我正在使用visual studio制作网络表单
我在.aspx中有一个网格,我将使用c#
在后端页面中填充它这是.aspx
中的代码 <asp:GridView ID="gvusers" runat="server" AutoGenerateColumns="false">
<Columns>
<asp:BoundField DataField="ID" HeaderText="ID" />
<asp:BoundField DataField="First Name" HeaderText="First Name" />
<asp:BoundField DataField="Last Name" HeaderText="Last Name" />
<asp:BoundField DataField="Phone Number" HeaderText="Phone Number" />
</Columns>
</asp:GridView>
这是应该填充它的函数(aspx.cs):
void GridFill() {
using (MySqlConnection sqlCon = new MySqlConnection(connectionString))
{
sqlCon.Open();
MySqlDataAdapter sqlda = new MySqlDataAdapter("userviewall", sqlCon);
sqlda.SelectCommand.CommandType = CommandType.StoredProcedure;
DataTable dtbl = new DataTable();
sqlda.Fill(dtbl);
gvusers.DataSource = dtbl;
gvusers.DataBind();
}
我无法检测到此异常的来源,因此我可以修复它。
堆栈追踪:
[HttpException (0x80004005): لم يتم العثور على حقل أو خاصية بالاسم 'ID' في مصدر البيانات المحدد.]
System.Web.UI.WebControls.BoundField.TryGetSimplePropertyValue(Object dataItem, Object& data) +416
System.Web.UI.WebControls.BoundField.GetValue(Control controlContainer) +384
System.Web.UI.WebControls.BoundField.OnDataBindField(Object sender, EventArgs e) +147
System.Web.UI.Control.OnDataBinding(EventArgs e) +165
System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +215
System.Web.UI.Control.DataBind() +36
System.Web.UI.Control.DataBindChildren() +244
System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +225
System.Web.UI.Control.DataBind() +36
System.Web.UI.WebControls.GridView.CreateRow(Int32 rowIndex, Int32 dataSourceIndex, DataControlRowType rowType, DataControlRowState rowState, Boolean dataBind, Object dataItem, DataControlField[] fields, TableRowCollection rows, PagedDataSource pagedDataSource) +243
System.Web.UI.WebControls.GridView.CreateChildControls(IEnumerable dataSource, Boolean dataBinding) +7051
System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data) +117
System.Web.UI.WebControls.GridView.PerformDataBinding(IEnumerable data) +65
System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) +208
System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +131
System.Web.UI.WebControls.DataBoundControl.PerformSelect() +226
System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +140
System.Web.UI.WebControls.GridView.DataBind() +29
NoufsTask.Index.GridFill() in c:\Users\abdulaziz\Desktop\NoufsTask\NoufsTask\Index.aspx.cs:77
NoufsTask.Index.Page_Load(Object sender, EventArgs e) in c:\Users\abdulaziz\Desktop\NoufsTask\NoufsTask\Index.aspx.cs:22
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +159
System.Web.UI.Control.OnLoad(EventArgs e) +165
System.Web.UI.Control.LoadRecursive() +170
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3615
答案 0 :(得分:0)
我猜您正确的错误信息是:
在所选数据源
上找不到名称为“ID”的字段或属性
您没有在选择查询中选择ID
(userviewall
它应该是SQL查询),以便出现错误消息。只需在您的查询中选择ID
(哪些列需要在网格中绑定)。
重要: 不仅是ID提交,您应该将所有字段返回到网格视图中的数据绑定。您的选择查询应该类似于
select ID, FirsName, LastName,PhoneNumber from YourTableName // or try select * from YourTableName
此外,您应该在"FirstName"
DataFiled属性中为Data grid Bound Filed提供列名。 DataField
媒体资源不接受variable
space
。因此,您应该将datafield
属性设为DataField="FirstName"
,而不是DataField="First Name"
。
请查看此论坛site