delete a row in the record

[harshini]

private void butDelete_Click(object sender,EventArgs e)
{
if (grdDisplayItems.Table.CurrentRecord != null)
{
if (grdDisplayItems.Table.Records.Count == 1)
{
grdDisplayItems.Table.Records[0].Delete();
}
else
{
this.grdDisplayItems.Table.CurrentRecord.Delete();
}
//this.grdDisplayItems.Table.Records[0].Delete();
}
}
The delete method deletes all records except for the record that iis left out.for e if we have 4 records it deletes 3 records succesfully but the last record is not deleted at all


if the grid has just one record then also the record is not getting deleted
I am getting an exception object refrence not set to an instanc eof an object

Stack trace:
StackTrace " at System.Data.DataView.GetRow(Int32 index)\r at System.Data.DataView.System.Collections.IList.RemoveAt(Int32 index)\r at Syncfusion.Grouping.Table.DeleteRecord(Record r)\r at Syncfusion.Grouping.Record.Delete()" string

[Christopher Issac Sunder K]

Hi Harshini,

Thank you for your interest in Syncfusion products.

To delete the records one – by – one, you can check whether the record count is greater than zero. Here is the code snippets which explains the deletion in GridGroupingControl.

        private void button1_Click(object sender, EventArgs e)
        {
            if (this.gridGroupingControl1.Table.CurrentRecord != null)
            {
                this.gridGroupingControl1.Table.CurrentRecord.Delete();
            }
            else
            {
                if (this.gridGroupingControl1.Table.Records.Count > 0) // check with this condition
                    this.gridGroupingControl1.Table.Records[0].Delete();
            }
        }

Please refer the following sample which illustrates the above.

http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=GGC_Deletion-1675744949.zip

Please let me know if you have any other concerns.

Regards,
Christo.

[harshini]

hi..

the problem here is when zeroth record is reached the table still has the value i.e

grdDisplayItems.Table.CurrentRecord != null condition is satisfied and
this.grdDisplayItems.Table.CurrentRecord.Delete(); is executed because of which whole application terminates and i get the exception.

[Rajadurai C]

Hi Harshini,

Thanks for your update.

The CurrentRecord will not be null when the focus is in the AddNewRecord row. Hence, you could handle the following modified condition instead.

if (this.gridGroupingControl1.Table.CurrentRecord != null && this.gridGroupingControl1.Table.CurrentRecord != this.gridGroupingControl1.Table.AddNewRecord)
{
  this.gridGroupingControl1.Table.CurrentRecord.Delete();
}

Please let us know if you have any further concerns.

Regards,
Rajadurai

[juan]

hi..

the problem here is when zeroth record is reached the table still has the value i.e

grdDisplayItems.Table.CurrentRecord != null condition is satisfied and
this.grdDisplayItems.Table.CurrentRecord.Delete(); is executed because of which whole application terminates and i get the exception.

hola soy un nuevo usuario

[Mohanraj Gunasekaran]

Hi juan, 

 

Thanks for using Syncfusion product. 

 

In order to delete the current record, you can also use the Records.Count property. Please refer to the below code example, 

 

Code example 

if (this.gridGroupingControl1.Table.CurrentRecord != null && this.gridGroupingControl1.Table.Records.Count > 0) 

{
    this.gridGroupingControl1.Table.CurrentRecord.Delete();
} 

 

 

 

We have documented GridGroupingControl guide lines and it will be available in following UG link, 

 

https://help.syncfusion.com/windowsforms/gridgrouping/getting-started  

 

And also, we have provided more customization for GridGroupingControl. Please refer the below KB link, 

https://www.syncfusion.com/kb/windowsforms/gridgroupingcontrol  

 

Please let us know if you have any other queries while using the GridGroupingControl. 

 

Regards, 

Mohanraj G