GridView의 CheckBoxList에만 새 행이 추가 될 때 첫 번째 옵션이 표시됩니다.

사용자가 데이터를 채울 수있는 여러 열이있는 눈금보기가 있으며 데이터 채우기를 마친 후 새 행을 추가 할 수 있습니다. 열 중에서 CheckBoxList가있는 열이 있습니다.이 확인란을 사용하면 CheckBoxList의 옵션을 여러 번 선택할 수 있지만 새 행을 추가 할 때마다 사용자가 선택한 첫 번째 옵션 만 나머지 선택 항목이 사라지면 남아 있습니다. 새 행을 추가하는 동안 사용자가 선택한 옵션을 유지할 수있는 방법은 무엇입니까?GridView의 CheckBoxList에만 새 행이 추가 될 때 첫 번째 옵션이 표시됩니다.

private void SetPreviousDataLecturer() 
{ 
    int rowIndex = 0; 
    if (ViewState["LecturerGridView"] != null) 
    { 
     DataTable dataTableCurrent = (DataTable)ViewState["LecturerGridView"]; 
     if (dataTableCurrent.Rows.Count > 0) 
     { 
      for (int i = 0; i < dataTableCurrent.Rows.Count; i++) 
      { 
       TextBox textBoxLName = (TextBox)LecturerGridView.Rows[rowIndex].Cells[1].FindControl("LecturerName"); 
       TextBox textBoxLID = (TextBox)LecturerGridView.Rows[rowIndex].Cells[2].FindControl("LecturerID"); 
       TextBox textBoxLAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[3].FindControl("LecturerAddress"); 
       TextBox textBoxLPNumber = (TextBox)LecturerGridView.Rows[rowIndex].Cells[4].FindControl("LecturerPNumber"); 
       TextBox textBoxLEAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[5].FindControl("LecturerEAddress"); 
       CheckBoxList checkBoxListLCourse = (CheckBoxList)LecturerGridView.Rows[rowIndex].Cells[6].FindControl("LecturerCourse"); 
       TextBox textBoxLPassword = (TextBox)LecturerGridView.Rows[rowIndex].Cells[7].FindControl("LecturerPassword"); 

       LecturerGridView.Rows[i].Cells[0].Text = Convert.ToString(i + 1); 
       textBoxLName.Text = dataTableCurrent.Rows[i]["LecturerName"].ToString(); 
       textBoxLID.Text = dataTableCurrent.Rows[i]["LecturerID"].ToString(); 
       textBoxLAdd.Text = dataTableCurrent.Rows[i]["LecturerAddress"].ToString(); 
       textBoxLPNumber.Text = dataTableCurrent.Rows[i]["LecturerPNumber"].ToString(); 
       textBoxLEAdd.Text = dataTableCurrent.Rows[i]["LecturerEAddress"].ToString(); 
       checkBoxListLCourse.SelectedValue = dataTableCurrent.Rows[i]["LecturerCourse"].ToString(); 
       textBoxLPassword.Text = dataTableCurrent.Rows[i]["LecturerPassword"].ToString(); 
       rowIndex++; 
      } 
     } 
    } 
} 

private void AddNewRowToLecturerGV() 
{ 
    int rowIndex = 0; 
    if (ViewState["LecturerGridView"] != null) 
    { 
     DataTable dataTableCurrent = (DataTable)ViewState["LecturerGridView"]; 
     DataRow dataRowCurrent = null; 
     if (dataTableCurrent.Rows.Count > 0) 
     { 
      for (int i = 1; i <= dataTableCurrent.Rows.Count; i++) 
      { 
       TextBox textBoxLName = (TextBox)LecturerGridView.Rows[rowIndex].Cells[1].FindControl("LecturerName"); 
       TextBox textBoxLID = (TextBox)LecturerGridView.Rows[rowIndex].Cells[2].FindControl("LecturerID"); 
       TextBox textBoxLAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[3].FindControl("LecturerAddress"); 
       TextBox textBoxLPNumber = (TextBox)LecturerGridView.Rows[rowIndex].Cells[4].FindControl("LecturerPNumber"); 
       TextBox textBoxLEAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[5].FindControl("LecturerEAddress"); 
       CheckBoxList checkBoxListLCourse = (CheckBoxList)LecturerGridView.Rows[rowIndex].Cells[6].FindControl("LecturerCourse"); 
       TextBox textBoxLPassword = (TextBox)LecturerGridView.Rows[rowIndex].Cells[7].FindControl("LecturerPassword"); 

       dataRowCurrent = dataTableCurrent.NewRow(); 
       dataRowCurrent["RowNumber"] = i + 1; 
       dataTableCurrent.Rows[i - 1]["LecturerName"] = textBoxLName.Text; 
       dataTableCurrent.Rows[i - 1]["LecturerID"] = textBoxLID.Text; 
       dataTableCurrent.Rows[i - 1]["LecturerAddress"] = textBoxLAdd.Text; 
       dataTableCurrent.Rows[i - 1]["LecturerPNumber"] = textBoxLPNumber.Text; 
       dataTableCurrent.Rows[i - 1]["LecturerEAddress"] = textBoxLEAdd.Text; 
       dataTableCurrent.Rows[i - 1]["LecturerCourse"] = checkBoxListLCourse.SelectedValue.ToString(); 
       dataTableCurrent.Rows[i - 1]["LecturerPassword"] = textBoxLPassword.Text; 

       rowIndex++; 
      } 

      dataTableCurrent.Rows.Add(dataRowCurrent); 
      ViewState["LecturerGridView"] = dataTableCurrent; 

      LecturerGridView.DataSource = dataTableCurrent; 
      LecturerGridView.DataBind(); 
     } 
    } 
    else 
    { 
     Response.Write("ViewState is null."); 
    } 
    SetPreviousDataLecturer(); 
}

출처

2017-10-11 Tan Yih Wei

aspx 파일 – Arshad

안녕하십니까? @ Arshad 내가 aspx 및 aspx.cs를 포함 시켰습니다. 더 필요한 것이 있으면 알려주세요. 감사. –

전체 .cs 파일입니까? 페이지로드 이벤트도 볼 수 있도록 전체 .cs 파일을 포함하십시오. – Arshad

내 대답. 이 대답은 체크 박스 목록에있는 항목을 체크 할 때 체크 박스 목록이 자동으로 가장 위쪽으로 스크롤되는 것과 같은 몇 가지 문제가 있습니다.

private void SetPreviousDataLecturer() 
{ 
    int rowIndex = 0; 

    if (ViewState["LecturerGridView"] != null) 
    { 
     DataTable dataTableCurrent = (DataTable)ViewState["LecturerGridView"]; 
     if (dataTableCurrent.Rows.Count > 0) 
     { 
      for (int i = 0; i < dataTableCurrent.Rows.Count; i++) 
      { 
       TextBox textBoxLName = (TextBox)LecturerGridView.Rows[rowIndex].Cells[1].FindControl("LecturerName"); 
       TextBox textBoxLID = (TextBox)LecturerGridView.Rows[rowIndex].Cells[2].FindControl("LecturerID"); 
       TextBox textBoxLAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[3].FindControl("LecturerAddress"); 
       TextBox textBoxLPNumber = (TextBox)LecturerGridView.Rows[rowIndex].Cells[4].FindControl("LecturerPNumber"); 
       TextBox textBoxLEAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[5].FindControl("LecturerEAddress"); 
       CheckBoxList checkBoxListLCourse = (CheckBoxList)LecturerGridView.Rows[rowIndex].Cells[6].FindControl("LecturerCourse"); 
       TextBox textBoxLPassword = (TextBox)LecturerGridView.Rows[rowIndex].Cells[7].FindControl("LecturerPassword"); 

       LecturerGridView.Rows[i].Cells[0].Text = Convert.ToString(i + 1); 
       textBoxLName.Text = dataTableCurrent.Rows[i]["LecturerName"].ToString(); 
       textBoxLID.Text = dataTableCurrent.Rows[i]["LecturerID"].ToString(); 
       textBoxLAdd.Text = dataTableCurrent.Rows[i]["LecturerAddress"].ToString(); 
       textBoxLPNumber.Text = dataTableCurrent.Rows[i]["LecturerPNumber"].ToString(); 
       textBoxLEAdd.Text = dataTableCurrent.Rows[i]["LecturerEAddress"].ToString(); 
       checkBoxListLCourse.Text = dataTableCurrent.Rows[i]["LecturerCourse"].ToString(); 
       string lecturerCourse = dataTableCurrent.Rows[i]["LecturerCourse"].ToString(); 
       if (!string.IsNullOrEmpty(lecturerCourse)) 
       { 
        for (int j = 0; j < lecturerCourse.Split(',').Length; j++) 
        { 
         checkBoxListLCourse.Items.FindByValue(lecturerCourse.Split(',')[j].ToString()).Selected = true; 
        } 
       } 
       textBoxLPassword.Text = dataTableCurrent.Rows[i]["LecturerPassword"].ToString(); 
       rowIndex++; 
      } 
     } 
    } 
} 

private void AddNewRowToLecturerGV() 
{ 
    int rowIndex = 0; 

    if (ViewState["LecturerGridView"] != null) 
    { 
     DataTable dataTableCurrent = (DataTable)ViewState["LecturerGridView"]; 
     DataRow dataRowCurrent = null; 
     if (dataTableCurrent.Rows.Count > 0) 
     { 
      for (int i = 1; i <= dataTableCurrent.Rows.Count; i++) 
      { 
       TextBox textBoxLName = (TextBox)LecturerGridView.Rows[rowIndex].Cells[1].FindControl("LecturerName"); 
       TextBox textBoxLID = (TextBox)LecturerGridView.Rows[rowIndex].Cells[2].FindControl("LecturerID"); 
       TextBox textBoxLAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[3].FindControl("LecturerAddress"); 
       TextBox textBoxLPNumber = (TextBox)LecturerGridView.Rows[rowIndex].Cells[4].FindControl("LecturerPNumber"); 
       TextBox textBoxLEAdd = (TextBox)LecturerGridView.Rows[rowIndex].Cells[5].FindControl("LecturerEAddress"); 
       CheckBoxList checkBoxListLCourse = (CheckBoxList)LecturerGridView.Rows[rowIndex].Cells[6].FindControl("LecturerCourse"); 
       TextBox textBoxLPassword = (TextBox)LecturerGridView.Rows[rowIndex].Cells[7].FindControl("LecturerPassword"); 

       dataRowCurrent = dataTableCurrent.NewRow(); 
       dataRowCurrent["RowNumber"] = i + 1; 
       dataTableCurrent.Rows[i - 1]["LecturerName"] = textBoxLName.Text; 
       dataTableCurrent.Rows[i - 1]["LecturerID"] = textBoxLID.Text; 
       dataTableCurrent.Rows[i - 1]["LecturerAddress"] = textBoxLAdd.Text; 
       dataTableCurrent.Rows[i - 1]["LecturerPNumber"] = textBoxLPNumber.Text; 
       dataTableCurrent.Rows[i - 1]["LecturerEAddress"] = textBoxLEAdd.Text; 
       string lecturerCourse = string.Empty; 
       foreach (ListItem item in checkBoxListLCourse.Items) 
       { 
        if (item.Selected) 
        { 
         if (!string.IsNullOrEmpty(lecturerCourse)) 
         { 
          lecturerCourse += ","; 
         } 
         lecturerCourse += item.Value; 
        } 
       } 
       dataTableCurrent.Rows[i - 1]["LecturerCourse"] = lecturerCourse; 
       dataTableCurrent.Rows[i - 1]["LecturerPassword"] = textBoxLPassword.Text; 
       rowIndex++; 
      } 
      dataTableCurrent.Rows.Add(dataRowCurrent); 
      ViewState["LecturerGridView"] = dataTableCurrent; 

      LecturerGridView.DataSource = dataTableCurrent; 
      LecturerGridView.DataBind(); 
     } 
    } 
    else 
    { 
     Response.Write("ViewState is null."); 
    } 
    SetPreviousDataLecturer(); 
}

출처

2017-10-12 10:11:03

선택한 체크 박스의 상태를 유지해야합니다. 버튼에서 '새 행 추가'를 클릭 한 다음 DataTable의 각 행 상태를 가져 와서 빈 행을 추가 한 다음 해당 DataTable을 채 웁니다.

확인란의 선택한 항목의 상태도 유지해야합니다. 당신은 같은 CSV 값을 선택받을 수 있습니다

string selectedItems = String.Join(",", 
checkBoxListLCourse.Items.OfType<ListItem>().Where(r => r.Selected) 
    .Select(r => r.Value));

당신은으로 복원 할 수 있습니다

 string[] items = selectedItems.Split(','); 
     for (int i = 0; i < checkBoxListLCourse.Items.Count; i++) 
     { 
      if (items.Contains(checkBoxListLCourse.Items[i].Value)) 
      { 
       checkBoxListLCourse.Items[i].Selected = true; 
      } 
     }

출처

2017-10-11 05:08:09 Arshad

안녕하세요. @ Arshad 답장을 보내 주셔서 감사합니다. 정말 유감스럽게 생각하지만 어디서 대답해야합니까? –

GridView의 CheckBoxList에만 새 행이 추가 될 때 첫 번째 옵션이 표시됩니다.

답변

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