How to get html elements value in asp.net?

Question

I'm trying to add a new seller into database but all the values i get from the input text are null

this is the form

<div class="mb-3">
                <label for="SNameTb" class="form-label">Seller FirstName</label>
                <input type="text" class="form-control" id="Snametb" runat="server">
            </div>

And this how i'm trying to get the values

string Sname = Snametb.Value;

runat="server" implies web forms, and if that's true you want to use an <asp:TextBox instead of an <input type="text" element. It also matters quite a bit where that second code snippet is located. — Joel Coehoorn
– Joel Coehoorn, Commented May 24, 2022 at 19:15
@JoelCoehoorn You can use <input type="text" runat="server" /> in WebForms - it just means the runtime type is System.Web.UI.HtmlControls.HtmlInputText instead of WebControls.TextBox. — Dai
– Dai, Commented May 24, 2022 at 19:49
There isn't anything immediately wrong with the code you've posted - we need to see more to be able to tell you what's going on. Have you done a full rebuild and/or nuked your obj directory? — Dai
– Dai, Commented May 24, 2022 at 19:50

Josef · Accepted Answer · 2022-09-01 11:44:16Z

2

You missing the closing "/> in that input box.

So, this:

<div class="mb-3">
    <label for="SNameTb" class="form-label">Seller FirstName</label>
    <input type="text" class="form-control" id="Snametb" runat="server" value="" />
</div>

<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />

and button click code:

protected void Button1_Click(object sender, EventArgs e)
{
    Debug.Print("Text box value = " + Snametb.Value);
}

So, add the "/>" to your markup (maybe a cut+paste issue).

And not required, but good idea to add the value="" attribute also.

edited Sep 1, 2022 at 11:44

Josef

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answered May 25, 2022 at 1:49

Albert D. Kallal

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Comments

desertnaut · Accepted Answer · 2022-09-01 22:35:18Z

0

add runat= 'server' to the text input

edited Sep 1, 2022 at 22:35

desertnaut

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answered Sep 1, 2022 at 9:56

Mohamed El-sharkawy

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