ColumnView.GetRowCellValue(Int32, GridColumn) Method
Returns a specific cell value from the current View.
Namespace: DevExpress.XtraGrid.Views.Base
Assembly: DevExpress.XtraGrid.v24.2.dll
NuGet Packages: DevExpress.Win.Grid, DevExpress.Win.Navigation
#Declaration
public virtual object GetRowCellValue(
int rowHandle,
GridColumn column
)
#Parameters
Name | Type | Description |
---|---|---|
row |
Int32 | An integer value representing a handle of the row where the desired cell resides. Row handles are not data source indexes, see the Accessing Rows in Code. Row Handles section of the “Rows” article for more information. |
column | Grid |
A Grid |
#Returns
Type | Description |
---|---|
Object | An object that is the specified cell’s value. null (Nothing in Visual Basic) if the specified cell is not found. In Instant Feedback Mode, an invalid “Non-loaded Value” is immediately returned if the requested cell is not currently loaded. |
#Remarks
The method returns null (Nothing in Visual Basic) in the following cases:
- the specified row handle doesn’t point to any of the rows within the current View or points to a group row;
- the specified column doesn’t belong to the View or is a null reference.
Note
In Instant Feedback Mode, this Get
If you require this value right away (e.
private void gridView1_CustomDrawGroupRow(object sender, DevExpress.XtraGrid.Views.Base.RowObjectCustomDrawEventArgs e) {
GridView view = sender as GridView;
int index = view.GetDataRowHandleByGroupRowHandle(e.RowHandle);
var cellValue = view.GetRowCellValue(index, "Mode");
if (BaseEdit.IsNotLoadedValue(cellValue)) {
((GridGroupRowInfo)e.Info).GroupText = "Loading...";
}
else {
int mode = (int)cellValue;
((GridGroupRowInfo)e.Info).GroupText += "custom " + mode;
}
}
Note
Detail pattern Views do not contain data and they are never displayed within Xtra
- Grid
Control. - returns the top most View in a grid;Main View - Grid
Control. - returns the focused View;Focused View - Grid
Control. - returns the currently maximized View;Default View - the sender parameter of View specific events;
- Grid
View. - returns a detail clone View for a specific master row.Get Detail View
#Example
The code sample below iterates through grid records and reduces the “Price” column values by 10 percent.
private void UpdatePrice(DevExpress.XtraGrid.Views.Base.ColumnView View) {
// Obtain the Price column.
DevExpress.XtraGrid.Columns.GridColumn col = View.Columns.ColumnByFieldName("Price");
if (col == null) return;
View.BeginSort();
try {
// Obtain the number of data rows.
int dataRowCount = View.DataRowCount;
// Traverse data rows and change the Price field values.
for (int i = 0; i < dataRowCount; i++) {
object cellValue = View.GetRowCellValue(i, col);
double newValue = Convert.ToDouble(cellValue) * 0.9;
View.SetRowCellValue(i, col, newValue);
}
} finally { View.EndSort(); }
}