Question

在将值解析为数据集“GetSubmitDataBy”时，我收到此错误。我从2个下拉列表中获取值，包括状态和集群，以及2个文本框，包括开始日期和结束日期。

protected void Button1_Click(object sender, EventArgs e)
{

    RunTimeDSTableAdapters.tbl_runtime_reportTableAdapter state = new RunTimeDSTableAdapters.tbl_runtime_reportTableAdapter();
    DataTable dt = new DataTable();
    DateTime dt1 = Convert.ToDateTime(TextBox1_CalendarExtender.SelectedDate);
    DateTime dt2 = Convert.ToDateTime(TextBox2_CalendarExtender.SelectedDate);
    dt1.ToString("MM/DD/YYYY");
    dt2.ToString("MM/DD/YYYY");
    dt = state.GetSubmitDataBy(DropDownList1.SelectedValue, dt1, dt2, DropDownList2.SelectedValue);
    GridView1.DataSource = dt;
    GridView1.DataBind();


}

GetSubmitDataBy的签名是：

public virtual RunTimeDS.tbl_runtime_reportDataTable GetSubmitDataBy(string Cluster, string startDate, string endDate, string State) {
            this.Adapter.SelectCommand = this.CommandCollection[2];
            if ((Cluster == null)) {
                this.Adapter.SelectCommand.Parameters[0].Value = global::System.DBNull.Value;
            }
            else {
                this.Adapter.SelectCommand.Parameters[0].Value = ((string)(Cluster));
            }
            if ((startDate == null)) {
                this.Adapter.SelectCommand.Parameters[1].Value = global::System.DBNull.Value;
            }
            else {
                this.Adapter.SelectCommand.Parameters[1].Value = ((string)(startDate));
            }
            if ((endDate == null)) {
                this.Adapter.SelectCommand.Parameters[2].Value = global::System.DBNull.Value;
            }
            else {
                this.Adapter.SelectCommand.Parameters[2].Value = ((string)(endDate));
            }
            if ((State == null)) {
                this.Adapter.SelectCommand.Parameters[3].Value = global::System.DBNull.Value;
            }
            else {
                this.Adapter.SelectCommand.Parameters[3].Value = ((string)(State));
            }
            RunTimeDS.tbl_runtime_reportDataTable dataTable = new RunTimeDS.tbl_runtime_reportDataTable();
            this.Adapter.Fill(dataTable);
            return dataTable;
        }
    }
}

Answer 1

dt1.ToString("MM/DD/YYYY");
dt2.ToString("MM/DD/YYYY");

什么都不做！你必须改正行

dt = state.GetSubmitDataBy(DropDownList1.SelectedValue.ToString(), dt1.ToString("MM/DD/YYYY"), dt2.ToString("MM/DD/YYYY"), DropDownList2.SelectedValue.ToString());

表（字符串，字符串，字符串，字符串）'的最佳重载方法匹配具有一些无效参数

1 个答案: