Undo Deletion of a Record

[Swetaketu Majumder]

Hi,

I want to create an option to 'undo' a deletion from the grid. I saw in the documentation that I can easily delete record(s) using this.gridGroupingControl1.Table.Records.DeleteRecords(rec); But is there a way to 'undo' it?

Alternatively, is there a way to hide/unhide selected records from the grid grouping control?

Thanks,

Swetaketu

[Piruthiviraj Malaimelraj]

Hi Swetaketu, 

Thanks for your interest in Syncfusion products. 

We have analyzed your scenario and created the simple sample as per your requirement. In order to hide/unhide the records of grid, AddRange/Remove methods of RowHiddenEntries can be used. Please make use of the below code, 

 

Code example: 

void chk_hide_CheckStateChanged(object sender, EventArgs e) 

{ 

    GridRowHidden[] hiddenrows; 

    if (chk_hide.Checked) 

    { 

        int n = this.gridGroupingControl1.Table.SelectedRecords.Count; 

        int rowIndex; 

        hiddenrows = new GridRowHidden[n]; 

        for (int i = 0; i < n; i++) 

        { 

            rowIndex = this.gridGroupingControl1.Table.SelectedRecords[i].Record.GetRowIndex(); 

            hiddenrows[i] = new GridRowHidden(rowIndex); 

        } 

        //Hide the selected rows. 

        this.gridGroupingControl1.TableControl.Model.RowHiddenEntries.AddRange(hiddenrows); 

    } 

    else 

    { 

        //Unhide the selected rows. 

        while (this.gridGroupingControl1.TableControl.Model.RowHiddenEntries.Count > 0) 

        { 

            this.gridGroupingControl1.TableControl.Model.RowHiddenEntries.Remove(this.gridGroupingControl1.TableControl.Model.RowHiddenEntries[0]); 

        } 

    } 

} 

 

Sample link: 

http://www.syncfusion.com/downloads/support/directtrac/127530/ze/WorkSample-802443648  

Please refer the below KB for further references, 

https://www.syncfusion.com/kb/4181/how-to-hide-a-range-of-rows-and-columns-in-gridgroupingcontrol  

Regards, 

Piruthiviraj