[英]Using entitydatasource with editable gridpanel
i am new at ext.net. 我是ext.net的新手。 i am trying to make an editable grid with using entitydatasource 我正在尝试使用EntityDataSource制作一个可编辑的网格
Here is code: 这是代码:
<asp:EntityDataSource ID="EntityDataSource1" runat="server"
AutoGenerateOrderByClause="True"
ConnectionString="name=Sample1Entities"
DefaultContainerName="Sample1Entities"
EnableDelete="True"
EnableFlattening="False"
EnableInsert="True"
EnableUpdate="True"
EntitySetName="Customer"
EntityTypeFilter="Customer"
OnUpdating="EntityDataSource1_OnUpdating"
>
<ext:GridPanel
runat="server"
ID="GridPanel1"
Height="570"
Title="Customers"
Frame="true">
<Store>
<ext:Store ID="Store1" runat="server" DataSourceID="EntityDataSource1" AutoSync="true"
IDMode="Client">
<Model>
<ext:Model ID="Model1" runat="server">
<Fields>
<ext:ModelField Name="CustomerId" Mapping="CustomerId" />
<ext:ModelField Name="Name" />
<ext:ModelField Name="Surname" />
</Fields>
</ext:Model>
</Model>
</ext:Store>
</Store>
<ColumnModel ID="ColumnModel1" runat="server">
<Columns>
<ext:Column ID="Column1" runat="server" DataIndex="CustomerId" Text="CustomerId" Width="150" />
<ext:Column ID="Column2" runat="server" DataIndex="Name" Text="Name" Width="150">
<Editor>
<ext:TextField runat="server" ></ext:TextField>
</Editor>
</ext:Column>
<ext:Column ID="Column3" runat="server" DataIndex="Surname" Text="Surname" Width="150" />
</Columns>
</ColumnModel>
<SelectionModel>
<ext:RowSelectionModel ID="RowSelectionModel1" runat="server" Mode="Multi" />
</SelectionModel>
<Plugins>
<ext:CellEditing ID="CellEditing1" runat="server" />
</Plugins>
</ext:GridPanel>
There is no problem with entity class. 实体类没有问题。 I generated it from db automaticly and tested. 我从db自动生成并进行了测试。 When i edit Name column it gives following error: 当我编辑名称列时,出现以下错误:
System.Exception: The key-value pairs that define an EntityKey cannot be null or empty.\r\n
Parameter name: record ---> System.ArgumentException: The key-value pairs that define an EntityKey cannot be null or empty.\r\n
Parameter name: record\r\n
at System.Data.EntityKey.CheckValue(String argumentName, String keyFieldName, Object value, PrimitiveType expectedType)\r\n
at System.Data.EntityKey.CheckKeyValues(EntitySet entitySet, IExtendedDataRecord record, String[]& keyNames, Object& singletonKeyValue, Object[]& compositeKeyValues)\r\n
at System.Data.EntityKey..ctor(EntitySet entitySet, IExtendedDataRecord record)\r\n at System.Data.Objects.ObjectStateManager.FixupKey(EntityEntry entry)\r\n at System.Data.Objects.EntityEntry.AcceptChanges()\r\n at System.Data.Objects.ObjectContext.AcceptAllChanges()\r\n at System.Web.UI.WebControls.EntityDataSourceView.ExecuteUpdate(IDictionary keys, IDictionary values, IDictionary oldValues)\r\n at System.Web.UI.DataSourceView.Update(IDictionary keys, IDictionary values, IDictionary oldValues, DataSourceViewOperationCallback callback)\r\n at Ext.Net.Store.MakeUpdates(IDataSource ds, JArray data) in C:\\Users\\Geoffrey McGill\\Documents\\Visual Studio 2010\\Projects\\Ext.NET\\v2\\Ext.Net\\Ext\\Data\\Store.cs:line 890\r\n at Ext.Net.Store.MakeChanges() in C:\\Users\\Geoffrey McGill\\Documents\\Visual Studio 2010\\Projects\\Ext.NET\\v2\\Ext.Net\\Ext\\Data\\Store.cs:line 829\r\n at Ext.Net.Store.DoSaving(String action, String jsonData, JToken parameters) in C:\\Users\\Geoffrey McGill\\Documents\\Visual Studio 2010\\Projects\\Ext.NET\\v2\\Ext.Net\\Ext\\Data\\Store.cs:line 793\r\n --- End of inner exception stack trace ---\r\n at Ext.Net.Store.DoSaving(String action, String jsonData, JToken parameters) in C:\\Users\\Geoffrey McGill\\Documents\\Visual Studio 2010\\Projects\\Ext.NET\\v2\\Ext.Net\\Ext\\Data\\Store.cs:line 806\r\n at Ext.Net.Store.RaiseAjaxPostBackEvent(String eventArgument) in C:\\Users\\Geoffrey McGill\\Documents\\Visual Studio 2010\\Projects\\Ext.NET\\v2\\Ext.Net\\Ext\\Data\\Store.cs:line 1131
When i edit gridpanel's cell store send following ajax request ; 当我编辑gridpanel的单元格存储时,发送以下ajax请求;
submitDirectEventConfig:{"config":{"serviceParams":"[{\"CustomerId\":\"3 \",\"Name\":\"e\",\"Surname\":\"soyad1 \",\"id\":null}]"}}
RowSelectionModel1:[{"RecordID":null,"RowIndex":2}]
__EVENTTARGET:ResourceManager1
__EVENTARGUMENT:Store1|postback|updat
e Ë
thanks 谢谢
Another step, discover "IdPropery" property of tag and assign it "CompanyId" value 下一步,发现标记的“ IdPropery”属性并为其分配“ CompanyId”值
<ext:Model ID="Model1" runat="server" IDPropery="CompanyId">
Then pass the previous exception. 然后传递上一个异常。 Now it gives this exception below; 现在,它给下面这个例外;
System.Exception: Error while setting property 'id': 'Object of type 'System.Int32' cannot be converted to type 'System.String'.'. ---> System.Web.UI.WebControls.EntityDataSourceValidationException: Error while setting property 'id': 'Object of type 'System.Int32' cannot be converted to type 'System.String'.'.\r\n
at System.Web.UI.WebControls.EntityDataSourceUtil.SetAllPropertiesWithVerification(EntityDataSourceWrapper entityWrapper, Dictionary`2 changedProperties, Boolean overwrite)\r\n
at System.Web.UI.WebControls.EntityDataSourceView.ExecuteUpdate(IDictionary keys, IDictionary values, IDictionary oldValues)\r\n
at
....
Is there any way to use string id field in Model? 有什么方法可以在Model中使用字符串ID字段吗?
Finaly i modified ext.net source code and error goes away. 最后,我修改了ext.net源代码,错误消失了。 In store.cs a changed the code below 在store.cs中,更改了以下代码
if (id.IsNotEmpty())
{
string idStr = token.Value<string>(id);
int idInt;
if (int.TryParse(idStr, out idInt) && 1==0) // disable this logic
{
keys[id] = idInt;
}
else
{
keys[id] = idStr;
}
}
I hope this solution helps to you. 希望此解决方案对您有所帮助。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.