[Solved] Request.Form not working with ASP.Net Master Page

landomar...

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User: landomarossi
Posted: on Sep 25, 2022 10:49 PM
Forum: ASP.Net Web Forms
Answer: 1
Views: 3565
Sample Code: Download

Hi there,

I have an issue that I am trying to get my head around.

I have a project and have created a master page after building most of the project.

I think I have a handle on Master Pages and my test page works perfectly.

I have edited the top line of my content page to include the master page.

I have also taken out all HTML or code parts that are not contained within Content Place Holder.

My Master Page only has my menu information in the <asp:ContentPlaceHolder ID="body" runat="server">.

So if I set up a test.aspx file with the following code it works perfectly.

The Web Form was working perfectly until I added the Master Page code.

When I load the page, the master page is loading correctly and my form appears in the content area as it is suppose to. My validation is also working on the form. So all is well with the form.

But when I now add content in the fields and button Add the program not print the values selected in DropDownList.

Can you help me?

<asp:DropDownList ID="ddlFruits" runat="server">
    <asp:ListItem Text="Please Select" Value="0" />
    <asp:ListItem Text="Mango" Value="1" />
    <asp:ListItem Text="Apple" Value="2" />
    <asp:ListItem Text="Banana" Value="3" />
    <asp:ListItem Text="Orange" Value="4" />
</asp:DropDownList>
<br />
<br />
<asp:Button ID="btnSubmit" Text="Save" runat="server" OnClick="Save" />
<hr />

protected void Save(object sender, EventArgs e)
{
    List<string> value1 = new List<string>();
    foreach (string item in Request.Form)
    {
        if (item.StartsWith("ddlFruits_"))
        {
            value1.Add(Request.Form[item]);
        }
    }
    ClientScript.RegisterStartupScript(this.GetType(), "alert",
        "alert('Selected Fruits:\\n" + string.Join(",", value1) + "');", true);
}

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PrinceG

0 2

Reply
ANSWER
User: PrinceG
Replied: on Sep 26, 2022 01:36 AM
Modified: on Sep 26, 2022 07:28 AM
Report

Hi landomarossi,

You need to use Contains instead of StartsWith method.

Please refer below sample.

Master

<asp:ScriptManager ID="ScriptManager1" EnableScriptGlobalization="true" EnableScriptLocalization="true"
    runat="server">
</asp:ScriptManager>
<div>
    <div>
        <div id="general">
            <div id="header">
                <div id="headerLeft">
                    &nbsp;
                </div>
                <div id="headerRight">
                    &nbsp;
                </div>
                <div class="clear">
                </div>
            </div>
            <div id="login">
                <div id="loginLeft">
                </div>
                <div id="loginCenter">
                    <asp:Label ID="lbWelcome" runat="server">
                    </asp:Label>
                </div>
                <div id="loginRight">
                </div>
                <div class="clear">
                </div>
            </div>
            <br />
            <fieldset>
                <legend style="font-size: 12px; font-weight: bold; color: Red; margin-left: 10px;">WEB
                </legend>
                <br />
                <asp:ContentPlaceHolder ID="ContentPlaceHolder2" runat="server">
                </asp:ContentPlaceHolder>
            </fieldset>
            <div id="footer">
                <div id="footerLeft">
                </div>
                <div id="footerCenter">
                </div>
                <div id="footerRight">
                </div>
            </div>
        </div>
    </div>
</div>

HTML

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
    <script type="text/javascript">
        $(function () {
            $("[id*=btnClone]").bind("click", function () {
                var index = $("#container select").length + 1;
                //Clone the DropDownList
                var ddl1 = $("select[id$=ddl1]").clone();
                var ddl2 = $("select[id$=ddl2]").clone();
                //Set the ID and Name
                ddl1.attr("id", "ddl_" + index);
                ddl1.attr("name", "ddl_" + index);

                ddl2.attr("id", "ddl2_" + index);
                ddl2.attr("name", "ddl2_" + index);

                //[OPTIONAL] Copy the selected value
                $('#container select').each(function () {
                    ddl1.find('option[value="' + $(this).find('option:selected').val() + '"]').remove();
                });

                var selectedValue2 = $("select[id$=ddl2] option:selected").val();
                ddl2.find("option[value = '" + selectedValue2 + "']").attr("selected", "selected");

                //Append to the DIV.
                $("#container").append(ddl1);
                $("#container").append("<br /><br />");
                $("#container").append(ddl2);
                $("#container").append("<br /><br />");
                return false;
            });
        });
    </script>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder2" runat="Server">
    <asp:Panel ID="Panel1" runat="server">
        <fieldset>
            <asp:Panel ID="Panel2" runat="server" HorizontalAlign="Center">
                <div id="container">
                    <div>
                        <asp:DropDownList ID="ddl1" runat="server"
                            BackColor="Yellow"
                            CssClass="pure-u-23-24">
                            <asp:ListItem Text="[ == Please Select == ]" Value="" />
                            <asp:ListItem Text="2022-006" Value="2022-006" />
                            <asp:ListItem Text="2022-007" Value="2022-007" />
                            <asp:ListItem Text="2022-008" Value="2022-008" />
                            <asp:ListItem Text="2022-009" Value="2022-009" />
                            <asp:ListItem Text="2022-010" Value="2022-010" />
                            <asp:ListItem Text="2022-011" Value="2022-011" />
                            <asp:ListItem Text="2022-012" Value="2022-012" />
                            <asp:ListItem Text="2022-013" Value="2022-013" />
                            <asp:ListItem Text="2022-014" Value="2022-014" />
                            <asp:ListItem Text="2022-015" Value="2022-015" />
                        </asp:DropDownList>
                    </div>
                    <br />
                    <div>
                        <asp:DropDownList ID="ddl2" runat="server"
                            BackColor="Yellow"
                            CssClass="pure-u-23-24">
                            <asp:ListItem Text="[ == Please Select == ]" Value="" />
                            <asp:ListItem Text="Child" Value="Child" />
                        </asp:DropDownList>
                    </div>
                    <br />
                    <div>
                        <asp:Button ID="btnClone" Text="Clone" runat="server" /><br />
                        <br />
                        <br />
                    </div>
                </div>
            </asp:Panel>
        </fieldset>
    </asp:Panel>
    <br />
    <asp:Panel ID="Panel3" runat="server" HorizontalAlign="Center">
        <div class="container">
            <asp:ImageButton ID="imgsave" runat="server"
                OnClick="imgsave_Click"
                ImageUrl="~/Img/Tulips.jpg" Height="150px" Width="225px" />
        </div>
    </asp:Panel>
</asp:Content>

Code

protected void imgsave_Click(object sender, ImageClickEventArgs e)
{
    List<string> value1 = new List<string>();
    foreach (string item in Request.Form)
    {
        if (item.Contains("ddl_"))
        {
            value1.Add(Request.Form[item]);
        }
    }
    ClientScript.RegisterStartupScript(this.GetType(), "alert","alert('value1:\\n" + string.Join(",", value1) + "');", true);
}

VB.Net

Protected Sub imgsave_Click(ByVal sender As Object, ByVal e As ImageClickEventArgs)
    Dim value1 As List(Of String) = New List(Of String)()
    For Each item As String In Request.Form
        If item.Contains("ddl_") Then
            value1.Add(Request.Form(item))
        End If
    Next
    ClientScript.RegisterStartupScript(Me.[GetType](), "alert", "alert('value1:\n" & String.Join(",", value1) & "');", True)
End Sub

Screenshot

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[Solved] Request.Form not working with ASP.Net Master Page

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