GridViewDataColumn.FieldName Property
Gets or sets the name of the database field assigned to the current column.
Namespace: DevExpress.Web
Assembly: DevExpress.Web.v19.2.dll
Declaration
Property Value
| Type | Default | Description |
|---|---|---|
| String | String.Empty | A String value that specifies the name of a data field. |
Remarks
To specify the text which is displayed within the column’s header, use the Caption property.
It is not allowed to set the FieldName property of several columns to the same data source’s field. The FieldName property should be set to a unique value.
For unbound columns, the FieldName should not refer to any field in ASPxGridView’s data source. Refer to the Unbound Columns topic for more information.
Example
The code sample below demonstrates how you can use the ASPxTrackBar control to specify a filter condition for the ASPxGridView control.
Handle the ASPxClientTrackBar.PositionChanging event to update label content that displays the currently selected range. The ASPxClientTrackBar.PositionChanged event handler applies the specified filter to the grid by using the ASPxClientGridView.ApplyFilter method. Note that the ASPxTrackBar.ValueChangedDelay property specifies the time interval between when a user changes the editor’s value and when the filter is applied.
The image below shows the result.
function initLbRange() {
lbRange.SetText('$' + tbSale.GetPositionStart() + ',000 - $' + tbSale.GetPositionEnd() + ',000');
updateGrid();
};
function updateLbRange(s, e) {
lbRange.SetText('$' + e.newPositionStart + ',000 - $' + e.newPositionEnd + ',000');
};
function updateGrid() {
var filterCondition = "[Sale] > " + tbSale.GetPositionStart() * 1000
+ " AND [Sale] < " + tbSale.GetPositionEnd() * 1000;
grid.ApplyFilter(filterCondition);
};
Related GitHub Examples
The following code snippets (auto-collected from DevExpress Examples) contain references to the FieldName property.
Note
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