Bootstrap Modal Popup

2019-09-16 20:09发布

站内问答 / C#
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I have a bootstrap modal popup that has bound data to the asp.net dropdown ( inside the modal ). Now I want to save the selected value into database. My problem is the selected value of the dropdown is not getting passed in the aspx.cs (code behind ) page.

2条回答
走好不送
2楼-- · 2019-09-16 20:55

Where you bind dropdown in page load method? write code as below in aspx.cs

private void Page_Load()
    {
        if (!IsPostBack)
        {
            // dropdown bind code
            // OR
            // call dropdown bind function eg. bindDropdown();        
        }
    }

There is no issue in model popup of bootstrap.

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3楼-- · 2019-09-16 20:57

It's hard to say what the problem might be because you haven't posted any code in your question so here is a complete working example of a DropDownList control inside a Bootstrap modal popup, hope it helps you.

Code behind:

protected void Page_Load(object sender, EventArgs e)
{
    if(!Page.IsPostBack)
    {
        ddlFood.Items.Add(new ListItem { Text = "Fruits", Value = "1" });
        ddlFood.Items.Add(new ListItem { Text = "Vegetables", Value = "2" });
        ddlFood.Items.Add(new ListItem { Text = "Meat", Value = "3" });
    }
}

protected void btnDone_Click(object sender, EventArgs e)
{
    System.Diagnostics.Debugger.Break();
    string favFood = ddlFood.SelectedItem.Text;
}

.ASPX:

<head runat="server">
    <title></title>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.3/jquery.min.js"></script>
    <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
    <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
</head>
<body>
    <form id="form1" runat="server">
        <button type="button" data-toggle="modal" data-target="#myModal">Launch modal</button>
        <div id="myModal" class="modal fade">
            <div class="modal-dialog">
                <div class="modal-content">
                    <div class="modal-header">
                        <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
                        <h4 class="modal-title" id="myModalLabel">Modal Header</h4>
                    </div>
                    <div class="modal-body">
                        Please select your favourite food group:<br />
                        <asp:DropDownList ID="ddlFood" runat="server"></asp:DropDownList><br />
                        <asp:Button ID="btnDone" runat="server" Text="Done" OnClick="btnDone_Click" />
                    </div>
                    <div class="modal-footer">
                        <button type="button" class="btn btn-primary" data-dismiss="modal">Close</button>
                    </div>
                </div>
            </div>
        </div>
    </form>
</body>
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