How to create inputbox like Textbox Textchanged event in asp.net

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Hi,

I have a input box for get the student name from user, Which has AutoComplete Extender in Javascript. If I Select any value in that Input box, I have to call some function like textbox textchanged event. How to do it? please help me

That event has following...

if (ddlUserType.SelectedItem.Text.ToUpper() == "STUDENT")
{
    string userType = "STUDENT";

    int DueDays = Math.Abs(Convert.ToInt32(objDA.GetDueDaysForStudentOrStaff(userType, Convert.ToInt32(staffstudent), 0)));
    lblDueDays.Text = DueDays.ToString();
    int IncreaseFineAmount = Convert.ToInt32(lblDueDays.Text) / Convert.ToInt32(lblFineAmtSettings.Text);
    //int IncreaseFineAmount = Convert.ToInt32(lblFineAmtSettings.Text) + Convert.ToInt32(lblDueDays.Text);
    if (IncreaseFineAmount > 0)
    {
        FineAmount = Convert.ToDecimal(txtFineAmount.Text) * Math.Abs(IncreaseFineAmount);
        txtFineAmount.Text = FineAmount.ToString();
    }
    else
        txtFineAmount.Text = hFineAmount.Value;
}
else if (ddlUserType.SelectedItem.Text.ToUpper() == "STAFF")
{
    string userType = "STAFF";
    int DueDays = Math.Abs(Convert.ToInt32(objDA.GetDueDaysForStudentOrStaff(userType, 0, Convert.ToInt32(staffstudent))));
    lblDueDays.Text = DueDays.ToString();
    int IncreaseFineAmount = Convert.ToInt32(lblDueDays.Text) / Convert.ToInt32(lblFineAmtSettings.Text);
    //int IncreaseFineAmount = Convert.ToInt32(lblFineAmtSettings.Text) + Convert.ToInt32(lblDueDays.Text);
    if (IncreaseFineAmount > 0)
    {
        FineAmount = Convert.ToDecimal(txtFineAmount.Text) * Math.Abs(IncreaseFineAmount);
        txtFineAmount.Text = FineAmount.ToString();
    }
    else
        txtFineAmount.Text = hFineAmount.Value;

}

Posted 9-Apr-13 1:44am

UshaCbe

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Comments

ZurdoDev 9-Apr-13 7:47am

I'm confused. Can you show the relevant code and be more specific?

2 solutions

Solution 2

XML

Use this in you javascript

function LinkClicked(lnk)
{

      __doPostBack("<%= txtAssignedUser.ClientID %>");
}

Posted 9-Apr-13 2:22am

TrushnaK

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_Amy · Accepted Answer · 2013-04-09T02:03:00

Solution 1

Call a Javascript function onblur of inputbox.
Javascript:

JavaScript

function doPostBack() 
{
     __doPostBack('', "TextChange");
}

Handle it in PageLoad event and call the specific function whichever you want.
CS:

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (Request.Params.Get("__EVENTARGUMENT") != null)
    {
        if (Request.Params.Get("__EVENTARGUMENT").ToString() == "TextChange")
        {
            MyTextChageFunction();
        }
    }
}
private void MyTextChageFunction()
{
     //Write your logic here..
}

Hope it helps!
--Amit

Posted 9-Apr-13 2:03am

_Amy

Comments

UshaCbe 10-Apr-13 0:39am

Oh my god, That is very nice. Thank you very much. That's Working fine..

_Amy 10-Apr-13 0:47am

Welcome.. :)

UshaCbe 10-Apr-13 0:45am

If you don't mind, Can u explain how it works?

_Amy 10-Apr-13 0:46am

O yes. Read Understanding the JavaScript __doPostBack Function[^].

UshaCbe 10-Apr-13 5:41am

Thank you so much