private void GetDatabyDate_Project() { if (ddlProjectFrom.SelectedValue != "Select" && ddlProjectTo.SelectedValue != "Select" && txtDateFrom.Text == "" && txtDateTo.Text == "") { objWorkFlow = new WorkFlow(); objWorkFlow.ProjectFrom = ddlProjectFrom.SelectedValue; objWorkFlow.ProjectTo = ddlProjectTo.SelectedValue; DataTable dtbyProj = objWorkFlow.GetPreOrderData_byProject(); gvData.DataSource = dtbyProj; gvData.DataBind(); } else if (ddlProjectFrom.SelectedValue == "Select" && ddlProjectTo.SelectedValue == "Select" && txtDateFrom.Text != "" && txtDateTo.Text != "") { objWorkFlow = new WorkFlow(); objWorkFlow.DateFrom = txtDateFrom.Text; objWorkFlow.DateTo = txtDateTo.Text; DataTable dtbyProj = objWorkFlow.GetPreOrderData_byDate(); gvData.DataSource = dtbyProj; gvData.DataBind(); } else if (ddlProjectFrom.SelectedValue != "Select" && ddlProjectTo.SelectedValue != "Select" && txtDateFrom.Text != "" && txtDateTo.Text != "") { objWorkFlow = new WorkFlow(); objWorkFlow.DateFrom = txtDateFrom.Text; objWorkFlow.DateTo = txtDateTo.Text; objWorkFlow.ProjectFrom = ddlProjectFrom.SelectedValue; objWorkFlow.ProjectTo = ddlProjectTo.SelectedValue; DataTable dtbyProj = objWorkFlow.GetPreOrderData_byDate_Project(); gvData.DataSource = dtbyProj; gvData.DataBind(); } else { GetData(); } }