在gridview上編輯模式顯示要用空值編輯的記錄

Question

我有一個從sql表記錄的gridview。我在3層架構中設置了網頁，當我選擇從gridview編輯特定記錄時，它給了我一個formview，裏面填充了我在gridview中選擇的記錄的詳細信息。當我在更改後單擊更新鏈接按鈕在formview上的一些細節，gridview顯示與選定的行的空白記錄。我需要在gridview這一行有數據。

請幫忙。

我的代碼在後面。

protected void Page_Load(object sender, EventArgs e) 
{ 
    if (!Page.IsPostBack) 
    { 
     BindGrid(); 
     fvProfiles.Visible = false; 
    } 
} 

protected void BindGrid() 
{ 
    gvProfiles.DataSource = new UserBO().GetAllUsers(); 
    gvProfiles.DataBind(); 
} 

protected void ShowGrid() 
{ 
    fvProfiles.Visible = false; 
    gvProfiles.Visible = true; 
    btnAdd.Visible = true; 
} 

protected void HideGrid() 
{ 
    fvProfiles.Visible = true; 
    gvProfiles.Visible = false; 
    btnAdd.Visible = false; 
} 

protected void btnAdd_Click(object sender, EventArgs e) 
{ 
    HideGrid(); 
    fvProfiles.ChangeMode(FormViewMode.Insert); 
} 
protected void InsertButton_Click(object sender, EventArgs e) 
{ 
    ShowGrid(); 
} 
protected void InsertCancelButton_Click(object sender, EventArgs e) 
{ 
    ShowGrid(); 
} 



protected void gvProfiles_RowCommand(object sender, GridViewCommandEventArgs e) 
{ 
    if (e.CommandName =="Edit") 
    { 
     gvProfiles.Visible = false; 
     fvProfiles.Visible = true; 
     btnAdd.Visible = false; 
     fvProfiles.ChangeMode(FormViewMode.Edit); 
     odsProfiles.SelectParameters["UserId"].DefaultValue = e.CommandArgument.ToString(); 
     odsProfiles.DataBind(); 
    } 
    if (e.CommandName == "LogicalDelete") 
    { 
     int i = Convert.ToInt32(e.CommandArgument); 
     //call the userBO method to logically delete the record. 
     //new UserBO().DeleteUser(i); 
    } 
    if (e.CommandName == "Delete") 
    { 
     int i = Convert.ToInt32(e.CommandArgument); 
     //call the userBO method to delete the record. 
     new UserBO().DeleteUser(i); 
    } 
} 
protected void gvProfiles_RowEditing(object sender, GridViewEditEventArgs e) 
{ 
    BindGrid(); 
} 
protected void UpdateButton_Click(object sender, EventArgs e) 
{ 
    ShowGrid(); 
} 
protected void UpdateCancelButton_Click(object sender, EventArgs e) 
{ 
    ShowGrid(); 
} 
protected void gvProfiles_RowUpdated(object sender, GridViewUpdatedEventArgs e) 
{ 
    BindGrid(); 
} 
} 

odsprofiles是一個ObjectDataSource。

Answer 1

數據綁定嘗試像這樣前清除GV行：

protected void BindGrid() 
{ 
    gvProfiles.DataSource = new UserBO().GetAllUsers(); 
    gvProfiles.Rows.Clear(); 
    gvProfiles.DataBind(); 
}