topic Re: Selection in FeatureDataGrid in ArcGIS API for Silverlight Questions

Selection in FeatureDataGrid

UlfGrimhardt — Fri, 28 Mar 2014 11:08:36 GMT

Hello,

i have a question concerning the selection of a FeatureDataGrids or FeatureLayers.
In my Application i have a FeatureLayer and a FeatureDataGrid. If i select a row in the datagrid the feature in the map is selected and vise versa. Now i would like to select a Feature via CodeBehind. Is that possible?

For example i would like to select the feature by specific Attributes.

Thanks in Advance!

Re: Selection in FeatureDataGrid

AhmedEl-Sisi — Sat, 11 Dec 2021 09:36:01 GMT

Hello,

i have a question concerning the selection of a FeatureDataGrids or FeatureLayers.
In my Application i have a FeatureLayer and a FeatureDataGrid. If i select a row in the datagrid the feature in the map is selected and vise versa. Now i would like to select a Feature via CodeBehind. Is that possible?

For example i would like to select the feature by specific Attributes.

Thanks in Advance!

Hi,
you can select a feature via code behind using Graphic.Select() method or Graphic.Selected property.

for example, you can select some existing features from a FeatureLayer using somthing like the following:

List<Graphic> filteredGraphics = featureLayer.Graphics.Where(g => Convert.ToString(g.Attributes["AttributeKey"]) == "AttributeValue").ToList();
 foreach (Graphic g in filteredGraphics)
 {
    g.Select();
 }

Re: Selection in FeatureDataGrid

UlfGrimhardt — Wed, 09 Apr 2014 11:58:34 GMT

Ok thank you for the help.
That works great if i set the FeatureLayer Mode to "OnDemand" or "Snapshot", but if i set it so SelectionOnly no Feature is shown.
The filteredGraphics List in your Code doesnt contains any Features so no Feautre is found.

It would be great if i could select a feature by code from the layer and just the features that fulfill the where-clause are shown in the DataGrid.

Do you have any Ideas concerning that problem?

Thanks in Advance

Ulf

Re: Selection in FeatureDataGrid

AhmedEl-Sisi — Thu, 10 Apr 2014 05:16:40 GMT

Ok thank you for the help.
That works great if i set the FeatureLayer Mode to "OnDemand" or "Snapshot", but if i set it so SelectionOnly no Feature is shown.
The filteredGraphics List in your Code doesnt contains any Features so no Feautre is found.

It would be great if i could select a feature by code from the layer and just the features that fulfill the where-clause are shown in the DataGrid.

Do you have any Ideas concerning that problem?

Thanks in Advance

Ulf

Use FeatureLayer.WhereClause to filter your features and remove SelectionOnly Mode.

Re: Selection in FeatureDataGrid

UlfGrimhardt — Mon, 14 Apr 2014 12:39:24 GMT

Thanks for the Info! That helped to solve my Problem!