Windows Forms: CRUD Web Service Call Function In C#

Creating a simple Windows Forms allows you to insert update delete data from web service.

How to use a Web Service in Windows Form

C# web service crud operations with entity framework

First, You need to create a simple web service allows you to get, insert, update, delete data from sql server. If you don't know, you can see this post to know How to Create a Web Service in C#.

Press F5 to run your web service, then open Developer Command Promt for VS 2019 or 2017

Entering the command below to generate your web service to class.

wsdl /language:cs https://localhost:[port]/PaymentService.asmx

Copying the class you just generated into your winform project, then add a reference to System.Web.Services.dll

How to call web service in c# desktop application

Rebuilding your project, then add a bindingsource to the DataGridView to Payment class.

Declaring a PaymentService allows you to call your web service.

PaymentService payment;

Adding a Load event handler to your form allows you to call GetAll method from web service.

private void frmPayment_Load(object sender, EventArgs e)
{
    payment = new PaymentService();
    paymentBindingSource.DataSource = payment.GetAll();
}

Call web service c# with parameters

Adding a click event handler to the Insert button allows you to insert data to web service.

private void btnInsert_Click(object sender, EventArgs e)
{
    payment.Insert(txtFullName.Text, Convert.ToDecimal(txtAmount.Text), txtNote.Text);
    Clear();
    paymentBindingSource.DataSource = payment.GetAll();
}

Adding a click event handler to the Update button allows you to call Update method from web service to update data.

private void btnUpdate_Click(object sender, EventArgs e)
{
    paymentBindingSource.EndEdit();
    Payment obj = paymentBindingSource.Current as Payment;
    if (obj != null)
    {
        payment.Update(obj.Id, obj.FullName, obj.Amount ?? 0, obj.Note);
        Clear();
        paymentBindingSource.DataSource = payment.GetAll();
    }
}

Adding a Clear method allows you to clear textbox data.

void Clear()
{
    txtFullName.Text = string.Empty;
    txtAmount.Text = string.Empty;
    txtNote.Text = string.Empty;
}

Adding a click event handler to the Delete button allows you to call Delete method from web service.

private void btnDelete_Click(object sender, EventArgs e)
{
    Payment obj = paymentBindingSource.Current as Payment;
    if (obj != null)
    {
        if (MessageBox.Show("Are you sure want to delete this record?", "Message", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
        {
            payment.Delete(obj.Id);
            Clear();
            paymentBindingSource.DataSource = payment.GetAll();
        }
    }
}

Through this c# consume soap web service example, i showed you how to consume web service in windows application c#.