我在ASPX，.net 4.5中使用RadGrid。数据出现并在我的网格中显示，但我无法更新，插入或删除记录。我尽可能地跟踪了样本版本：
http://demos.telerik.com/aspnet-ajax/grid/examples/data-editing/batch-editing/defaultcs.aspx
当我尝试修改网格中的数据时，点击“保存”，网格重新加载，数据不变。没有错误，只是没有更新。
最初我把网格包裹在ajax面板中，但是当这些问题发生时，我将其删除了。这没什么区别;虽然当我使用ajax面板时，经常点击“保存”图标时什么也没做。或似乎什么都不做。所以随着这种情况的消失，页面/网格会执行正常的回发，除非我的所有事件处理程序都没有被调用。调用Page_Load，但没有其他内容（例如RadGrid1_BatchEditCommand，RadGrid1_ItemUpdated）。似乎这些应该被调用。
ASPX代码：
<telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
<telerik:RadListBox runat="server" ID="SavedChangesList" Width="600px" Height="200px" Visible="false"></telerik:RadListBox>
<telerik:RadGrid ID="RadGrid1" GridLines="None" runat="server" AllowAutomaticDeletes="True"
AllowAutomaticInserts="True" PageSize="10" Skin="Default" OnItemDeleted="RadGrid1_ItemDeleted" OnItemInserted="RadGrid1_ItemInserted"
OnItemUpdated="RadGrid1_ItemUpdated" OnPreRender="RadGrid1_PreRender" AllowAutomaticUpdates="True" AllowPaging="True"
AutoGenerateColumns="False" Width="1000px" OnBatchEditCommand="RadGrid1_BatchEditCommand" DataSourceID="sqlContractMatrix">
<MasterTableView CommandItemDisplay="TopAndBottom" DataKeyNames="ID" DataSourceID="sqlContractMatrix" HorizontalAlign="NotSet" EditMode="Batch" AutoGenerateColumns="False">
<BatchEditingSettings EditType="Cell" />
<SortExpressions>
<telerik:GridSortExpression FieldName="SiteID,ProductID" SortOrder="Descending" />
</SortExpressions>
<Columns>
<telerik:GridTemplateColumn HeaderText="Site" HeaderStyle-Width="150px" UniqueName="SiteID" DataField="SiteID">
<ItemTemplate>
<%# Eval("SiteName") %>
</ItemTemplate>
<EditItemTemplate>
<telerik:RadDropDownList runat="server" ID="ddlSites" AppendDataBoundItems="true" DataValueField="SiteID" DataTextField="SiteName" DataSourceID="sqlSites">
</telerik:RadDropDownList>
</EditItemTemplate>
</telerik:GridTemplateColumn>
<telerik:GridTemplateColumn HeaderText="Product" HeaderStyle-Width="150px" UniqueName="ProductID" DataField="ProductID">
<ItemTemplate>
<%# Eval("ProductName") %>
</ItemTemplate>
<EditItemTemplate>
<telerik:RadDropDownList runat="server" ID="ddlProducts" DropDownWidth="250" DropDownHeight="400" DefaultMessage="Product" AppendDataBoundItems="true" DataValueField="ProductID" DataTextField="ProductName" DataSourceID="sqlProducts">
</telerik:RadDropDownList>
</EditItemTemplate>
</telerik:GridTemplateColumn>
<telerik:GridAttachmentColumn DataSourceID="sqlContractMatrix" MaxFileSize="1048576" HeaderStyle-Width="250px"
EditFormHeaderTextFormat="Upload File:" HeaderText="HTML Template" AttachmentDataField="BinaryData"
AttachmentKeyFields="ID" FileNameTextField="TemplateFileBinary" DataTextField="TemplateFileBinary"
UniqueName="TemplateFileBinary">
</telerik:GridAttachmentColumn>
<%--
<telerik:GridBoundColumn DataField="TemplateFile" HeaderStyle-Width="200px" HeaderText="Template"
SortExpression="TemplateFile" UniqueName="TemplateFile">
</telerik:GridBoundColumn>
--%>
<telerik:GridBoundColumn DataField="PDFName" HeaderStyle-Width="200px" HeaderText="PDF Name"
SortExpression="PDFName" UniqueName="PDFName">
</telerik:GridBoundColumn>
<telerik:GridButtonColumn ConfirmText="Delete this record?" ConfirmDialogType="RadWindow"
ConfirmTitle="Delete" HeaderText="Delete" HeaderStyle-Width="50px" ButtonType="ImageButton"
CommandName="Delete" Text="Delete" UniqueName="DeleteColumn">
</telerik:GridButtonColumn>
</Columns>
</MasterTableView>
</telerik:RadGrid>
<asp:SqlDataSource ID="sqlContractMatrix" runat="server" ConnectionString="<%$ ConnectionStrings:FitTrack %>"
DeleteCommand="DELETE FROM ContractMatrix WHERE ID = @ID"
InsertCommand="INSERT INTO ContractMatrix (SiteID, ProductID, TemplateFile, PDFName, LastModifiedDate, LastModifiedByID) VALUES (@SiteID, @ProductID, @TemplateFile, @PDFName, @LastModifiedDate, @LastModifiedByID)"
UpdateCommand="UPDATE ContractMatrix SET SiteID = @SiteID, ProductID = @ProductID, TemplateFile = @TemplateFile, PDFName = @PDFName, LastModifiedDate = GETDATE(), LastModifiedByID = @LastModifiedByID WHERE ID = @ID">
<DeleteParameters>
<asp:Parameter Name="ID" Type="Int32"></asp:Parameter>
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="SiteID" Type="Int32"></asp:Parameter>
<asp:Parameter Name="ProductID" Type="Int32"></asp:Parameter>
<asp:Parameter Name="TemplateFile" Type="String"></asp:Parameter>
<asp:Parameter Name="PDFName" Type="String"></asp:Parameter>
</InsertParameters>
<UpdateParameters>
<asp:Parameter Name="SiteID" Type="Int32"></asp:Parameter>
<asp:Parameter Name="ProductID" Type="Int32"></asp:Parameter>
<asp:Parameter Name="TemplateFile" Type="String"></asp:Parameter>
<asp:Parameter Name="PDFName" Type="String"></asp:Parameter>
<asp:Parameter Name="ID" Type="Int32"></asp:Parameter>
</UpdateParameters>
</asp:SqlDataSource>
<!-- SQL data sources for various lookup tables -->
<asp:SqlDataSource ID="sqlSites" runat="server" ConnectionString="<%$ ConnectionStrings:FitTrack %>" ProviderName="System.Data.SqlClient" SelectCommand="SELECT SiteID, SiteName FROM gym.Site ORDER BY SiteID"></asp:SqlDataSource>
<asp:SqlDataSource ID="sqlProducts" runat="server" ConnectionString="<%$ ConnectionStrings:FitTrack %>" ProviderName="System.Data.SqlClient"></asp:SqlDataSource>
C＃代码：
protected void RadGrid1_BatchEditCommand(object sender, Telerik.Web.UI.GridBatchEditingEventArgs e)
{
SavedChangesList.Visible = true;
}
protected void RadGrid1_ItemUpdated(object source, Telerik.Web.UI.GridUpdatedEventArgs e)
{
GridEditableItem item = (GridEditableItem)e.Item;
string id = item.GetDataKeyValue("ID").ToString();
if (e.Exception != null)
{
e.KeepInEditMode = true;
e.ExceptionHandled = true;
NotifyUser("Record with ID " + id + " cannot be updated. Reason: " + e.Exception.Message);
}
else
{
NotifyUser("Record with ID " + id + " is updated!");
}
}
protected void RadGrid1_ItemInserted(object source, GridInsertedEventArgs e)
{
if (e.Exception != null)
{
e.ExceptionHandled = true;
NotifyUser("Product cannot be inserted. Reason: " + e.Exception.Message);
}
else
{
NotifyUser("New product is inserted!");
}
}
protected void RadGrid1_ItemDeleted(object source, GridDeletedEventArgs e)
{
GridDataItem dataItem = (GridDataItem)e.Item;
string id = dataItem.GetDataKeyValue("ID").ToString();
if (e.Exception != null)
{
e.ExceptionHandled = true;
NotifyUser("Product with ID " + id + " cannot be deleted. Reason: " + e.Exception.Message);
}
else
{
NotifyUser("Product with ID " + id + " is deleted!");
}
}
请帮忙。为什么没有发生数据更新？为什么没有调用代码隐藏中的telerik事件/方法？只有Page_Load（）正在执行，其他都没有。
答案 0 :(得分：0)
对我而言，这取决于尝试使用OnItemUpdated而不是OnUpdateCommand。
RadGrid的ItemDeleted，ItemUpdated和ItemInserted事件仅与直接绑定的ADO类型DataSource结合使用。我使用自己的DAL，所以这3个事件都没有被解雇。
所以解决方法是连接事件OnUpdateCommand和OnDeleteCommand。事件处理程序看起来像这样。
protected void radGrid_UpdateCommand(object sender, GridCommandEventArgs e)
{
var gridDataItem = ((GridDataItem)e.Item);
var table = gridDataItem.OwnerTableView;
var keyValues = table.DataKeyValues[gridDataItem.ItemIndex];
// Get key value.
var id = keyValues["id"];
// Get other values
var foo = ((TextBox)gridDataItem["foo"].Controls[0]).Text;
var bar = ((TextBox)gridDataItem["bar"].Controls[0]).Text;
myDAL.Update(id, foo, bar);
}