xml software

8/14/2019 XML Software

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XML-Based Applications: College Park

Auto-ShopIntroduction

As always mentioned, XML provides the ability to store information as regular text sothat the same information can be accessed from completely independent applications.This provides tremendous opportunities in the areas of storage and sharing of data. Tomake it even more useful, the .NET Framework provides full support for the DocumentObject Model (DOM) of XML through various classes.

In this exercise, we are going to create an application used by a car repair business.To use it, an employee of the business can open a form to process a customer's work

order. During this, the employee can enter the customer, the information about the carto be fixed, and a text description of the problem.

Practical Learning: Starting the Exercise

1. Start Microsoft Visual C# and create a new Windows Forms Application named

CPAS2

2. To add another form, on the main menu, click Project -> Add Windows Form...

3. Set the Name to InfoCenter and click Open

4. To create a data set, in the Toolbox, click the Data button, then click DataSet,and click the form

5. In the Add Dataset dialog box, click the Untyped dataset radio button

6. Click OK7. While the new dataSet1 button is selected, in the Properties window, set its

(Name) to dsWorkorders and set its DataSetName to Workorders


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8. To create the necessary structure of a work order, while the DataSet object is stillselected, in the Properties window, click Tables and click its ellipsis button

9. In the Tables Collection Editor, click Add

10.Set the (Name) to tblWorkorder and set the TableName to Workorder

11.Set its Modifiers to Public12. To create the columns, in the Workorder Properties section, click Columns and

click its ellipsis button

13. In the Columns Collection Editor, click Add

14.Set the properties as follows:

(Name): colCustomerNameColumnName: CustomerName

Modifiers: Public

15. In the same way, create the other columns as follows:

(Name) ColumnName DataType Modifiers

colCustomerName CustomerName System.String Public

colAddress Address System.String Public

colCity City System.String Public

colState State System.String Public

colZIPCode ZIPCode System.String Public

colMake Make System.String Public

colModel Model System.String Public

colCarYear CarYear System.String Public

colProblem Problem System.String Public

colPartName1 PartName1 System.String Public

colUnitPrice1 UnitPrice1 System.Double Public

colQuantity1 Quantity1 System.Int16 Public

colSubTotal1 SubTotal1 System.Double Public

















colJobPerformed1 JobPerformed1 System.String Public

colJobPrice1 JobPrice1 System.Double Public



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colTotalParts TotalParts System.Double Public

colTotalLabor TotalLabor System.Double Public

colTaxRate TaxRate System.Double Public

colTaxAmount TaxAmount System.Double Public

colTotalOrder TotalOrder System.Double Public

colRecommendations Recommendations System.Double Public

16.Click Close twice


18. In the Templates list, click Windows Form (.NET)

19.Set the Name to NewWorkorder and click Open

20.Design the form as follows:


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Control Name Text Other Properties

GroupBox Customer and Car Information

Label Customer Name:

TextBox txtCustomerName

Label Address

TextBox txtAddress

Label City:

TextBox txtCity

Label State:

TextBox txtState

Label ZIP Code:

TextBox txtZIPCode TextAlign: Right

Label Make / Model:

TextBox txtMake

TextBox txtModel

Label Year:

TextBox txtCarYear TextAlign: Right

Label Problem Description:

TextBox txtProblem

GroupBox Parts Used

Label Part Name

Label Unit Price

Label Qty

Label Sub Total

TextBox txtPartName1TextBox txtUnitPrice1 0.00 TextAlign: Right

TextBox txtQuantity1 0 TextAlign: Right

TextBox txtSubTotal1 0.00TextAlign: RightEnabled: False

TextBox txtPartName2

TextBox txtUnitPrice2 0.00 TextAlign: Right


TextBox txtSubTotal2 0.00TextAlign: Right

Enabled: False










TextBox txtUnitPrice5 0.00 TextAlign: RightTextBox txtQuantity5 0 TextAlign: Right


GroupBox Jobs Performed

Label Price

TextBox txtJobPerformed1


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21.Save all

22. Press Ctrl + A to select everything

23. Press Ctrl + C to copy everything


25. In the Templates list, click Windows Form (.NET)

26.Set the Name to Workorders and click Open

27. Enlarge the form as much as possible, then right-click it and click Paste

28.Adjust the design of the form as follows

ex ox x o er orme

TextBox txtJobPrice2 0.00 TextAlign: Right







GroupBox Recommendations to Customer

TextBox txtRecommendationsMultiline: True

ScrollBars: Vertical

GroupBox Order Summary

Button btnCalculateOrder Calculate Order

Label Total Parts:

TextBox txtTotalParts 0.00 TextAlign: Right

Label Total Labor:

TextBox txtTotalLabor 0.00 TextAlign: Right

Label Tax Rate:

TextBox txtTaxRate 7.75 TextAlign: Right

Label %

Label Tax Amount:

TextBox txtTaxAmount 0.00 TextAlign: Right

Label Total Order:

TextBox txtTotalOrder 0.00 TextAlign: Right

Label Order Date:

DateTimePicker dtpOrderDateFormat: CustomCustomFormat: ddddd MMM yyyy

Button btnSaveOrderSave this Order in the AboveDate and Start New One

Button btnResetOrder Reset Order

Button btnPreview Print Preview

Button btnClose Close

FormCancelButton:btnClose


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Control Name Text Other Properties

GroupBox Customer and Car Information

Label Customer Name:

TextBox txtCustomerName

Label Address

TextBox txtAddress

Label City:

TextBox txtCity

Label State:

TextBox txtState

Label ZIP Code:

TextBox txtZIPCode TextAlign: Right

Label Make / Model:

TextBox txtMake

TextBox txtModel

Label Year:

TextBox txtCarYear TextAlign: Right

Label Problem Description:

TextBox txtProblem

GroupBox Parts Used

Label Part Name

Label Unit Price

Label Qty

Label Sub Total






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29.Save all

30.Display the first or main form (Form1.h [Design]) and design it as follows:

Control Name Text

Button btnNewOrder Create New WorkorderButton btnOpenOrders Open Previous Workorders

Button btnClose Close

31.Double-click the Create New Workorder button

32.Return to the form and double-click the Open Previous Workorders button

33.Return to the form and double-click the Close button

34. Implement the Click events as follows:

private void btnNewOrder_Click(object sender, System.EventArgs e)

{NewWorkorder frmOrder = new NewWorkorder();frmOrder.ShowDialog();

}

private void btnOpenOrders_Click(object sender, System.EventArgs e){

Workorders frmOrders = new Workorders();frmOrders.ShowDialog();

}

private void btnClose_Click(object sender, System.EventArgs e){

Close();}

35. Execute the application to test it

Calculating the Order

When a car has been fixed, an employee can complete the form with what was done. A section

of the form allows the employee to enter the names, prices, and quantities of parts that wereused to fix the car. Each part is entered but its name, a unit price, and a quantity; then, a subtotal of each part must be calculated.

Besides the parts used, the employee must also list the types of repairs that were performedand their costs. This also allows the customer to know what was done.

Once the parts information and the jobs performed have been entered, the order can becalculated to know the total the customer will pay.


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Practical Learning: Starting the Exercise

1. Display the New Work Order form. Double-click the Reset Order button andimplement its Click event as follows:

private void btnResetOrder_Click(object sender, System.EventArgs e){

this.txtCustomerName.Text = "";this.txtAddress.Text = "";this.txtCity.Text = "";this.txtState.Text = "";this.txtZIPCode.Text = "";this.txtMake.Text = "";this.txtModel.Text = "";this.txtCarYear.Text = "";this.txtProblem.Text = "";

this.txtPartName1.Text = "";

this.txtUnitPrice1.Text = "0.00";this.txtQuantity1.Text = "0";this.txtSubTotal1.Text = "0.00";this.txtPartName2.Text = "";this.txtUnitPrice2.Text = "0.00";this.txtQuantity2.Text = "0";this.txtSubTotal2.Text = "0.00";this.txtPartName3.Text = "";this.txtUnitPrice3.Text = "0.00";this.txtQuantity3.Text = "0";this.txtSubTotal3.Text = "0.00";this.txtPartName4.Text = "";this.txtUnitPrice4.Text = "0.00";

this.txtQuantity4.Text = "0";this.txtSubTotal4.Text = "0.00";this.txtPartName5.Text = "";this.txtUnitPrice5.Text = "0.00";this.txtQuantity5.Text = "0";this.txtSubTotal5.Text = "0.00";

this.txtJobPerformed1.Text = "";this.txtJobPrice1.Text = "0.00";this.txtJobPerformed2.Text = "";this.txtJobPrice2.Text = "0.00";this.txtJobPerformed3.Text = "";this.txtJobPrice3.Text = "0.00";

this.txtJobPerformed4.Text = "";this.txtJobPrice4.Text = "0.00";this.txtJobPerformed5.Text = "";this.txtJobPrice5.Text = "0.00";

this.txtTotalParts.Text = "0.00";this.txtTotalLabor.Text = "0.00";this.txtTaxRate.Text = "7.75";this.txtTaxAmount.Text = "0.00";this.txtTotalOrder.Text = "0.00";

this.txtRecommendations.Text = "";this.txtCustomerName.Focus();

}2. Double-click the Calculate Order button and implement its Click event as follows:

private void btnCalculateOrder_Click(object sender, System.EventArgs e){


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decimal part1UnitPrice = 0.00M,part1SubTotal = 0.00M,part2UnitPrice = 0.00M,part2SubTotal = 0.00M,part3UnitPrice = 0.00M,part3SubTotal = 0.00M,

part4UnitPrice = 0.00M,part4SubTotal = 0.00M,

part5UnitPrice = 0.00M,part5SubTotal = 0.00M,totalParts = 0.00M;

int part1Quantity = 0, part2Quantity = 0, part3Quantity = 0,part4Quantity = 0, part5Quantity = 0;

decimal job1Price = 0.00M,job2Price = 0.00M,job3Price = 0.00M,job4Price = 0.00M,job5Price = 0.00M;

decimal totalLabor = 0.00M;

decimal taxRate = 0.00M, taxAmount = 0.00M, totalOrder = 0.00M;

// Don't charge a part unless it is clearly identifiedif( this.txtPartName1.Text == "" ){

this.txtUnitPrice1.Text = "0.00";this.txtQuantity1.Text = "0";this.txtSubTotal1.Text = "0.00";part1UnitPrice = 0.00M;

}else{

try

{ part1UnitPrice =decimal.Parse(this.txtUnitPrice1.Text);

}catch(FormatException ){

MessageBox.Show("Invalid Unit Price");this.txtUnitPrice1.Text = "0.00";this.txtUnitPrice1.Focus();

}

try{

part1Quantity =int.Parse(this.txtQuantity1.Text);}catch(FormatException ){

MessageBox.Show("Invalid Quantity");this.txtQuantity1.Text = "0";this.txtQuantity1.Focus();

}}

if( this.txtPartName2.Text == "" ){


}else


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{try{

part2UnitPrice =decimal.Parse(this.txtUnitPrice2.Text);

}

catch(FormatException ){


}

try{

part2Quantity =int.Parse(this.txtQuantity2.Text);

}catch(FormatException )

{ MessageBox.Show("Invalid Quantity");this.txtQuantity2.Text = "0";this.txtQuantity2.Focus();

}}



}else{

try{




}

try{




}}


this.txtUnitPrice4.Text = "0.00";this.txtQuantity4.Text = "0";


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this.txtSubTotal4.Text = "0.00";part4UnitPrice = 0.00M;

}else{

try

{part4UnitPrice =

decimal.Parse(this.txtUnitPrice4.Text);}catch(FormatException ){


}

try{

part4Quantity =int.Parse(this.txtQuantity4.Text);}catch(FormatException ){


}}



}else{

try{


}catch(FormatException )

{ MessageBox.Show("Invalid Unit Price");this.txtUnitPrice5.Text = "0.00";this.txtUnitPrice5.Focus();

}

try{




}}


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// Don't bill the customer for a job that is not specifiedif( this.txtJobPerformed1.Text == "" ){

this.txtJobPrice1.Text = "0.00";job1Price = 0.00M;

}

else{

try{

job1Price =decimal.Parse(this.txtJobPrice1.Text);


MessageBox.Show("Invalid Job Price");this.txtJobPrice1.Text = "0.00";this.txtJobPrice1.Focus();

}

} if( this.txtJobPerformed2.Text == "" ){


}else{

try{




}}

if( this.txtJobPerformed3.Text == "" ){


}else{

try{




}}


this.txtJobPrice4.Text = "0.00";


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job4Price = 0.00M;}else{

try{




}}


this.txtJobPrice5.Text = "0.00";job5Price = 0.00M;}else{

try{



MessageBox.Show("Invalid Job Price");

this.txtJobPrice5.Text = "0.00";this.txtJobPrice5.Focus();}

}

part1SubTotal = part1UnitPrice * part1Quantity;part2SubTotal = part2UnitPrice * part2Quantity;part3SubTotal = part3UnitPrice * part3Quantity;part4SubTotal = part4UnitPrice * part4Quantity;part5SubTotal = part5UnitPrice * part5Quantity;

this.txtSubTotal1.Text = part1SubTotal.ToString("F");this.txtSubTotal2.Text = part2SubTotal.ToString("F");

this.txtSubTotal3.Text = part3SubTotal.ToString("F");this.txtSubTotal4.Text = part4SubTotal.ToString("F");this.txtSubTotal5.Text = part5SubTotal.ToString("F");

totalParts = part1SubTotal + part2SubTotal + part3SubTotal +part4SubTotal + part5SubTotal;

totalLabor = job1Price + job2Price + job3Price +

job4Price + job5Price;

try{

taxRate = decimal.Parse(this.txtTaxRate.Text);}catch(FormatException ){

MessageBox.Show("Invalid Tax Rate");this.txtTaxRate.Text = "7.75";this.txtTaxRate.Focus();


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}

decimal totalPartsAndLabor = totalParts + totalLabor;taxAmount = totalPartsAndLabor * taxRate / 100;totalOrder = totalPartsAndLabor + taxAmount;

this.txtTotalParts.Text = totalParts.ToString("F");this.txtTotalLabor.Text = totalLabor.ToString("F");this.txtTaxAmount.Text = taxAmount.ToString("F");this.txtTotalOrder.Text = totalOrder.ToString("F");

}

3. Execute the application to test it and fill the form with a record

4. Click the Calculate Order button

5. Close the form and return to your programming environment

Saving the Customer Order

Once a work order has been completed, it can be saved. There are various ways you cansolve this. One of the easiest ways would consist of saving each order directly in its ownfile. The problem is that this would create too many files, especially if this business issuccessful. Another easy solution would consist of directly saving all orders of onecustomer in a particular file. This is suitable if the business deals with regularly returningcustomers, which is not always the case. Overall, you should provide as much flexibilityas possible. To make our application useful, we will allow the user to save an order to a

file that whose name is after the day this order was placed. We will prompt the user so heor she can change the name of the file if necessary. When saving an order, if there is no

order with that name, we will create a new XML file and store the order in it. If a filealready exists under that name, then we will add the current order as part of the file. Thatway, all orders of a certain date can be saved in the same file, making it possible toretrieve the list of repairs that were completed on a certain day.]

Practical Learning: Saving a Work Order

1. Display the New Workorder form (NewWorkorder.cs [Design]))

2. Double-click the Save this Order button

3. In the top section of the file, under the other using lines, type the following:

using System;using System.Drawing;using System.Collections;

using System.ComponentModel;using System.Windows.Forms;using System.Data;using System.IO;using System.Xml;

4. Implement the event as follows:


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private void btnSaveOrder_Click(object sender, System.EventArgs e){

// Get the date that the Order Date displaysDateTime tmeToday = this.dtpOrderDate.Value;int day = tmeToday.Day;int month = tmeToday.Month;

int year = tmeToday.Year;string[] strMonth = { "Jan", "Feb", "Mar", "Apr",

"May", "Jun", "Jul", "Aug","Sep", "Oct", "Nov", "Dec" };

string strFilename = day.ToString() +strMonth[month-1] +

year.ToString() + ".xml";

// Get a reference to the Data Center because// that's where the DataSet object residesInfoCenter frmData = new InfoCenter();

// If the file exists already, open it

if( File.Exists(strFilename) )frmData.dsWorkorders.ReadXml(strFilename);

// Create a new record for the Workorder tableDataRow rowNewOrder =

frmData.dsWorkorders.Tables["Workorder"].NewRow();

rowNewOrder["CustomerName"] =this.txtCustomerName.Text;

rowNewOrder["Addres"] = this.txtAddress.Text;rowNewOrder["City"] = this.txtCity.Text;rowNewOrder["State"] = this.txtState.Text;rowNewOrder["ZIPCode"] = this.txtZIPCode.Text;

rowNewOrder["Make"] = this.txtMake.Text;rowNewOrder["Model"] = this.txtModel.Text;rowNewOrder["CarYear"] = this.txtCarYear.Text;rowNewOrder["Problem"] = this.txtProblem.Text;

rowNewOrder["PartName1"] = this.txtPartName1.Text;rowNewOrder["UnitPrice1"] = this.txtUnitPrice1.Text;rowNewOrder["Quantity1"] = this.txtQuantity1.Text;rowNewOrder["SubTotal1"] = this.txtSubTotal1.Text;

rowNewOrder["PartName2"] = this.txtPartName2.Text;rowNewOrder["UnitPrice2"] = this.txtUnitPrice2.Text;rowNewOrder["Quantity2"] = this.txtQuantity2.Text;

rowNewOrder["SubTotal2"] = this.txtSubTotal2.Text;



rowNewOrder["PartName5"] = this.txtPartName5.Text;

rowNewOrder["UnitPrice5"] = this.txtUnitPrice5.Text;rowNewOrder["Quantity5"] = this.txtQuantity5.Text;rowNewOrder["SubTotal5"] = this.txtSubTotal5.Text;

rowNewOrder["JobPerformed1"] =this.txtJobPerformed1.Text;


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rowNewOrder["JobPrice1"] = this.txtJobPrice1.Text;rowNewOrder["JobPerformed2"] =

this.txtJobPerformed2.Text;rowNewOrder["JobPrice2"] = this.txtJobPrice2.Text;rowNewOrder["JobPerformed3"] =



this.txtJobPerformed5.Text;rowNewOrder["JobPrice5"] = this.txtJobPrice5.Text;

rowNewOrder["Recommendation"] =this.txtRecommendations.Text;

rowNewOrder["TotalPart"] = this.txtTotalParts.Text;rowNewOrder["TotalLabor"] = this.txtTotalLabor.Text;rowNewOrder["TaxRate"] = this.txtTaxRate.Text;rowNewOrder["TaxAmount"] = this.txtTaxAmount.Text;rowNewOrder["TotalOrder"] = this.txtTotalOrder.Text;

// Add the new record to the AvailableItems table

frmData.dsWorkorders.Tables["Workorder"].Rows.Add(rowNewOrder);

// Update the XML filefrmData.dsWorkorders.WriteXml(strFilename);

// Reset the controls in case the user wants to add

another recordthis.btnResetOrder_Click(sender, e);

}}

5. Execute the application to test it

6. Create a new record then click Calculate Order and save the order

7. Create another order, calculate it and save it

8. Close the form and return to your programming environment

Opening Customers' Orders

It is typical for a business to sell many products on the same way, just as is usualfor a repair business to perform various transactions on the same day. Whenaddressing the ability to save work orders, we allowed the user to save many ordersof a typical day in the same file. In the same way, we will allow the user to open afile that contains all orders placed on a certain day. This would allow themanagement to review daily easily.

Practical Learning: Opening and Reviewing Daily Orders

1. Display the Workorders form

2. In the Data section of the Toolbox, click DataSet and click the form

3. In the Add Dataset dialog box, click the Untyped Dataset radio button and click OK


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4. Change its properties as follows:

(Name): dsDailyOrdersDataSetName: DailyOrders

5. Right-click the form and click View Code

6. In the top section of the file, type the following:

using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;using System.IO;using System.Xml;

7. Return to the form and double-click the Display Orders button

8. Implement the event as follows:

private void btnOpen_Click(object sender, System.EventArgs e){

// Get the date that the Order Date displaysDateTime tmeToday = this.dtpOrderDate.Value;int day = tmeToday.Day;int month = tmeToday.Month;int year = tmeToday.Year;string[] strMonth = { "Jan", "Feb", "Mar", "Apr",

"May", "Jun", "Jul", "Aug","Sep", "Oct", "Nov", "Dec" };string strFilename = day.ToString() +

strMonth[month-1] +year.ToString() +

".xml";// If the file exists already, open itif( File.Exists(strFilename) ){// Get a reference to the object that holds the daily repairs

InfoCenter frmInfo = new InfoCenter();// Empty the local data set of any data. This is required if// we want the user to be able to open different daily sets of

repairsthis.dsDailyOrders.Clear();

// Refresh or initialize the local set with the information

// stored centrallythis.dsDailyOrders = frmInfo.dsWorkorders;

// Open the set of orders placed on the day selecteddsDailyOrders.ReadXml(strFilename);

// Because a control can be bound anew every time the user opens anew set

// Unbind each control to refresh ittxtCustomerName.DataBindings.Clear();txtAddress.DataBindings.Clear();txtCity.DataBindings.Clear();txtState.DataBindings.Clear();

txtZIPCode.DataBindings.Clear();txtMake.DataBindings.Clear();txtModel.DataBindings.Clear();txtCarYear.DataBindings.Clear();txtProblem.DataBindings.Clear();


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txtPartName1.DataBindings.Clear();txtUnitPrice1.DataBindings.Clear();txtQuantity1.DataBindings.Clear();txtSubTotal1.DataBindings.Clear();txtPartName2.DataBindings.Clear();txtUnitPrice2.DataBindings.Clear();

txtQuantity2.DataBindings.Clear();txtSubTotal2.DataBindings.Clear();txtPartName3.DataBindings.Clear();txtUnitPrice3.DataBindings.Clear();txtQuantity3.DataBindings.Clear();txtSubTotal3.DataBindings.Clear();txtPartName4.DataBindings.Clear();txtUnitPrice4.DataBindings.Clear();txtQuantity4.DataBindings.Clear();txtSubTotal4.DataBindings.Clear();txtPartName5.DataBindings.Clear();txtUnitPrice5.DataBindings.Clear();txtQuantity5.DataBindings.Clear();

txtSubTotal5.DataBindings.Clear();txtJobPerformed1.DataBindings.Clear();txtJobPrice1.DataBindings.Clear();txtJobPerformed2.DataBindings.Clear();txtJobPrice2.DataBindings.Clear();txtJobPerformed3.DataBindings.Clear();txtJobPrice3.DataBindings.Clear();txtJobPerformed4.DataBindings.Clear();txtJobPrice4.DataBindings.Clear();txtJobPerformed5.DataBindings.Clear();txtJobPrice5.DataBindings.Clear();txtRecommendations.DataBindings.Clear();txtTotalParts.DataBindings.Clear();

txtTotalLabor.DataBindings.Clear();txtTaxRate.DataBindings.Clear();txtTaxAmount.DataBindings.Clear();txtTotalOrder.DataBindings.Clear();

// Bind each control with data gotten from the newly opened filetxtCustomerName.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.CustomerName")); txtAddress.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.Addres"));txtCity.DataBindings.Add(new System.Windows.Forms.Binding("Text",dsDailyOrders, "Workorder.City"));

txtState.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.State"));

txtZIPCode.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.ZIPCode"));

txtMake.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.Make"));

txtModel.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.Model"));

txtCarYear.DataBindings.Add(new

System.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.CarYear"));txtProblem.DataBindings.Add(new

System.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.Problem"));

txtPartName1.DataBindings.Add(new


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System.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.PartName1"));

txtUnitPrice1.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.UnitPrice1"));

txtQuantity1.DataBindings.Add(new

System.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.Quantity1"));

txtSubTotal1.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.SubTotal1"));

txtPartName2.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.PartName2"));


txtQuantity2.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,

"Workorder.Quantity2"));txtSubTotal2.DataBindings.Add(new

System.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.SubTotal2"));



txtQuantity3.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.Quantity3"));

txtSubTotal3.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.SubTotal3"));




txtSubTotal4.DataBindings.Add(new

System.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.SubTotal4"));txtPartName5.DataBindings.Add(new

System.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.PartName5"));



txtSubTotal5.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,

"Workorder.SubTotal5"));txtJobPerformed1.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.JobPerformed1"));

txtJobPrice1.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,


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"Workorder.JobPrice1"));txtJobPerformed2.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.JobPerformed2"));

txtJobPrice2.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,

"Workorder.JobPrice2"));txtJobPerformed3.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.JobPerformed3"));

txtJobPrice3.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.JobPrice3"));txtJobPerformed4.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.JobPerformed4"));

txtJobPrice4.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.JobPrice4"));

txtJobPerformed5.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.JobPerformed5"));

txtJobPrice5.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.JobPrice5"));txtRecommendations.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.Recommendation"));

txtTotalParts.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.TotalPart"));

txtTotalLabor.DataBindings.Add(new

System.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.TotalLabor"));txtTaxRate.DataBindings.Add(new

System.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.TaxRate"));

txtTaxAmount.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.TaxAmount"));

txtTotalOrder.DataBindings.Add(newSystem.Windows.Forms.Binding("Text", dsDailyOrders,"Workorder.TotalOrder"));

}else // If there is no data, let the user know

MessageBox.Show(String.Concat("No workorderavailable for ", this.dtpOrderDate.Value.ToString()));}}

9. Return to the Workorders form. Double-click the First button and implement

its Click event as follows:

private void btnFirst_Click(object sender, System.EventArgs e){

this.BindingContext[dsDailyOrders, "Workorder"].Position = 0;}

10.Return to the Workorders form. Double-click the Previous button and implement



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private void btnPrevious_Click(object sender, System.EventArgs e){

this.BindingContext[dsDailyOrders, "Workorder"].Position =this.BindingContext[dsDailyOrders,

"Workorder"].Position - 1;}

11.Return to the Workorders form. Double-click the Next button and implement


private void btnNext_Click(object sender, System.EventArgs e){


"Workorder"].Position + 1;}

12.Return to the Workorders form. Double-click the Last button and implement


private void btnLast_Click(object sender, System.EventArgs e){


"Workorder"].Count - 1;}

13.Display the Workorders form and try opening a previously saved order

14.Close the forms

xml software

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