Run RegisterStartupScript multiple times in c#

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C#

Javascript

Good day Everyone,

The following is part of my code

//start code
protected void Button1_Click(object sender, EventArgs e)
{
ScriptManager.RegisterStartupScript(this.Page, this.GetType(), "temp", "<script>loadAdditionalInfoDialog(info1)</script>",false);

ScriptManager.RegisterStartupScript(this.Page, this.GetType(), "temp2", "<script>loadAdditionalInfoDialog(info2)</script>",false);
}
//end of code

The loadAdditionalInfoDialog() function will prompt a small window and let user to key in some info and then click on "OK" button to proceed to next step.

But, when I click on Button1, I can only see the secoond RegisterStartupScript, which is loadAdditionalInfoDialog(info2) works, it will prompt the small window, and I can key in some info and click on "OK" button to proceed to next step.

Because of this, I CAN NOT enter info for the first RegisterStartupScript, which is loadAdditionalInfoDialog(info1).

Would like to ask for solution which is, when I click on Button1, I can first enter info for loadAdditionalInfoDialog(info1) and then click on "OK" button, then continue enter info for loadAdditionalInfoDialog(info2).

Thousand of thanks.

Improve question here (code for loadAdditionalInfoDialog() in front page: )

// start javascript code
<script>
function loadAdditionalInfoDialog(info)
{
if (info == "")
alert("Please fill in quantity");
}
else
document.getElementById("<%=btn3InfoRefresh.ClientID %>").click();

</script>
// end of code

// start btn3InfoRefresh code

protected void btn3InfoRefresh_Click(object sender, EventArgs e)
    {
        ucForm.ProductID = int.Parse(hid3InfoProductID.Value);
        ucForm.Values.Clear();
        ScriptManager.RegisterStartupScript(this.Page, this.GetType(), "temp"+i, "<script>showAdditionalInfoDialog();</script>", false);
    }

// end of code

The showAdditionalInfoDialog() is a function to pop out a window to let user key in information and click ok "OK" button to proceed to next step.

// start showAdditionalInfoDialog code

function showAdditionalInfoDialog()
            {
                document.getElementById("<%=divAdditionalInfo.ClientID %>").style.visibility = "visible";
                document.getElementById("<%=divAdditionalInfo.ClientID %>").style.display = "table-cell";
            }

// end of code

I will do some improvement on my question because it make people confuse.

Actually the Button1_Click is just a button I create to do testing.
In fact, I only will call the loadAdditionalInfoDialog() when I get data in a Repeater :

protected void btnRedeemAll_Click(object sender, EventArgs e)
    {
		foreach( RepeaterItem itm in repGiftResults.Items )
        {
			/*
			code to get all those parameter
			*/
			if (pr.AdditionalFieldsEnabled == true)
                    {
						ScriptManager.RegisterStartupScript(this.Page, this.GetType(), "temp", "<script>loadAdditionalInfoDialog(1," + pr.ID + "," + giftId + ",'" + txtQty.ClientID + "'," + tokenId + ")</script>", false);
						
					}
		}
	}

Thus, I think it is hard for me to call the second time loadAdditonalInfoDialog() when I click on "OK" button, because I need to get many parameter in the repeater.