId" CssClass="icon" PagerStyle-CssClass="page" runat="server"
onrowcreated="GridViewNews_RowCreated" >
<PagerSettings Mode="NumericFirstLast" FirstPageText="首页" LastPageText="末页" PreviousPageText="上一页" NextPageText="下一页" />
<Columns>
<asp:TemplateField>
<ItemTemplate>
<dd><span><a href='NewsList.aspx?Id=<%# Eval("CategoryId") %>' title="" target="_blank">[<%# ShowCategory(Convert.ToInt32(Eval("CategoryId")))%>]</a> <a href='NewsDetails.aspx?Id=<%# Eval("NewsId") %>' class='<%#ShowNew(Convert.ToDateTime(Eval("UpdateDate"))) %>' title="" target="_blank"><%# Eval("Title") %></a></span><%# Convert.ToDateTime(Eval("UpdateDate")).ToString("yy-M-d HH:mm") %></dd>
<asp:Label ID="Label1" runat="server" Text="" ></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<PagerStyle CssClass="page"></PagerStyle>
</asp:GridView>
int Rowindex = 0;
protected void GridViewNews_RowCreated(object sender, GridViewRowEventArgs e)
{
Rowindex ++;
string valu = ((Label)e.Row.FindControl("Label1")).Text;
if (Rowindex == 5)
{
valu = "_____________";
Rowindex = 0;
}
}“/”应用程序中的服务器错误。
未将对象引用设置到对象的实例。
说明: 执行当前 Web 请求期间,出现未处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。异常详细信息: System.NullReferenceException: 未将对象引用设置到对象的实例。源错误:行 53: {
行 54: Rowindex ++;
行 55: string valu = ((Label)e.Row.FindControl("Label1")).Text;
行 56: if (Rowindex == 5)
行 57: {
各位大神们帮小弟看看吧
Label lab = ((Label)e.Row.FindControl("Label1"));
if (Rowindex == 5)
{ lab.Text = "_____________";
Rowindex = 0;
}这样应该不会报这个System.NullReferenceException错误了
Label lab = ((Label)e.Row.FindControl("Label1"));
if(lab!=null)
{
if (Rowindex == 5)
{ lab.Text = "_____________";
Rowindex = 0;
}
}
/// <summary>
/// 设置列表分隔符
/// </summary>
/// <returns></returns>
public string setSeparator()
{
i++;
string strSep = string.Empty;
if (i % 5 == 0)
{
strSep = "<li><div class=\"line_n\"></div></li>";
}
return strSep;
}-------------------------------------------------------<ItemTemplate>
<li>
<div class="left">
<span class="gray01">·</span><a href="service_show_<%#Eval("ArticleID") %>.html"><%#Eval("Title") %></a></div>
<div class="right font_fam01 gray01">
[<%#Eval("AddTime","{0:yyyy-MM-dd}") %>]</div>
</li>
<%=setSeparator() %>
</ItemTemplate>