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我在我的页面上有一个GridView,我想将数据绑定到数据,并在显示GridView之前进行一些排序,但没有显示任何内容。以下是我的代码:GridView即使在数据绑定后也不会显示
Dim dt As New DataTable
Dim dr As DataRow
' define the table's schema
dt.Columns.Add(New DataColumn("PP", GetType(String)))
dt.Columns.Add(New DataColumn("-", GetType(String)))
dt.Columns.Add(New DataColumn("Distance", GetType(String)))
Dim i As Integer = 0
' Now Create a loop that Add data into datagridview and sort by shortest distance
For Each r As System.Guid In arrid
dr = dt.NewRow()
dr("PP") = ResolveUrl(arrpic(i))
dr("-") = Arrnames(i).ToString & " (" & arrage(i) & ")" & vbCrLf & arrgender(i) & " from " & arrlocation(i) & vbCrLf & arrcomments(i)
dr("Distance") = arrdistance(i)
i = +1
Next
GridView1.DataSource = dt.DataSet
GridView1.DataBind()
'SortDirection data by shortest distance
'GridView1.Sort("Distance", SortDirection.Ascending)
简单的事情是设置断点并检查数据表或数据集是否为空... – 2014-09-06 19:21:12
'GridView1.DataSource = dt' – OneFineDay 2014-09-06 19:25:19
@Ganesh_Devlekar。我试图用这一行来计算表格:MsgBox(dt.DataSet.Tables.Count),但我没有将对象引用设置为对象消息的实例,表明没有表格存在。我不知道为什么? – kilojoules88 2014-09-06 19:44:18