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Moving sorted Nullable culumns!

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GridView
This is a migrated thread and some comments may be shown as answers.
Erik Sundström
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Erik Sundström asked on 23 Sep 2009, 09:54 AM
Hi,

When moving a sorted column bind to objects of nullable type (DateTime?, int? etc) i get an error. Is this a know bug?

Best regards
Erik

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Nikolay
Telerik team
answered on 24 Sep 2009, 02:15 PM
Hello Erik,

Thank you for contacting us.

This was not a known issue and I was able to reproduce it thanks to the information that you provided. Unfortunately, the issue is at the very base level of RadGridView, so I cannot provide you with any specific time frame when it will be addressed.

I am updating your Telerik points for the report. If you have additional questions, feel free to contact me.

All the best,
Nikolay
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Erik Sundström
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answered on 29 Sep 2009, 02:26 PM
Post this wo if you like:

void

 

dataGrid_ColumnIndexChanged(object sender, ColumnIndexChangedEventArgs e)

 

{

 

if (currentSortFieldList != null && currentNullableColumn != null && this.dataGrid.Columns[e.NewIndex] == currentNullableColumn)

 

{

 

// Apply the sorting again

 

 

foreach (GridSortField sortFiled in currentSortFieldList)

 

{

 

this.dataGrid.MasterGridViewTemplate.SortExpressions.Add(sortFiled);

 

}

}

}

 

GridViewDataColumn currentNullableColumn = null;

 

 

List<GridSortField> currentSortFieldList = null;

 

 

void dataGrid_ColumnIndexChanging(object sender, ColumnIndexChangingEventArgs e)

 

{

 

if (this.dataGrid.Columns[e.OldIndex].IsSorted){

 

 

// Enable to move sorted columns of nullable type

 

 

if (

 

 

this.dataGrid.Columns[e.OldIndex].DataType.IsGenericType

 

&&

this.dataGrid.Columns[e.OldIndex].DataType.GetGenericTypeDefinition() == typeof(Nullable<>)

 

)

{

 

// Save current data

 

currentNullableColumn =

this.dataGrid.Columns[e.OldIndex];

 

 

// Save current sorted fields

 

 

if (currentSortFieldList == null)

 

{

currentSortFieldList =

new List<GridSortField>();

 

}

 

else

 

{

currentSortFieldList.Clear();

}

 

foreach (GridSortField sortFiled in this.dataGrid.MasterGridViewTemplate.SortExpressions)

 

{

currentSortFieldList.Add(sortFiled);

}

 

// Remove sortexpressions as a work around to avoid known bug

 

 

this.dataGrid.MasterGridViewTemplate.SortExpressions.Clear();

 

}

}

}

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Erik Sundström
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answered on 29 Sep 2009, 02:27 PM
formattning not that nice but it works fine.

regards
Erik
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Nikolay
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Erik Sundström
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