Hi,
I am trying to edit the childgrid in the hierarchical grid, the row which I am editting I want to compare the oldvalues and new values in the RowEditEnded event. How do i achieve this.
I have 3 columns in the childgrid. but in the oldvalues i have only count = 1 or which is the first column.
When i tried e.OldValues["firstcolumn"] = this is giving me the result.
When i tried e..OldValues["SecondColumn"] = this is throwing keynot found exception. likewise for the 3rd column.
Please advice.
Thanks
I am trying to edit the childgrid in the hierarchical grid, the row which I am editting I want to compare the oldvalues and new values in the RowEditEnded event. How do i achieve this.
I have 3 columns in the childgrid. but in the oldvalues i have only count = 1 or which is the first column.
When i tried e.OldValues["firstcolumn"] = this is giving me the result.
When i tried e..OldValues["SecondColumn"] = this is throwing keynot found exception. likewise for the 3rd column.
Please advice.
Thanks
7 Answers, 1 is accepted
0
Hello David,
Greetings,
Maya
the Telerik team
You may get an old value by using the UniqeName of the corresponding column. For example:
XAML:
<
telerik:GridViewDataColumn
DataMemberBinding
=
"{Binding Name}"
/>
C#:
private void clubsGrid_RowEditEnded(object sender, GridViewRowEditEndedEventArgs e)
{
var oldName = e.OldValues["Name"];
}
Maya
the Telerik team
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0
Ravi
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Rank 1
answered on 26 Apr 2011, 03:18 PM
Thanks for the update.
I have 3 columns in the row. When i try to get the OLD value of the second or third column its throwing an exception , key not found in the collection.
Above is my second column, but i am not able to do as below
e.OldValues["Quantity"]
Please advice.
Thanks
I have 3 columns in the row. When i try to get the OLD value of the second or third column its throwing an exception , key not found in the collection.
<
telerikGridView:GridViewDataColumn
Width
=
"125"
>
<
telerikGridView:GridViewDataColumn.Header
>
<
TextBlock
Text
=
"Quantity"
/>
</
telerikGridView:GridViewDataColumn.Header
>
<
telerikGridView:GridViewDataColumn.CellTemplate
>
<
DataTemplate
>
<
TextBlock
Text
=
"{Binding Quantity}"
Tag
=
"{Binding}"
/>
</
DataTemplate
>
</
telerikGridView:GridViewDataColumn.CellTemplate
>
<
telerikGridView:GridViewDataColumn.CellEditTemplate
>
<
DataTemplate
>
<
TextBox
x:Name
=
"txtQuantity"
Text
=
"{Binding Quantity, Mode=TwoWay}"
></
TextBox
>
</
DataTemplate
>
</
telerikGridView:GridViewDataColumn.CellEditTemplate
>
</
telerikGridView:GridViewDataColumn
>
Above is my second column, but i am not able to do as below
e.OldValues["Quantity"]
Please advice.
Thanks
0
Ravi
Top achievements
Rank 1
answered on 26 Apr 2011, 03:34 PM
I understand by using the DataMemberBinding attribute the column is visible in the OldValues, which is great. but i dont want the filter to appear on the column when i appy DataMemberBinding.
Please advice.
Please advice.
0
Accepted
Hello David,
Thus you will be able to work with the OldValue, but still your column will not be filterable.
Greetings,
Maya
the Telerik team
The OldValues can be appropriately used unless CellEditTemplate/CellTemplate are defined for the columns. So, what I would recommend you is to set the DataMemberBinding, remove the templates defined and set the IsFilterable property to "False":
<
telerik:GridViewDataColumn
DataMemberBinding
=
"{Binding Name}"
IsFilterable
=
"False"
/>
Greetings,
Maya
the Telerik team
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Do you want to know when a feature you care about is added or when a bug fixed?
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0
Jelena
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answered on 23 Jul 2012, 03:08 PM
Hello,
What should we do if we have CellEditTemplate/CellTemplate? Is there a way to retrieve at least the name of the column(s) in which the change has occured?
Thanks,
Jelena
What should we do if we have CellEditTemplate/CellTemplate? Is there a way to retrieve at least the name of the column(s) in which the change has occured?
Thanks,
Jelena
0
Hi Jelena,
Maya
the Telerik team
You can find the corresponding cell (through ParentOfType<T> extension method) and get its Column property.
Maya
the Telerik team
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0
Jelena
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Rank 1
answered on 23 Jul 2012, 03:35 PM
Nice. Thank you!
Jelena
Jelena