1
Gridview
正确填充返回数据时,但是ShowHeaderWhenEmpty
,EmptyDataText
,并且EmptyDataTemplate
都不起作用,即使没有记录返回。我已经阅读了关于CSSFriendly的其他解决方案以及CSSFriendly禁用控件的一些冲突,但是这似乎没有解决问题。ShowHeaderWhenEmpty,EmptyDataText和EmptyDataTemplate不是在GridView的工作
这里是我的ASP gridview
<asp:GridView runat="server" class="table table-striped table-hover" ID="gvPendingRequestsEP" GridLines="None" AutoGenerateColumns="false">
<Columns>
<asp:BoundField DataField="submitted_by" HeaderText="submitted by" />
<asp:BoundField DataField="date_submitted" HeaderText="date submitted" />
<asp:BoundField DataField="card_number" HeaderText="Card Number" />
<asp:BoundField DataField="beginning_date" HeaderText="Date" />
<asp:BoundField DataField="beginning_time" HeaderText="time" />
<asp:BoundField DataField="total_time" HeaderText="hours" />
<asp:BoundField DataField="in_place_rank" HeaderText="Time/ Pay" />
<asp:BoundField DataField="status_id" HeaderText="Status" />
<asp:TemplateField>
<HeaderTemplate>
edit
</HeaderTemplate>
<ItemTemplate>
<a href="EPRequest.aspx?id=<%#Eval("card_number") %>">edit</a>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
这里是我的代码隐藏
protected void PopulateCardManagers(object sender, EventArgs e)
{
string connstring = ConfigurationManager.ConnectionStrings["TimeHubDBCS"].ConnectionString;
using (SqlConnection conn = new SqlConnection(connstring))
{
SqlCommand cmdFillEP = new SqlCommand();
cmdFillEP = new SqlCommand("spSelectPendingRequestsEP", conn);
cmdFillEP.CommandType = System.Data.CommandType.StoredProcedure;
cmdFillEP.Parameters.Add("@UserId", SqlDbType.VarChar).Value = lblUserLoggedIn.Text;
DataSet dsRequests = new DataSet();
DataTable dtEPCards;
dsRequests.Tables.Add("dtEPCards");
dtEPCards = dsRequests.Tables[0];
SqlDataAdapter daPendingRequestsEP = new SqlDataAdapter();
daPendingRequestsEP.SelectCommand = cmdFillEP;
conn.Open();
try
{
daPendingRequestsEP.Fill(dtEPCards);
gvPendingRequestsEP.DataSource = dtEPCards;
gvPendingRequestsEP.DataBind();
}
catch (Exception ex)
{
PopupTitle = "error populating EP Card Manager: ";
message = ex.Message;
ClientScript.RegisterStartupScript(this.GetType(), "Popup", "ShowPopup('" + message + ex.Message + "');", true);
}
}
}
在此先感谢
您确定没有发生异常吗?尝试在异常块中执行Response.Write,因为它可能会禁止显示空模板。 – Abbath
当您设置ShowHeaderWhenEmpty并且没有显示任何内容时,即使您的代码将您的网格绑定到数据源,也可能意味着您的数据源为空。你可以通过故意将一个空的数据表加载到你的网格来避免这种情况 – JustLearning
@CosmosBanda,看起来像是这个问题。我添加了一个if/else块来测试datatable是否为null,如果是的话,绑定一个空的datatable到gridview。如果你想在下面添加它,我会给你答案,否则我只会写和回答自己。谢谢! – StateofDK