Setting_the_Default_Binding_Mode_1a08f70.md

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Setting the Default Binding Mode

The default binding mode applies when a model instance is created. You can overwrite the default binding mode after model creation.

Here's what you need to know:

• To change the default binding mode, call the setDefaultBindingMode method on the model as follows:

  var oModel = new sap.ui.model.json.JSONModel();
  oModel.setDefaultBindingMode(sap.ui.model.BindingMode.OneWay);

  In this example, all new bindings for the model will have the one-way binding mode by default.

• You can, however, only set supported binding modes as default binding mode. You can check if a binding mode is supported as follows:

  var oModel = new sap.ui.model.json.JSONModel();
  if (oModel.isBindingModeSupported(sap.ui.model.BindingMode.OneTime)) { // true
      oModel.setDefaultBindingMode(sap.ui.model.BindingMode.OneTime); 
  }

  Note:

  When you change the binding mode of an existing model instance, the existing bindings are not updated with the newly set binding mode.