javaScript for drop down change based on text change

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Hi,

I have one static dropdown. I need to change the value of dropdownon text change event.
The textbox(textPaid) and the drop down(ddlPaymentStatus) are placed inside a grid.
So, please give a javaScript solution to handle this.

Thanks in advance.

Eg: .if the amount is entered in text box() ,then the value in drop down() shld be changed as paid().. the static value of dropdown(open,paid, pending ,advance)

Posted 2-Dec-12 18:54pm

aravindnass

Updated 2-Dec-12 20:21pm

v4

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 3-Dec-12 1:56am

Please post your codes by clicking on "Improve question" link.

aravindnass 3-Dec-12 2:22am

.if the amount is entered in text box() ,then the value in drop down() shld be changed as paid()..here is the static value of dropdown <asp:ListItem Value="4">--Select-- <asp:ListItem Value="0">Open <asp:ListItem Value="1">Paid <asp:ListItem Value="2">Pending <asp:ListItem Value="3">Advance

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 3-Dec-12 2:38am

So, what amount you will enter in the textbox.
Tell me how you want to select the dropdown. I mean what amount will make the dropdown to select the value "paid"?

aravindnass 3-Dec-12 3:21am

if any value enter(on textbox) means it is paid and drop down will change paid..

aravindnass 3-Dec-12 2:07am

haiii...tadit ..I have update my question ..plz see and give me a java script for dropdown changes based on text change in textbox

pradiprenushe 3-Dec-12 2:18am

try my updated answer

pradiprenushe 3-Dec-12 2:09am

Which value you want to select in dropdown? How to understand this.

aravindnass 3-Dec-12 2:19am

heyy...if the amount is entered in text box() ,then the value in drop down() shld be changed as paid()..here is the static value of dropdown

<asp:ListItem Value="4">--Select--
<asp:ListItem Value="0">Open
<asp:ListItem Value="1">Paid
<asp:ListItem Value="2">Pending
<asp:ListItem Value="3">Advance

3 solutions

Solution 2

Solution is:

C#

 protected void ddlPaymentStatus_SelectedIndexChanged(object sender, EventArgs e)
{

        DropDownList ddl = (DropDownList)sender;
        GridViewRow row = (GridViewRow)ddl.NamingContainer;
        int rowIndex = row.RowIndex;
        
        DropDownList DrpLocation1 = (DropDownList)row.FindControl("DrpLocation");
       

        TextBox textPaid1= (TextBox)row.FindControl("textPaid");

        textPaid1=DrpLocation1.text;

}

Please Accept if my answer is right.

Posted 2-Dec-12 20:05pm

Arun kumar Gauttam

Updated 2-Dec-12 20:47pm

v2

Comments

aravindnass 3-Dec-12 2:10am

heyy ...thanks for reply..
but what I need is change dropdown on textchange .plz give me javascript for thiss....

aravindnass 3-Dec-12 2:23am

.if the amount is entered in text box() ,then the value in drop down() shld be changed as paid()..here is the static value of dropdown <asp:ListItem Value="4">--Select-- <asp:ListItem Value="0">Open <asp:ListItem Value="1">Paid <asp:ListItem Value="2">Pending <asp:ListItem Value="3">Advance

Arun kumar Gauttam 3-Dec-12 2:28am

you need to just change condition on my upper code:
if(textPaid1.text="What value";
DrpLocation1.text="paid";

there is no need of java script, use only asp.net code

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Accepted Answer · 2012-12-02T23:37:00

I worked this out for you. Take a look at the code.

JavaScript code

XML

<script type="text/javascript">

// Function is used to select the DropDown Paid value 
// if textbox contains any value.
function SelectPaidValue() {

      // Get the controls.
      var textPaid = document.getElementById('<%=textPaid.ClientID%>');
      var ddlPaymentStatus = document.getElementById("<%=ddlPaymentStatus.ClientID %>");

      // Check if data is there in textbox or not
      if (textPaid.value != "" && textPaid.value != null) {
          // If data is there select "Paid" from DropDownList.
          selectItemByValue(ddlPaymentStatus, 1);
      }
      else {
          // If data is not there, then select "--Select--" from DropDownList.
          selectItemByValue(ddlPaymentStatus, 4);
      }
}

// Function is used to select the DropDown option by value.
function selectItemByValue(elmnt, value) {
      // Loop through all the options and select the provided value.
      for (var i = 0; i < elmnt.options.length; i++) {
          if (elmnt.options[i].value == value)
               elmnt.selectedIndex = i;
          }
      }

</script>

aspx code

XML

<asp:TextBox ID="textPaid" runat="server" onblur="SelectPaidValue()"></asp:TextBox>
<asp:DropDownList ID="ddlPaymentStatus" runat="server">
        <asp:ListItem Value="4">--Select--</asp:ListItem>
        <asp:ListItem Value="0">Open</asp:ListItem>
        <asp:ListItem Value="1">Paid</asp:ListItem>
        <asp:ListItem Value="2">Pending</asp:ListItem>
        <asp:ListItem Value="3">Advance</asp:ListItem>
</asp:DropDownList>

Thanks...

pradiprenushe · Accepted Answer · 2012-12-02T20:05:00

Solution 1

Try this

JavaScript

 <script type="text/javascript">
        function SomeFunction() {
var txt= document.getElementById('<%=Test.ClientID%>');
if(txt.value !="")
{
            var x=document.getElementById("<%=dropdownid.ClientID %>");
x.selectedIndex =1;
}
        }
    </script>

C#

<asp:TextBox ID="TextBox1" runat="server" onchange="SomeFunction()"></asp:TextBox>

Posted 2-Dec-12 20:05pm

pradiprenushe

Updated 2-Dec-12 20:32pm

v3

Comments

aravindnass 3-Dec-12 2:23am

.if the amount is entered in text box() ,then the value in drop down() shld be changed as paid()..here is the static value of dropdown <asp:ListItem Value="4">--Select-- <asp:ListItem Value="0">Open <asp:ListItem Value="1">Paid <asp:ListItem Value="2">Pending <asp:ListItem Value="3">Advance

pradiprenushe 3-Dec-12 2:33am

try my update solution

javaScript for drop down change based on text change

3 solutions

Solution 3

Solution 1

Solution 2

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