Infragistics UltraWinGrid選擇新添加的行

Question

Im使用Infragistics4.Win.UltraWinGrid.v16.1數據容器。比方說，我剛剛更新了DataSource，並且希望將該行（它在DataSource更新時顯示）激活，因爲它會滾動到該行並將其選中。目前，我有以下錯誤的實現：

private void SelectByID(int searchId) 
{ 
    ISelectionManager selectionManager = grdProjects; 

    foreach (UltraGridRow row in grdProjects.Rows) 
    { 
     if (Convert.ToInt32(row.Cells["StagingID"].Value) == searchId) 
     { 
      selectionManager.ActivateItem(row); 
      row.Activate(); 
      if (grdProjects.ActiveRowScrollRegion.IsActiveScrollRegion) 
       grdProjects.ActiveRowScrollRegion.ScrollRowIntoView(row); 
      break; 
     } 
    } 
} 

private void _createProjectDialog_FormClosed(object sender, FormClosedEventArgs e) 
{ 
    CreateProjectDialog send = (CreateProjectDialog)sender; 
    if (send.SetAsCurrent) 
    { 
     this.Close(); 
    } 
    else 
    { 
     //refresh grid and set current proj 
     _stagingProjects.Add(send.StagingProject); 
     grdProjects.Rows.Refresh(RefreshRow.ReloadData); 
     SelectedProject = ApplicationContext.Instance.Project.StagingProject; 
     SelectByID(SelectedProject.StagingID); 
    } 
} 

注意我添加的兩行代碼：

row.Activate(); 
if(grdProjects.ActiveRowScrollRegion.IsActiveScrollRegion) 

的IsActiveScrollRegion條件通過，但該行仍沒有在網後選擇執行。

謝謝你的幫助！

Answer 1

如果你想選擇特定的行，只需使用row.Selected = true;，如果你想激活特定的行，只需使用row.Activated = true;想必你知道這兩者之間的差異，我很快在代碼註釋中解釋它。這是一個簡單的表單示例。

public partial class Form1 : Form 
{ 
    private DataSet _dataSet = new DataSet(); 

    public Form1() 
    { 
     InitializeComponent(); 
    } 

    private void Form1_Load(object sender, EventArgs e) 
    { 
     InitializeDataSet(_dataSet); 
    } 

    private void SelectByID(int searchId) 
    { 
     ISelectionManager selectionManager = this.ultraGrid1; 

     foreach (UltraGridRow row in this.ultraGrid1.Rows) 
     { 
      if (Convert.ToInt32(row.Cells["ID"].Value) == searchId) 
      { 
       if (ultraGrid1.ActiveRowScrollRegion.IsActiveScrollRegion) 
       { 
        ultraGrid1.ActiveRowScrollRegion.ScrollRowIntoView(row); 

        // Activating and selecting are two different things. 
        // Activating the row draws dotted border around it. 
        // Selecting the row highlights it with blue color by default. 
        row.Activated = true; 
        row.Selected = true; 
        break; 
       } 
      } 
     } 
    } 

    private void ultraButton1_Click(object sender, EventArgs e) 
    { 
     var dataSourceRows = _dataSet.Tables[0].Rows; 
     var dataRow = dataSourceRows.Add(new object[] { dataSourceRows.Count }); 

     SelectByID(dataSourceRows.Count - 1); 
    } 

    private void InitializeDataSet(DataSet dataSet) 
    { 
     var dataTable = dataSet.Tables.Add(); 

     dataTable.Columns.Add("ID", typeof(int)); 

     for (int index = 0; index <= 100; index++) 
     { 
      dataTable.Rows.Add(new object[] { index }); 
     } 

     this.ultraGrid1.DataSource = dataTable; 
    } 
}