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equivalent property of valuelist in the new version of webdatagrid
posted

Hi, I upgraded to Infragistics 14.2 and I am trying to initialize a column as a dropdown whose value is coming from a data table. What is the equivalent property of valuelist in the new version of webdatagrid GridField  column?Please help to convert the below code .

After I upgraded I changed the UltraGridColum to GridField. Please help . Thank you!

public void InitCreCAPTCHA challenge imageolumnDropDown(UltraGridColumn col, DataTable dt, string valueColumn, string displayColumn,

object emptyValue, string emptyDisplayValue)

{

if (col == null) throw new ArgumentNullException();

if (dt == null || dt.Columns.Count <= 0) throw new ArgumentNullException();

if (valueColumn == null || valueColumn.Trim().Length <= 0 ||

displayColumn == null || displayColumn.Trim().Length <= 0)

throw new ArgumentNullException();

col.ValueList.Reset();

if (emptyValue != null && emptyDisplayValue != null)

col.ValueList.ValueListItems.Add(emptyValue, emptyDisplayValue);

int id = dt.Columns.IndexOf(valueColumn);

int name = dt.Columns.IndexOf(displayColumn);

foreach (DataRow dr in dt.Rows)

{

col.ValueList.ValueListItems.Add(dr[id], dr[name].ToString());

}

col.ValueList.Style.Font.Name = "Microsoft Sans Serif";

col.ValueList.Style.Font.Size = FontUnit.XXSmall;

col.Type = ColumnType.DropDownList;

}

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  • 2680
    Offline posted

    Hello,

    Thank you for contacting us.

    In order to achieve the same behaviour with WebDataGrid, you should use DropDownProvider for EditorProvider of the specified colum (sample - http://www.infragistics.com/samples/aspnet/data-grid/dropdown-editors). In this case the desired function would look like this:

    public void InitColumnDropDown(WebDropDown dd, DataTable dt, string valueColumn, string displayColumn,
        object emptyValue, string emptyDisplayValue)
    {

        if (dd == null) throw new ArgumentNullException();
        if (dt == null || dt.Columns.Count <= 0) throw new ArgumentNullException();
        if (valueColumn == null || valueColumn.Trim().Length <= 0 ||
         displayColumn == null || displayColumn.Trim().Length <= 0)
            throw new ArgumentNullException();

        if (emptyValue != null && emptyDisplayValue != null)
        {
            DataRow emptyRow = dt.NewRow();
            emptyRow[valueColumn] = emptyValue;
            emptyRow[displayColumn] = emptyDisplayValue;
            dt.Rows.InsertAt(emptyRow, 0);
        }

        dd.DataSource = dt;
        dd.ValueField = valueColumn;
        dd.TextField = displayColumn;
        dd.ValueDisplayType = DropDownValueDisplayType.Simple;
        dd.Font.Name = "Microsoft Sans Serif";
        dd.Font.Size = FontUnit.XXSmall;
    }

    I am attaching a working sample of the described scenario.

    Looking forward to hearing from you.

    DropDownColumn.zip
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