CheckBox how implement

Question

I have a Matrix and a column CheckBox, the checkBox and UserDataSources are added according to results of the Matrix... but in setBound() instruction, the "General Failure" error occurs:
            Form oForm = oConnection.App.Forms.Item("F60006");
            Matrix mtx = oForm.Items.Item("mtxResult").Specific;
            Column col = mtx.Columns.Item("Col_CheckB");
            //a datasource foreach checkbox
            for (int i = 1; i <= col.Cells.Count; i++)
                string dts = "dts" + i;
                oForm.DataSources.UserDataSources.Add(dts, BoDataType.dt_SHORT_TEXT, 1);
                CheckBox chk = col.Cells.Item(i).Specific;
                chk.ValOff = "N";
                chk.ValOn = "Y";
                chk.DataBind.SetBound(true, "", dts);//General Failure error...
I have tried to add a DataSource because the checkBox dont work correctly, i need to select lines in the matrix with CheckBox. the code to make this:
               //select all lines (works without datasources on code commenting to add datasource in the checkbox)
               for (int i = 1; i <= col.Cells.Count; i++ )
                    CheckBox chk = col.Cells.Item(i).Specific;
                    chk.Checked = true;
this code selects only one checkBox instead of all, in this case the last checkBox are checked. I believe that dont work without datasources (are correct!? checkBoxes need datasources to run properly???)

Answer 1

Hi,
your sugestion has been good!
We have to add a datasource in a column to work properly the checkBox column:
adding a datasource...
    Form oForm = (Form)oConnection.App.Forms.GetForm("F60006", 0);
    Column col = ((Matrix)oForm.Items.Item("mtxResult").Specific).Columns.Item("Col_CheckB");
    string dts = "dtsChk";
    oForm.DataSources.UserDataSources.Add(dts, BoDataType.dt_SHORT_TEXT, 1);
    col.DataBind.SetBound(true, "", "dtsChk");
selecting all rows of the matrix(whith datasource)...
    for (int i = 1; i <= col.Cells.Count; i++ )
        CheckBox chk = col.Cells.Item(i).Specific;
        chk.Checked = true;
Thankyou to all!!!