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Infragistics WebDataGrid復選框和隱藏列問題

[英]Infragistics WebDataGrid Checkbox and hidden column problems

我正在嘗試隱藏“鍵”或[0]列。 我也試圖在下面的代碼中設置復選框,最終用戶可以單擊/取消單擊。 默認情況下,我將復選框設置為未選中狀態。

這段代碼dgvPunchs.Columns[0].Hidden = true; 是我發現如何隱藏列的方法,但是由於以下錯誤而出錯。

“你調用的對象是空的。”

當前還顯示復選框,但是最終用戶無法單擊它們。 我感到困惑。 請幫忙! :)

protected void GenerateSalaryPunchesTable()
        {
            this.dgvPunchs.Rows.Clear();

            string[] DateRange = this.cboPayPeriods.SelectedItem.Text.ToString().Replace(" ", "").Split('-');

            DataTable pDates = new DataTable();

            pDates.Columns.Add("Key");
            pDates.Columns.Add("Date", System.Type.GetType("System.DateTime")); // Date Cell
            pDates.Columns.Add("Worked", System.Type.GetType("System.Boolean")); //Worked CB
            pDates.Columns.Add("Vaction", System.Type.GetType("System.Boolean")); //Vacation CB
            pDates.Columns.Add("Sick", System.Type.GetType("System.Boolean")); //Sick CB
            pDates.Columns.Add("Holiday", System.Type.GetType("System.Boolean")); //Holiday CB
            pDates.Columns.Add("Error", System.Type.GetType("System.String")); //Error

            foreach (DataColumn col in pDates.Columns)
            {
                col.ReadOnly = false;
            }

            pDates.Columns["Key"].ColumnMapping = MappingType.Hidden;

            while (Convert.ToDateTime(DateRange[0]) <= Convert.ToDateTime(DateRange[1]))
            {
                if (Convert.ToDateTime(DateRange[0]).DayOfWeek != DayOfWeek.Saturday & Convert.ToDateTime(DateRange[0]).DayOfWeek != DayOfWeek.Sunday)
                {

                    DataRow nRow = pDates.NewRow();
                    nRow["Key"] = Convert.ToDateTime(DateRange[0].ToString()).ToShortDateString();
                    nRow["Date"]= Convert.ToDateTime(DateRange[0].ToString()).ToShortDateString();
                    nRow["Worked"] = 0;
                    nRow["Vaction"] = 0;
                    nRow["Sick"] = 0;
                    nRow["Holiday"] = 0;
                    nRow["Error"] = "";

                    pDates.Rows.Add(nRow);

                }

                DateRange[0] = Convert.ToDateTime(DateRange[0]).AddDays(1).ToShortDateString();
            }


            dgvPunchs.DataSource = pDates;
            dgvPunchs.DataBind();
            dgvPunchs.Columns[0].Hidden = true;
        }

您需要在WebDataGrid中手動創建列,如果沒有,則只需檢查columns.count,它將等於0。
因此,您可以在WebDataGrid的init事件中執行此操作(在設置WebDataGrid1.datasource並使WebDataGrid1.autogenertecolumns = false之前):

Infragistics.Web.UI.GridControls.BoundDataField f;    
Infragistics.Web.UI.GridControls.EditingColumnSetting columnSettingReadOnly;

foreach (System.Data.DataColumn c in pDates.Columns)
            {
                    f = new Infragistics.Web.UI.GridControls.BoundDataField(true);
                    f.DataFieldName = c.ColumnName;
                    f.Key = c.ColumnName;
                    f.Header.Text = c.ColumnName;
                    WebDataGrid1.Columns.Add(f);
// In order to set it as readonly:
columnSettingReadOnly = New Infragistics.Web.UI.GridControls.EditingColumnSetting();
                columnSettingReadOnly.ColumnKey = f.Key;
                columnSettingReadOnly.ReadOnly = True;
                WebDataGrid1.Behaviors.EditingCore.Behaviors.CellEditing.ColumnSettings.Add(columnSettingReadOnly);
            }

嘗試以上,讓我們知道。

PS:不確定顯示復選框的列的問題不允許您對其進行檢查...

我必須將所有列的標記添加到html端。 關閉AutoGenerateColumns,我打開EnableAjaxViewState和EnableDataViewState不確定是否需要這些。 但是通過將其添加到HTML中,我便能夠調用代碼

ig:WebDataGrid ID =“ dgvPunchs” runat =“ server”寬度=“ 800px” DataKeyFields =“ Key” AutoGenerateColumns =“ False” EnableAjaxViewState =“ True” EnableDataViewState =“ True”>

<Columns>
    <ig:BoundDataField DataFieldName="Key" Key="Key">
        <Header Text="Key" />
    </ig:BoundDataField>
    <ig:BoundDataField DataFieldName="Date" Key="Date">
        <Header Text="Date" />
    </ig:BoundDataField>
    <ig:BoundCheckBoxField DataFieldName="Worked" 
        Key="Worked">
        <Header Text="Worked" />
    </ig:BoundCheckBoxField>
    <ig:BoundCheckBoxField DataFieldName="Vaction" 
        Key="Vaction">
        <Header Text="Vaction" />
    </ig:BoundCheckBoxField>
    <ig:BoundCheckBoxField DataFieldName="Sick" 
        Key="Sick">
        <Header Text="Sick" />
    </ig:BoundCheckBoxField>
    <ig:BoundCheckBoxField DataFieldName="Holiday" 
        Key="Holiday">
        <Header Text="Holiday" />
    </ig:BoundCheckBoxField>
    <ig:BoundDataField DataFieldName="Error" Key="Error">
        <Header Text="Error" />
    </ig:BoundDataField>
</Columns>

<Behaviors>
    <ig:EditingCore>
        <Behaviors>
            <ig:CellEditing>
            </ig:CellEditing>
        </Behaviors>
    </ig:EditingCore>
</Behaviors>

dgvPunchs.DataSource = pDates;
dgvPunchs.DataBind();
dgvPunchs.Columns[0].Hidden = true;

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