Response.Redirect(Request.RawUrl) in vb.netRSS

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Last post Feb 08, 2019 02:30 AM by Wei Zhang

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shsu
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Response.Redirect(Request.RawUrl) in vb.net

Feb 07, 2019 06:16 AM|shsu|LINK

In page load, Button.text is YES

In button click event, I used

Button.text ="NO"

Response.Redirect(Request.RawUrl)

I want the text of a button to change in to "NO" form YES, Once the button is clicked.

Now it is not happening as the Response.Redirect(Request.RawUrl) is going through the page load again. How can I solve this. Appreciate the Help
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PatriceSc
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Re: Response.Redirect(Request.RawUrl) in vb.net

Feb 07, 2019 09:01 AM|PatriceSc|LINK

Hi,

Just delete this Response.Redirect(Request.RawUrl). You are showing the same page again but with a GET again putting the page to its initial state. Just let the POST to happen and show the page again.
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shsu
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Re: Response.Redirect(Request.RawUrl) in vb.net

Feb 07, 2019 09:32 AM|shsu|LINK

If I didn't place Response.Redirect(Request.RawUrl), then ,Status of the form is not changing upon clicking Submit.

Once submit clicked some functions are happening and the Status of Form is changing in to Pending. Response.Redirect(Request.RawUrl) helps me to show the updated status of the form.
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mgebhard
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Re: Response.Redirect(Request.RawUrl) in vb.net

Feb 07, 2019 01:50 PM|mgebhard|LINK
shsu

In page load, Button.text is YES

In button click event, I used

Button.text ="NO"

Response.Redirect(Request.RawUrl)

I want the text of a button to change in to "NO" form YES, Once the button is clicked.

Now it is not happening as the Response.Redirect(Request.RawUrl) is going through the page load again. How can I solve this. Appreciate the Help

This is pretty basic stuff... simply send a query string value in the URL.
```
Response.Redirect(Request.RawUrl & "?buttonText=No") 
```
Read the value in the Page_Load and set the button text.
```
Dim ButtonText As String = Request.QueryString("buttonText")
theButton.Text = ButtonText 
```
I recommend learning ASP.NET state management fundamentals.
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PatriceSc
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Re: Response.Redirect(Request.RawUrl) in vb.net

Feb 07, 2019 02:07 PM|PatriceSc|LINK

Using redirect causes the page to be shown with a GET request and is precisely intended to show the page again using its "default" state.

What if I close the browser and come on the same page tomorrow ? The button should be still "YES" ? If confirmed it seems "NO" should not be the initial value for this button but depends rather on some data found inside your db...

Wei Zhang

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Re: Response.Redirect(Request.RawUrl) in vb.net

Feb 08, 2019 02:30 AM|Wei Zhang|LINK

Hi shsu,

According to your description, If you use Response. redirect, the program will just do the page redirect first,so there is nothing changed to button. To realize your requirement, I suggest you to use window.location in code behind.Here is the demo , I hope it could help you.

Aspx:

<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <asp:Button ID="Button1" runat="server" Text="NO" OnClick="Button1_Click" />
        </div>
    </form>
</body>
</html>

aspx.vb

Public Class WebForm1
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

    End Sub

    Protected Sub Button1_Click(sender As Object, e As EventArgs)
        Button1.Text = "Yes"
        ClientScript.RegisterStartupScript(Me.GetType(), " ", "window.location.replace('Default.aspx')", True)
    End Sub
End Class

It shows as below:

Best Regards

Wei Zhang

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