Events when select all or deselect all

[Adriana Selena Tito Ilasaca]

When using Checkbox selection  <GridSelectionSettings Type="SelectionType.Multiple" /> Is there an event when all the rows are selected or deselected? in Grid and TreeGrid component?

[Rahul Narayanasamy]

Hi Adriana, 

 

Greetings from Syncfusion. 

 

For Grid: 

Query: Events when select all or deselect all - While using Checkbox selection, Is there an event when all the rows are selected or deselected? in Grid component?  

 

We have validated your query and you can achieve your requirement by using RowSelected and RowDeselected event of the Grid. The RowSelected event will be triggered while selecting the row using CheckAll and the RowDeselected event will be triggered while deselecting the records. In this event, you can get the corresponding Selected records using GetSelectedRecords() method of the Grid.  

 

Reference: 

https://blazor.syncfusion.com/documentation/datagrid/events/#rowselected 

https://blazor.syncfusion.com/documentation/datagrid/events/#rowdeselected 

https://help.syncfusion.com/cr/blazor/Syncfusion.Blazor.Grids.SfGrid-1.html#Syncfusion_Blazor_Grids_SfGrid_1_GetSelectedRecords 

 

Please let us know if you have any concerns. 

 

For TreeGrid: 

Query#:- While using Checkbox selection, Is there an event when all the rows are selected or deselected? in TreeGrid component?  

  

While Checkbox selection, on performing Select/Deselect All rows RowSelected and RowDeselected event will get trigger. In this event, you can get the SelectedIndexes usingGetSelectedRowIndexes and corresponding Selected records using GetSelectedRecords() method of the TreeGrid.  

 

Refer to the API Link:-  

https://blazor.syncfusion.com/documentation/treegrid/events/#rowselected  

https://blazor.syncfusion.com/documentation/treegrid/events/#rowdeselected  

https://help.syncfusion.com/cr/blazor/Syncfusion.Blazor.TreeGrid.SfTreeGrid-1.html#Syncfusion_Blazor_TreeGrid_SfTreeGrid_1_GetSelectedRecords  

https://help.syncfusion.com/cr/blazor/Syncfusion.Blazor.TreeGrid.SfTreeGrid-1.html#Syncfusion_Blazor_TreeGrid_SfTreeGrid_1_GetSelectedRowIndexes  

 

Please get back to us if you need any further assistance on it.  

 

Regards, 

Rahul 

 

[Adriana Selena Tito Ilasaca]

Hi there, 

Yes, it is working but the same event is being triggered when I select another row or other rows. Is there a way to know that the header checkbox(select all deselect all) is the one that is being checked? 
Also with  AutoCheckHierarchy set to true the RowSelected event is not being triggered is there another one that is being triggered?

[Rahul Narayanasamy]

Hi Adriana, 

Thanks for the update. 

Query: Yes, it is working but the same event is being triggered when I select another row or other rows. Is there a way to know that the header checkbox(select all deselect all) is the one that is being checked? 

We have validated your query and you want to know that whether the header checkbox is clicked or not while selecting all the rows using CheckAll(HeaderCheckbox). You can check this requirement by using IsHeaderCheckBoxClicked property in RowSelected and RowDeselected event of the Grid.  

While selecting all the rows using header checkbox, then this property(IsHeaderCheckBoxClicked) value is true. From this property, you can differentiate whether the header checkbox click or not. Find the below screenshot for your reference. 

[When select all rows using Header Checkbox] 

 

[When selecting a single row] 

 

Please let us know if you have any concerns. 

Regards, 

Rahul