private bool TestDbSource()
        {
            if (string.IsNullOrEmpty(this.TxtDataSource.Text))
            {
                this.TxtTestStat.Text = "请输入正确的代码!";
                return(false);
            }
            string text          = this.TxtDataSource.Text;
            string selectedValue = this.RbtDataType.SelectedValue;

            if (string.Compare(selectedValue, "mdb_read", StringComparison.Ordinal) == 0)
            {
                text          = "Provider=Microsoft.JET.OLEDB.4.0;Data Source=" + GetDbPath(this.TxtDataSource.Text);
                selectedValue = "ole_read";
            }
            if (string.Compare(selectedValue, "xsl_read", StringComparison.Ordinal) == 0)
            {
                text          = "Provider=Microsoft.JET.OLEDB.4.0;Extended Properties=Excel 8.0;Data Source=" + GetDbPath(this.TxtDataSource.Text);
                selectedValue = "ole_read";
            }
            if (LabelManage.TestOutSideDatabase(selectedValue, text))
            {
                this.TxtTestStat.Text = "连接成功!";
                return(true);
            }
            this.TxtTestStat.Text = "连接失败!";
            return(false);
        }