Alert + text box value

[vvvv]

Hi,
I give a scriptmanager alert message in a form if the textboxes I create using javascript are empty and return the page. It works fine by keeping all the values of all other fields except the value of one radtextbox value and upon click of ok in the alert box it displays the values back. Why does that happen?

Thanks

[Shinu]

Hi,

Please have a look into the sample code snippet which works fine at my end.

ASPX:

<telerik:RadTextBox ID="RadTextBox1" runat="server">
</telerik:RadTextBox>
<telerik:RadButton ID="RadButton1" runat="server" Text="ShowValue" OnClick="RadButton1_Click">
</telerik:RadButton>

C#:

protected void RadButton1_Click(object sender, EventArgs e)
{
    string script = "function f(){alertValue('" + RadTextBox1.Text + "'); Sys.Application.remove_load(f);}Sys.Application.add_load(f);";
    ScriptManager.RegisterStartupScript(Page, Page.GetType(), "key", script, true);
}

JavaScript:

<script type="text/javascript">
    function alertValue(value) {
        alert(value);
        $find("RadTextBox1").set_value("");
    }
</script>

Please provide your code if it doesn't help.
Thanks,
Shinu.

[vvvv]

Thanks for replying back Shinu.
Here is the code where I handle the validation for textboxes I generate through Javascript. rtAdditionalInformation is the radtextbox which is not holding the value when the alert pops up. But the value is shown after the "ok" button of alert box is clicked. Thanks

 <telerik:RadTextBox ID="rtAdditionalInformation" runat="server" TextMode="MultiLine"
                    Rows="4" Columns="25">
                </telerik:RadTextBox>


aspx.cs
======
for (int i = 0; i < textboxvaluesLength; i++)
                    {
                        if (textboxvalues[i].Length <= 0)
                        {
                            ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "alertMessage", "alert('Please enter a timeslot or remove the textbox')", true);
                            return;
                        }
                        else
                        {
                            textboxvalues[i] = textboxvalues[i].Substring(0, textboxvalues[i].Length - 3);
                        }
}
 addInfo = rtAdditionalInformation.Text;

[Shinu]

Hi,

Please have a look into the following code snippet which works fine at my end.

C#:

protected void RadButton1_Click(object sender, EventArgs e)
{
    string value = rtAdditionalInformation.Text;
    string[] textboxvalues = new string[10];
    textboxvalues = value.Split(' ');
    string addInfo = string.Empty;
    for (int i = 0; i < textboxvalues.Length; i++)
    {
        if (textboxvalues[i].Length>= 0)
        {
            ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "alertMessage", "alert('Please enter a timeslot or remove the textbox')", true);
        }
        else
        {
            textboxvalues[i] = textboxvalues[i].Substring(0, textboxvalues[i].Length - 3);
        }
    }
    addInfo = rtAdditionalInformation.Text;
}

Thanks,
Shinu.

[Singh]

thanks for code fine work