SfDataGrid visual corruption on after scrolling

[T]

Hi,

Example of visual corruption: https://imgur.com/a/cKdL3sg

To reproduce modify Getting Started demo as follows

        public Form1()

        {

            InitializeComponent();

            var data = new OrderInfoCollection();

            sfDataGrid.DataSource = data.OrdersListDetails;

            sfDataGrid.Style.CellStyle.Font.Facename = "Consolas";

            sfDataGrid.Style.CellStyle.Font.Size = 12f;

            sfDataGrid.QueryRowStyle += Grid_QueryRowStyle;

        }

        private void Grid_QueryRowStyle(object sender, QueryRowStyleEventArgs e)

        {

            if (e.RowType == RowType.DefaultRow)

                sfDataGrid.TableControl.RowHeights[e.RowIndex] = 35;

        }

[Deivaselvan Y]

Hi Tipal,  

Thanks for contacting Syncfusion support. 

This rendering issue may have occurred due to row height has been updated into the QueryRowStyle event instead of QueryRowHeight. To resolve this rendering issue, you should use SfDataGrid.QueryRowHeight event for changing the row height of the default rows. Please refer to the following code example and sample from the given location. 

Code Example: 

this.sfDataGrid.QueryRowHeight += sfDataGrid_QueryRowHeight; 

 

void sfDataGrid_QueryRowHeight(object sender, QueryRowHeightEventArgs e) 

{ 

    if (this.sfDataGrid.View.TopLevelGroup != null ) 

    { 

        if (IsDefauldRow(e.RowIndex)) 

        { 

            e.Handled = true; 

            e.Height = 50; 

        } 

    } 

    else if (!(this.sfDataGrid.TableControl.IsTableSummaryIndex(e.RowIndex) || 

        this.sfDataGrid.IsAddNewRowIndex(e.RowIndex) || 

        this.sfDataGrid.IsFilterRowIndex(e.RowIndex) ||  

        this.sfDataGrid.TableControl.GetHeaderIndex() == e.RowIndex)) 

    { 

        e.Handled = true; 

        e.Height = 50; 

    } 

} 

 

bool IsDefauldRow(int rowIndex) 

{ 

    var startIndex = this.sfDataGrid.TableControl.ResolveStartIndexBasedOnPosition(); 

    var record = this.sfDataGrid.View.TopLevelGroup.DisplayElements[rowIndex - startIndex]; 

 

    return record != null && record is RecordEntry; 

} 

Sample Location : http://www.syncfusion.com/downloads/support/directtrac/general/ze/CS1406796902  

UG link : https://help.syncfusion.com/windowsforms/sfdatagrid/rowheightcustomization#set-height-for-the-specific-row  

Regards, 

Deivaselvan 

[T]

Thank you!

[Deivaselvan Y]

Hi Tipal,

You are welcome and please get back to us if you need any other assistance.

Regards,
Deivaselvan