Pass ASP.Net Web Form controls value to another page in C# and VB.Net

Hi muhammad12,

You need to make use of Session to send the details.

First create a class having required properties.

Then in the Print Button click, create an object of the class and set the properties from the controls value.

Finally, set the class object in Session and access in other page.

Refer below exampple.

Property Class

C#

public class Dispatch
{
    public string Name { get; set; }
    public string PO { get; set; }
    public string ItemName { get; set; }
    public string Quantity { get; set; }
    public string ConfirmTo { get; set; }
    public string Notes { get; set; }
    public string From { get; set; }
}

VB.Net

Public Class Dispatch
    Public Property Name As String
    Public Property PO As String
    Public Property ItemName As String
    Public Property Quantity As String
    Public Property ConfirmTo As String
    Public Property Notes As String
    Public Property From As String
End Class

HTML

Dispatched

<div class="container">
    <div class="form-row">
        <div class="form-group">
            <label for="DropDownList1">To:</label>
            <asp:DropDownList ID="DropDownList1" runat="server">
                <asp:ListItem Value="">Please Select</asp:ListItem>
                <asp:ListItem>muhammad</asp:ListItem>
                <asp:ListItem>Abdullah</asp:ListItem>

            </asp:DropDownList>
        </div>
        <div class="form-group">
            <label for="TextBox1">PO#:</label>
            <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        </div>
    </div>
    <div class="form-row">
        <div class="form-group">
            <label for="TextBox2">Item Name:</label>
            <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
        </div>
        <div class="form-group">
            <label for="TextBox3">Quantity:</label>
            <asp:TextBox ID="TextBox3" runat="server" TextMode="Number"></asp:TextBox>
        </div>
    </div>
    <div class="form-row">
        <div class="form-group">
            <label for="TextBox4">Confirm To:</label>
            <asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>
        </div>
    </div>
    <div class="form-row">
        <div class="form-group">
            <label for="TextArea1">Notes:</label>
            <textarea id="TextArea1" runat="server" rows="4"></textarea>
        </div>
    </div>
    <div class="form-row">
        <div class="form-group">
            <label for="DropDownList2">From:</label>
            <asp:DropDownList ID="DropDownList2" runat="server">
                <asp:ListItem Value="">Please Select</asp:ListItem>
                <asp:ListItem>abnc</asp:ListItem>
                <asp:ListItem>xyz</asp:ListItem>
            </asp:DropDownList>
        </div>
    </div>
    <div class="button-container">
        <asp:Button ID="Button1" runat="server" Text="Print" OnClick="OnPrint" CssClass="btn-print" />
    </div>
</div>

Print

Name: <asp:Label ID="lblName" runat="server" /><br />
#PO: <asp:Label ID="lblPO" runat="server" /><br />
Item: <asp:Label ID="lblItemName" runat="server" /><br />
Quantity: <asp:Label ID="lblQuantity" runat="server" /><br />
Confirm To:<asp:Label ID="lblConfirmTo" runat="server" /><br />
Notes: <asp:Label ID="lblNotes" runat="server" /><br />
From: <asp:Label ID="lblFrom" runat="server" />

Code

Dispatched

C#

protected void OnPrint(object sender, EventArgs e)
{
    Dispatch dispatch = new Dispatch();
    dispatch.Name = DropDownList1.SelectedItem.Text;
    dispatch.PO = TextBox1.Text;
    dispatch.ItemName = TextBox2.Text;
    dispatch.Quantity = TextBox3.Text;
    dispatch.ConfirmTo = TextBox4.Text;
    dispatch.Notes = TextArea1.InnerText;
    dispatch.From = DropDownList2.SelectedItem.Text;
    Session["Dispatch"] = dispatch;
    Response.Redirect("~/Print.aspx");
}

VB.Net

Protected Sub OnPrint(ByVal sender As Object, ByVal e As EventArgs)
    Dim dispatch As Dispatch = New Dispatch()
    dispatch.Name = DropDownList1.SelectedItem.Text
    dispatch.PO = TextBox1.Text
    dispatch.ItemName = TextBox2.Text
    dispatch.Quantity = TextBox3.Text
    dispatch.ConfirmTo = TextBox4.Text
    dispatch.Notes = TextArea1.InnerText
    dispatch.From = DropDownList2.SelectedItem.Text
    Session("Dispatch") = dispatch
    Response.Redirect("~/Print.aspx")
End Sub

Print

C#

protected void Page_Load(object sender, EventArgs e)
{
    Dispatch dispatch = (Dispatch)Session["Dispatch"];
    lblName.Text = dispatch.Name;
    lblPO.Text = dispatch.PO;
    lblItemName.Text = dispatch.ItemName;
    lblQuantity.Text = dispatch.Quantity;
    lblConfirmTo.Text = dispatch.ConfirmTo;
    lblNotes.Text = dispatch.Notes;
    lblFrom.Text = dispatch.From;
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
    Dim dispatch As Dispatch = CType(Session("Dispatch"), Dispatch)
    lblName.Text = dispatch.Name
    lblPO.Text = dispatch.PO
    lblItemName.Text = dispatch.ItemName
    lblQuantity.Text = dispatch.Quantity
    lblConfirmTo.Text = dispatch.ConfirmTo
    lblNotes.Text = dispatch.Notes
    lblFrom.Text = dispatch.From
End Sub

Screenshots

Dispatched

Print