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Gridview rowupdating e oldvalues

I need to use code similar to below on the _Row Inserting event to locate the control and later access it's value.

I think this is because I am not using the conventional edit form, but a edit form template containing a custom user defined web control making use of ASPx controls.

In the Row Updating event the New Values, Old Values, and All Keyscollections are empty.

From this Use Net thread apparently the collections are only available when using the datasource controls or the objectdatasource.

The appropriate solution is storing the Data Source in the Session. Load Post Data to the required controls explicitly via the Dev Express.

Find Control("ctrl Call Details Field1"), User Control)ds Field Evals Submitted. Hello Daniel: These dictionaries are filled from editors in the Edit Form Template container if these editors are bound to corresponding fields via the Bind() method. New Values manually as follows:1) Handle the Row Updating event; 2) Find the required editor using the Find Edit Form Template Control() method and get its text or value via the corresponding property; 3) Set the corresponding item to the e. I need just a bit more help I have no issues finding the new Value via the technique you supplied. Visible Index inside of the _Row Validating event as this is where I would want to do my comparison of old to new values on an update. ASPx Data Validation Event Args) Handles gvw Field Evals_Submitted.Ok This is the settings: I use a Viewgrid with only itemtemplate colums for example. In Grid View Row Updating method, New Values collection is empty I am having a problem with the Grid View.I am using custom business objects and am loading a collection of them my self and binding the collection to the Grid VView as needed. I have a gridview with Auto Generate Edit Button="True" . Yes, it does not work for me, however as you see I am using dynamically formatted grids so maybe it will work for you - if you have your grid defined in the Let me know R e.newvalues still looking at the e.oldvalues collection in gridview rowupdating event I am using 2.0.You'll be able to ask any tech support questions, or chat with the community and help others.Keys、Old Values、New Values集合 Keys字典中一般存放的是数据源中的主键字段的key和value的对应值,如果主键由多个字段组成,那么Keys为每个键字段添加其字段名称和值。Old Values中存放的是要更新的行的字段名和原始值,每个字段为其中的一项。New Values中存放的是要更新的行的字段名和修改后的值,每个字段为其中的一项。注意,主键字段只存放于keys集合中。 这三个集合中的每一项都是Dictionary Entry类型的对象,我们可以用Dictionary Entry. Here is some relevant code - this is the Grid in - nothing specified so if any changes occur in the underlaying DB no aspx changes will be required (the idea that is being tested) That should give you back a valid Values collection. We are working on developing a methodology to port our old but good VB6 App to ASP and I am on a learning curve here so I am sure I have missed something (hopefully! This is just exploration for now so I can develop all the tools for the job at hand.To get the desired result, perform the following steps: 1) Handle the ASPx Grid View. Enable Callbacks property is set to "true" Post Data is applied automatically before required events. I guess it is because the Html Edit Form Created code initializes the editform controls with the old values from the gridview. If your scenario is different, please feel free to modify my sample to illustrate your approach. Please refer to the Dev Website Terms of Use for more information.

555 comments

  1. How and Where do I populate e. OldValues/e. NewValues. please use e. Cancel property of the RowUpdating event. My e. OldValues and e. NewValues contain NULL.

  2. GridView RowUpdating has old values. the e. OldValues and e. NewValues are both empty. Using the RowUpdating event in GridView without an SQL Update command.

  3. In GridView RowUpdating event, e. NewValues and e. OldValues are returned as null. Can you please help me out?

  4. Gridview的Keys、OldValues、NewValues集合_程序员600_新浪博客,程序员600,

  5. GridView RowUpdating function need OldValues, please help. Framework Forums on Bytes.

  6. I am using a GridView to display a dataset with no binding to an SQLdatasource. There is a known issue with that. The e. NewValues collection coming. 474967

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