ObjectChangeConflict.Resolve 方法
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
解決成員間的衝突。
多載
| 名稱 | Description |
|---|---|
| Resolve() |
透過保留現有值並重設基線原始值以符合較新的資料庫值來解決成員衝突。 |
| Resolve(RefreshMode) |
透過指定的 RefreshMode。 |
| Resolve(RefreshMode, Boolean) |
解決成員衝突時,保留現有值並重置基線原始值。 |
Resolve()
透過保留現有值並重設基線原始值以符合較新的資料庫值來解決成員衝突。
public:
void Resolve();
public void Resolve();
member this.Resolve : unit -> unit
Public Sub Resolve ()
適用於
Resolve(RefreshMode)
透過指定的 RefreshMode。
public:
void Resolve(System::Data::Linq::RefreshMode refreshMode);
public void Resolve(System.Data.Linq.RefreshMode refreshMode);
member this.Resolve : System.Data.Linq.RefreshMode -> unit
Public Sub Resolve (refreshMode As RefreshMode)
參數
- refreshMode
- RefreshMode
從 RefreshMode中取得的適當選項。
範例
以下範例會用資料庫中的值覆蓋當前值。
Northwnd db = new Northwnd("...");
try
{
db.SubmitChanges(ConflictMode.ContinueOnConflict);
}
catch (ChangeConflictException e)
{
Console.WriteLine(e.Message);
foreach (ObjectChangeConflict occ in db.ChangeConflicts)
{
// All database values overwrite current values.
occ.Resolve(RefreshMode.OverwriteCurrentValues);
}
}
Dim db As New Northwnd("...")
Try
db.SubmitChanges(ConflictMode.ContinueOnConflict)
Catch ex As ChangeConflictException
Console.WriteLine(ex.Message)
For Each occ As ObjectChangeConflict In db.ChangeConflicts
' All database values overwrite current values.
occ.Resolve(Data.Linq.RefreshMode.OverwriteCurrentValues)
Next
End Try
以下範例展示了如何將原始值與從資料庫取得的值交換。 目前的數值不會被修改。
try
{
db.SubmitChanges(ConflictMode.ContinueOnConflict);
}
catch (ChangeConflictException e)
{
Console.WriteLine(e.Message);
foreach (ObjectChangeConflict occ in db.ChangeConflicts)
{
//No database values are merged into current.
occ.Resolve(RefreshMode.KeepCurrentValues);
}
}
Try
db.SubmitChanges(ConflictMode.ContinueOnConflict)
Catch ex As ChangeConflictException
Console.WriteLine(ex.Message)
For Each occ As ObjectChangeConflict In db.ChangeConflicts
' No database values are merged into current.
occ.Resolve(Data.Linq.RefreshMode.KeepCurrentValues)
Next
End Try
以下範例保留已更改的當前值,但以資料庫值更新其他值。
try
{
db.SubmitChanges(ConflictMode.ContinueOnConflict);
}
catch (ChangeConflictException e)
{
Console.WriteLine(e.Message);
// Automerge database values for members that client
// has not modified.
foreach (ObjectChangeConflict occ in db.ChangeConflicts)
{
occ.Resolve(RefreshMode.KeepChanges);
}
}
// Submit succeeds on second try.
db.SubmitChanges(ConflictMode.FailOnFirstConflict);
Try
db.SubmitChanges(ConflictMode.ContinueOnConflict)
Catch ex As ChangeConflictException
Console.WriteLine(ex.Message)
For Each occ As ObjectChangeConflict In db.ChangeConflicts
' Automerge database values into current for members
' that client has not modified.
occ.Resolve(Data.Linq.RefreshMode.KeepChanges)
Next
End Try
' Submit succeeds on second try.
db.SubmitChanges(ConflictMode.FailOnFirstConflict)
備註
以下範例展示了使用各種值所 RefreshMode產生的結果。
適用於
Resolve(RefreshMode, Boolean)
解決成員衝突時,保留現有值並重置基線原始值。
public:
void Resolve(System::Data::Linq::RefreshMode refreshMode, bool autoResolveDeletes);
public void Resolve(System.Data.Linq.RefreshMode refreshMode, bool autoResolveDeletes);
member this.Resolve : System.Data.Linq.RefreshMode * bool -> unit
Public Sub Resolve (refreshMode As RefreshMode, autoResolveDeletes As Boolean)
參數
- refreshMode
- RefreshMode
從 RefreshMode中取得的適當選項。
- autoResolveDeletes
- Boolean
當 true時,會自動解決因已不在資料庫中修改的物件所產生的衝突。