Web Forms :: Multiply Values From Dropdownlist And Textbox?
Jan 29, 2010
I have a dropdownlist which display the price of products which is retrive from database, how do i mulitply if the user entered the quantity in the textbox. I keep getting error input string was not in a correct format.
Here is my aspx code:
<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Order.aspx.cs" Inherits="Order" Title="Untitled Page" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">[code]......
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Similar Messages:
Feb 2, 2011
I want to multiply two textbox values and result should be displayed in another textbox
txtoqt*txtqty=txtqtyreq
should not be keypress event because both values(txtOQty and txtQty) are retreving from database.
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Jan 15, 2011
I have write this code to create a gridview with 3 columns
DataTable dt = new DataTable();
dt = new DataTable();
dt.Columns.Add("ID", typeof(int)).AutoIncrement = true;
dt.Columns.Add("Name", typeof(string));
dt.Columns.Add("Price(Grouch)/Hectares", typeof(float));
DataColumn[] keys = new DataColumn[2];
keys[0] = dt.Columns["ID"];
dt.PrimaryKey = keys;
dt.Rows.Add("1", "Seaside Location", 1.5);
Session[key] = dt;
return dt;
I would like to add in this code a textbox with the quantity.
When i give the quantity i want in another textbox to have the total.
for example 2*1.5=3
How can i do that?
My huge problem is that i dont know how to take the values of the 3rd column.The value 1.5 in this example.
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Aug 20, 2010
I would like to multiply the values from two text boxes (txtBox1 should contain an Integer value, txtBox2 should contain a Float value) and place the result in a third text box. My code is below, but it doesn't work. The javascript function is called, otherwise it fails.
[Code]....
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Jan 15, 2011
I have write this code to create a gridview with 3 columns
DataTable dt = new DataTable();
dt = new DataTable();
dt.Columns.Add("ID", typeof(int)).AutoIncrement = true; [code]....
I would like to add in this code a textbox with the quantity.When i give the quantity i want in another textbox to have the total.
for example 2*1.5=3
How can i do that? My huge problem is that i dont know how to take the values of the 3rd column.The value 1.5 in this example.
View 2 Replies
May 5, 2010
I'm at the end of a project and have hit a wall. I'm pretty unfamiliar with VB so this is why I've left this piece of the project for last.
I have a popup window in which I pass some values via QueryString. I want to be able to pull them into my application and do some math on them and then write them out to my aspx page. The problem is I don't know where/how to begin. I've searched around the asp.net boards, but can't seem to find any good starting point.
I'm reading in some dollar amounts, a percentage and an Id that I'll use to pull a payment schedule (number of payments). I'm trying to get at a payment breakdown. I was thinking of writing it Something like this:
[Code]....
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May 7, 2015
How To Multiply TwO Values In GridView In asp.net using c#
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Nov 13, 2010
If i have 55 checkboxes with different text 1,2,3,4 and so on ....and a textbox where it display how many no. of checkboxes checked i want to multiply the multiple selected checkbox text with how many checkboxes are checked in other textbox i want to do this using vb.net,asp.net
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Mar 9, 2010
Let's say I have DropDownList ddlRooms bound to the datasource which returns list of available rooms from table tblRooms. On the other hand I have users, and their info is stored in table tblUsers. Using FormView frmUsers can be inserted, edited and updated... frmUsers is be bound to separate datasource. To each user, I would ilke to assign a room, so the value of txtUserRoom will be populated based on the selected value from ddlRooms. How can i pass the selected value of ddlRooms to txtUserRoom while keeping txtUserRoom stil bound to user datasource? Do I need two separate fileds or can i just put value of ddlRooms into datasource user?
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May 7, 2015
Multiplication of two columns in gridview and display the result in third column using Javascript
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May 20, 2010
I have List items = new List();
and UI i have a textbox I am entring and ListItem..
when I enter the value in textbox I need to add values to the listitem..?
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Aug 20, 2010
I have one drodownlist which show data based om textbox values...
Let us consider i have Select Name from table1 where Type IN(@typ) here @typ is textbox values here for example textbox will have some thing like this L1,L2,L3.. How to filter Name based and shown in drodownlist based on this L1,L2,L3(on textbox)..
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Dec 22, 2010
i have added one textbox as a template in my gridview.i want to get the values of textbox to a string when i enter values to the textbox.
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Feb 17, 2011
I wonder how to muliply two columns in a table and the result is displayed in the blank column and be specified by its row..
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Oct 29, 2010
How to add two text box values and equating with other textbox and disabling the button.
I have 3 textboxes shipQty1, shipQty2,Orderqty and a button i.e. CustomerReport.I want disable the CustomerReport button when this expression succeeded shipQty1+shipQty2=Orderqty. if orderQty is equal to ship1 and ship2 then CustomerReport button should be disabled.
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Dec 7, 2010
I've done a bit of development with C# applications but not much with ASP.Net so if this is a trivial issue. I have a webform that has textboxes for password, phone number and a listbox for a provider. When I load up the webpage, I populate with the textboxes and listbox with selections from my SQL database. This works correctly. Then I allow the user to change data in any of controls. In the event that is triggered by the Save button, the values in the textboxes and listbox are the data values that were populated during the loading of the page, not what the user has typed in.
What am I doing wrong? I've attached my 2 pages of code.
Here is the .aspx
[Code]....
Here is the .aspx.cs code
[Code]....
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Oct 9, 2012
Using dropdown in gridview and bind the values in dropdown then based on dropdown display the value in another column.
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Jan 17, 2011
I have a FormView Bound to an SQL data source. In the DATA there are 2 columns that i would like to multiply together and display there rate
<asp:TextBox ID="txtPeople" runat="server" Text='<%# Bind("People") %>'></asp:TextBox><asp:TextBox ID="txtRate" runat="server" Text='<%# Bind("Rate") %>'></asp:TextBox><asp:TextBox ID="txtTotal" runat="server" Text='<%# Bind("Rate * People") %>'></asp:TextBox>
This is just an example above but i believe it shows what i am trying to do, there is no calculated column in the database so i can not bind to that directly, and i can not just add the column to the data as its not in my permissions. So how do "Bind" the value of two columns multiplied together to a third text box?
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Dec 22, 2010
i have four radio buttons and one text box..i have to check the selected radio button value equals to the textbox value..
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Sep 30, 2010
I have two int in my applicantion and I want multiply and share by 100. This number can be like 7,5 but my decimal result member always save just 7.how can I deal with this question?
Ex.:
decimal result = 0;
decimal a = 15;
decimal b = 50;
result = (a*b)/100;
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Mar 2, 2010
i have a gridview
[code]....
The values in the taxtbox are added and while display in footer template it is not assinging with the added value.
it gives me error:
object referrence not set to instance of object.
How to assign the value(total values added from each textbox) to the'txtTotal' Textbox in gridview
i.e in this line
tostring = ((TextBox)gvSales.FooterRow.FindControl("txtTotal")).Text;
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Dec 17, 2012
i have 2 template field columns time and total_time in a gridview.. time column has a label in the item template and a textbox in th edit item template..
similarly, total_time has a label in the item template and a textbox in the edit item templte..
what i need is, when the user enters a value in the time textbox,it must get updated in the total_time textbox.. and on edit,when the user changes the value of the time textbox ,dis value must be ADDED to the total_time textbox.. both should be displayed in the label also..
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Dec 15, 2010
I have The following structure in my crystal report
Qty Rate
5 2,4,6
10 1,5,20
I need like this in my crystal report
Qty Rate Amount Total
5 2,4,6 10,20,30 60
10 1,5,20 10,50,200 260
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Jul 15, 2010
i'm binding data to ddl from database.i'm selecting one column from database table to bind.In that column there may be items with same name.but when selecting in ddl there must be no same values.
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Jan 18, 2014
How to swap ddl's selected value on buton click.E.g User has Selected One from ddl1 and three from ddl2 then when the user clicks the Button the values should be swapped.
User Selected
DD1 DD2
One Three
After Swap button click
DD1 DD2
Three One
<asp:DropDownList ID="ddl1" runat="server">
<asp:ListItem>One</asp:ListItem>
<asp:ListItem>Two</asp:ListItem>
<asp:ListItem>Three</asp:ListItem>
</asp:DropDownList>
[code]...
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