打开窗体提示未将对象引用设置到对象的实例

Question

|在 DevExpress.XtraEditors.Repository.RepositoryItem.CreateDesigner()
在
DevExpress.XtraEditors.Repository.RepositoryItem.FilterProperties(PropertyDescriptorCollection
collection)
在
System.ComponentModel.TypeDescriptor.MergedTypeDescriptor.System.ComponentModel.ICustomTypeDescriptor.GetProperties()
在
System.ComponentModel.TypeDescriptor.GetPropertiesImpl(Object component,
Attribute[] attributes, Boolean noCustomTypeDesc, Boolean noAttributes)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.GetPropertiesHelper(IDesignerSerializationManager
manager, Object instance, Attribute[] attributes)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyReferenceExpression(IDesignerSerializationManager
manager, CodePropertyReferenceExpression propertyReferenceEx, Boolean
reportError)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSerializationManager
manager, String name, CodeExpression expression)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyAssignStatement(IDesignerSerializationManager
manager, CodeAssignStatement statement, CodePropertyReferenceExpression
propertyReferenceEx, Boolean reportError)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeAssignStatement(IDesignerSerializationManager
manager, CodeAssignStatement statement)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeStatement(IDesignerSerializationManager
manager, CodeStatement statement)|在 DevExpress.XtraEditors.Repository.RepositoryItem.CreateDesigner()
在
DevExpress.XtraEditors.Repository.RepositoryItem.FilterProperties(PropertyDescriptorCollection
collection)
在
System.ComponentModel.TypeDescriptor.MergedTypeDescriptor.System.ComponentModel.ICustomTypeDescriptor.GetProperties()
在
System.ComponentModel.TypeDescriptor.GetPropertiesImpl(Object component,
Attribute[] attributes, Boolean noCustomTypeDesc, Boolean noAttributes)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.GetPropertiesHelper(IDesignerSerializationManager
manager, Object instance, Attribute[] attributes)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyReferenceExpression(IDesignerSerializationManager
manager, CodePropertyReferenceExpression propertyReferenceEx, Boolean
reportError)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSerializationManager
manager, String name, CodeExpression expression)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyAssignStatement(IDesignerSerializationManager
manager, CodeAssignStatement statement, CodePropertyReferenceExpression
propertyReferenceEx, Boolean reportError)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeAssignStatement(IDesignerSerializationManager
manager, CodeAssignStatement statement)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeStatement(IDesignerSerializationManager
manager, CodeStatement statement)|在 DevExpress.XtraEditors.Repository.RepositoryItem.CreateDesigner()
在
DevExpress.XtraEditors.Repository.RepositoryItem.FilterProperties(PropertyDescriptorCollection
collection)
在
System.ComponentModel.TypeDescriptor.MergedTypeDescriptor.System.ComponentModel.ICustomTypeDescriptor.GetProperties()
在
System.ComponentModel.TypeDescriptor.GetPropertiesImpl(Object component,
Attribute[] attributes, Boolean noCustomTypeDesc, Boolean noAttributes)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.GetPropertiesHelper(IDesignerSerializationManager
manager, Object instance, Attribute[] attributes)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyReferenceExpression(IDesignerSerializationManager
manager, CodePropertyReferenceExpression propertyReferenceEx, Boolean
reportError)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSerializationManager
manager, String name, CodeExpression expression)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyAssignStatement(IDesignerSerializationManager
manager, CodeAssignStatement statement, CodePropertyReferenceExpression
propertyReferenceEx, Boolean reportError)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeAssignStatement(IDesignerSerializationManager
manager, CodeAssignStatement statement)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeStatement(IDesignerSerializationManager
manager, CodeStatement statement)| | -------- | -------- | -------- | |在 DevExpress.XtraEditors.Repository.RepositoryItem.CreateDesigner()
在
DevExpress.XtraEditors.Repository.RepositoryItem.FilterProperties(PropertyDescriptorCollection
collection)
在
System.ComponentModel.TypeDescriptor.MergedTypeDescriptor.System.ComponentModel.ICustomTypeDescriptor.GetProperties()
在
System.ComponentModel.TypeDescriptor.GetPropertiesImpl(Object component,
Attribute[] attributes, Boolean noCustomTypeDesc, Boolean noAttributes)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.GetPropertiesHelper(IDesignerSerializationManager
manager, Object instance, Attribute[] attributes)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyReferenceExpression(IDesignerSerializationManager
manager, CodePropertyReferenceExpression propertyReferenceEx, Boolean
reportError)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSerializationManager
manager, String name, CodeExpression expression)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyAssignStatement(IDesignerSerializationManager
manager, CodeAssignStatement statement, CodePropertyReferenceExpression
propertyReferenceEx, Boolean reportError)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeAssignStatement(IDesignerSerializationManager
manager, CodeAssignStatement statement)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeStatement(IDesignerSerializationManager
manager, CodeStatement statement)在 DevExpress.XtraEditors.Repository.RepositoryItem.CreateDesigner()
在
DevExpress.XtraEditors.Repository.RepositoryItem.FilterProperties(PropertyDescriptorCollection
collection)
在
System.ComponentModel.TypeDescriptor.MergedTypeDescriptor.System.ComponentModel.ICustomTypeDescriptor.GetProperties()
在
System.ComponentModel.TypeDescriptor.GetPropertiesImpl(Object component,
Attribute[] attributes, Boolean noCustomTypeDesc, Boolean noAttributes)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.GetPropertiesHelper(IDesignerSerializationManager
manager, Object instance, Attribute[] attributes)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyReferenceExpression(IDesignerSerializationManager
manager, CodePropertyReferenceExpression propertyReferenceEx, Boolean
reportError)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSerializationManager
manager, String name, CodeExpression expression)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyAssignStatement(IDesignerSerializationManager
manager, CodeAssignStatement statement, CodePropertyReferenceExpression
propertyReferenceEx, Boolean reportError)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeAssignStatement(IDesignerSerializationManager
manager, CodeAssignStatement statement)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeStatement(IDesignerSerializationManager
manager, CodeStatement statement) 在 DevExpress.XtraEditors.Repository.RepositoryItem.CreateDesigner()
在
DevExpress.XtraEditors.Repository.RepositoryItem.FilterProperties(PropertyDescriptorCollection
collection)
在
System.ComponentModel.TypeDescriptor.MergedTypeDescriptor.System.ComponentModel.ICustomTypeDescriptor.GetProperties()
在
System.ComponentModel.TypeDescriptor.GetPropertiesImpl(Object component,
Attribute[] attributes, Boolean noCustomTypeDesc, Boolean noAttributes)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.GetPropertiesHelper(IDesignerSerializationManager
manager, Object instance, Attribute[] attributes)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyReferenceExpression(IDesignerSerializationManager
manager, CodePropertyReferenceExpression propertyReferenceEx, Boolean
reportError)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSerializationManager
manager, String name, CodeExpression expression)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyAssignStatement(IDesignerSerializationManager
manager, CodeAssignStatement statement, CodePropertyReferenceExpression
propertyReferenceEx, Boolean reportError)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeAssignStatement(IDesignerSerializationManager
manager, CodeAssignStatement statement)
在
System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeStatement(IDesignerSerializationManager
manager, CodeStatement statement) 在 DevExpress.XtraEditors.Repository.RepositoryItem.CreateDesigner() 在 DevExpress.XtraEditors.Repository.RepositoryItem.FilterProperties(PropertyDescriptorCollection collection) 在 System.ComponentModel.TypeDescriptor.MergedTypeDescriptor.System.ComponentModel.ICustomTypeDescriptor.GetProperties() 在 System.ComponentModel.TypeDescriptor.GetPropertiesImpl(Object component, Attribute[] attributes, Boolean noCustomTypeDesc, Boolean noAttributes) 在 System.ComponentModel.Design.Serialization.CodeDomSerializerBase.GetPropertiesHelper(IDesignerSerializationManager manager, Object instance, Attribute[] attributes) 在 System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyReferenceExpression(IDesignerSerializationManager manager, CodePropertyReferenceExpression propertyReferenceEx, Boolean reportError) 在 System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSerializationManager manager, String name, CodeExpression expression) 在 System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyAssignStatement(IDesignerSerializationManager manager, CodeAssignStatement statement, CodePropertyReferenceExpression propertyReferenceEx, Boolean reportError) 在 System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeAssignStatement(IDesignerSerializationManager manager, CodeAssignStatement statement) 在 System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeStatement(IDesignerSerializationManager manager, CodeStatement statement)|