I'm creating a custom tool for arcmap toolbox where user select FeatureLayer in one combobox, and in next combobox user can select a field from selected FeatureLayer.FeatureLayer combobox fills automaticaly from:
...inputParameter.DataType = (IGPDataType)new GPFeatureLayerTypeClass();inputParameter.Value = (IGPValue)new GPFeatureLayer();The problem arises when I need to fill field combobox. I'm not realy sure how to set up its parameters. right now i'm trying something like this:
inputParameter = new GPParameterClass();inputParameter.Enabled = true;inputParameter.Name = "FieldTrg";inputParameter.DisplayName = "Feature Class Fields";inputParameter.Direction = esriGPParameterDirection.esriGPParameterDirectionInput;inputParameter.ParameterType = esriGPParameterType.esriGPParameterTypeRequired;inputParameter.DataType = (IGPDataType)new GPStringType();inputParameter.Value = (IGPValue)new GPString();//inputParameter.AddDependency("FeatureClassTrg");//IGPFeatureSchema fgs = new GPFeatureSchemaClass();//fgs.FieldsRule = esriGPSchemaFieldsType.esriGPSchemaFieldsAll;//inputParameter.Schema = (IGPSchema)fgsIn UpdateParameters function I were able to get fields in selected FeatureLayer/FeatureClass, but I had no idea where and how should I put them back in combobox.Also currently the field 'combobox' isn't really a combobox, but just a string field, so probably GPString isn't corect thing to use as its DataType/Value.
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...inputParameter.DataType = (IGPDataType)new GPFeatureLayerTypeClass();inputParameter.Value = (IGPValue)new GPFeatureLayer();The problem arises when I need to fill field combobox. I'm not realy sure how to set up its parameters. right now i'm trying something like this:
inputParameter = new GPParameterClass();inputParameter.Enabled = true;inputParameter.Name = "FieldTrg";inputParameter.DisplayName = "Feature Class Fields";inputParameter.Direction = esriGPParameterDirection.esriGPParameterDirectionInput;inputParameter.ParameterType = esriGPParameterType.esriGPParameterTypeRequired;inputParameter.DataType = (IGPDataType)new GPStringType();inputParameter.Value = (IGPValue)new GPString();//inputParameter.AddDependency("FeatureClassTrg");//IGPFeatureSchema fgs = new GPFeatureSchemaClass();//fgs.FieldsRule = esriGPSchemaFieldsType.esriGPSchemaFieldsAll;//inputParameter.Schema = (IGPSchema)fgsIn UpdateParameters function I were able to get fields in selected FeatureLayer/FeatureClass, but I had no idea where and how should I put them back in combobox.Also currently the field 'combobox' isn't really a combobox, but just a string field, so probably GPString isn't corect thing to use as its DataType/Value.
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