Auto-update A Listview Based On Reading A Column?
Mar 28, 2012
Is there a way to auto-update a listview based on reading a column?
Requirements:
1) The code must make a call to a user-created "Private Sub" to recalculate
2) Update must be automatic. .SelectedItem or clicking a row will not work
3) The formula function cannot be included in Form_Load
I've got everything working if the user selects a row, then clicks an "update" button using .SelectedItem. But with my current program containing 200 rows, it's not feasible. Simply put, how would I go about updating a listview column (0 in this case) based off a call to a formula, then updating the row?
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Jan 5, 2010
I have 4 Columns in a ListView. The first one is called Serial No. Every time I populate it, the serial number increases automatically. After populating the ListView couple of times, I select any row(s) and remove it. When I remove one or more row(s) from the listview, serial numbers stays same. I want the serial numbers to be fixed automatically when I remove any number of row(s). How can I do that ??? Here is my code -
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Str(4) As String
Dim newItm As ListViewItem[code]....
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Jun 30, 2009
I'd like to autosize listview columns to fit the column names. From what I saw this should do it but it doesn't work for me. Can someone see what I'm doing wrong or know of a way to do it? The listview is designed to dynamically build the coulmns based on the number of coumns in a recordset.
[Code]...
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Aug 23, 2011
I have a database and I'm storing images in it along with a person's name, and other attributes. I've databound my listview with a stored procedure. I want to know how I can display an icon on a row depending on if the record for that row has a picture or not for the person...I'm not sure how to accomplish this however with the templates in asp.net
EDIT:
Here is my template and the s where I'm hoping to put them.
<ItemTemplate>
[code].....
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Jan 18, 2010
just want to know if linq to sql auto updated the id column of a class (table row object) after SubmitChanges is called inserting a new row to that table, that would be fantastic, would anyone be able to confirm this?
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Jul 23, 2009
I have a program that is reading and writing to certain memory addresses to a particular application exe...
So I have a listview control with 4 columns and X rows
| Name | Address | Type | Value |
Name: Is just an identifier so the user knows what it is.Address: Is a specific memory address (eg 0058AFA0).Type: Type of value stored in the address (eg, 4 Bytes, Float).Value: Value to store in the address.Im looking for a way to go through each row, take the address and use this to read the value at that address and then update the value on that row
[Code]...
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May 18, 2010
Currently working on a project to automate the input based on the Summary file (xls format)
1. I want to be able to do the following: update, append, delete and populate the records to the various files based on two distinct fields, column A & F (see attached file).
2. Researched the process, requires knowing VB codes, are you familiar with this language? If so, how can I simplify the process? Please advise.
3. The files will reside on the SPP.
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Nov 25, 2011
I am doing project in vb.net using ms access I used listview to display data from table I want to display different context menu strip for different column I have done it using hard logic to get column number is as follows:
Private Function getClickedColumn(ByVal pListView As ListView, ByVal pMouseX As Integer) As Integer
Dim result As Integer = 0
[Code].....
Also i want to edit any cell of the listview & update its result to database .
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Nov 27, 2011
here any algorithms/pseudocode for reading/parsing 3-column csv data and determining unique objects/attributes/values?
example data:
john,height,1.75
george,age,21
[Code]....
i have already implemented a solution of my own but it's too slow and i can't find any relevant literature on the internet.
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Feb 15, 2009
I would like to know if it is possible if the columns of the listview can be resized automatically based on the information in the listview?
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Mar 13, 2009
table named mytablei have columns like this
[Code]...
i would like is to include amount1 and amount 2 values into sum only if amount1paidstatus="yes" for amount1 and amount2paidstatus="yes" for amount2, something like for selected day and selected customer.query "should" look something like this:select amount1(if amount1paidstatus=1)+amount2(if amount2paidstatus="yes")from my tablewhere (day=1) and (customer=1)
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Nov 15, 2010
I'm writing a help application for the Customer support team at my company to help agents ask better questions when customers report problems. In it, I've got a SQL database that contains all the products, topics, and questions. The layout is similar to the following:
Products Table:
Product_ID Product Name:
Topics Table:
Topic_ID Product_ID Topic
[code]....
I don't know if I'm making myself clear, but I basically need to do the equivalent to the following SQL statement: "SELECT PRODUCT_ID FROM Products WHERE PRODUCT_Name = LstProducts.SelectedValue"
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Apr 6, 2011
I am creating a project in VB.NET in which one of the reports require that the name of employees should be displayed as column names and whatever work they have done for a stated period should appear in rows below that particular column.Now as it is clear, the columns will have to be added at runtime. Am using an ODBC Data source to populate the grid. Also since a loop will have to be done to find out the work done by employees individually, so the number of rows under one column might be less or more than the rows in the next column.Is there a way to create an empty data table and then update its contents based on columns and not add data based on addition of new rows.
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Dec 13, 2010
I have a data gridview on my windows form with 4 columns. Now I identify a column as followed:
Dim item1 as String = DataGridView1.Item(1, index).Value
So now I use a number ( In this case: 1 ) for the column index, but I want to make it a bit more readable so now I want to obtain the column index based on the datagridview column name.[code]...
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Feb 24, 2011
In a vb 2010 project, I have 2 win forms: Form1 and Form2.
In the Form1 class there is a server-based timer: when the "elapsed event" fires, then I update the text of a Label1 on the Form2. A very simple code:
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Jul 4, 2011
I have been trying to find out how to resize listview column width to the largest widthor either column header or item in c#
[URL]
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Sep 12, 2011
I have a listview and i want to make one column's font smaller than the other column to fit form design. How will i do that?
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Jun 22, 2010
im trying to make the listview sort the listview items by column (whichever column was clicked, sort the list based on that column)
in vb6 it was done by:
Private Sub ListView1_ColumnClick(ByVal ColumnHeader As MSComctlLib.ColumnHeader)
Static olditem&
With ListView1
[Code].....
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Nov 15, 2010
how i can implement below requirement using asp.net and vb.net.I have three fields in a form which are filled by users. Based on these three values, i need to auto-populate the 4th field.I have planned to implement this in the following way.Write a separate class file with a function to calculate the possible values for the 4th fields based on 1st 3 inputs. This function can return some where between 1-10 values. So I've decided to use drop-down for 4th field, and allow users to select the appropriate value.Call the above function in onchange function of 3rd field and take and use the return values to populate the 4th field. I'm planning to get the return values in array field.(Does this need a post back?)
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Jun 3, 2011
I have a combobox (cmbCharge1) that gets populated by a text file. Inside the combobox, the data inside is laid out like this: 41-1A-1303: EXPIRED REGISTRATION Now, autocomplete works fine, if I start typing in the statute (like the 41 part). But what I need is for it to autocomplete based of whats after the: So if I type in EX, then everything starting with EX pops up.
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Mar 27, 2010
Auto-Complete text box based on previous entry
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May 11, 2009
I am trying to figure the best way to programmatically re-size table column headers in ReportViewer.Basically, my current resolution is the following: ColumnWidth = Header Caption_CharacterCount * 0.32...Where 0.32 is an estimated width of a typical character using my current font size.The issue is that the width leaves a lot of whitespace for longer captions.The more characters a caption has, the more whitespace I end up with.The issue with estimating this way is that not all characters are the same width. A good example would the the "I" character, which takes up less screen width than the rest of the alphabet.[code]
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Feb 5, 2009
How to change the height of each row of datagridview in order for it to more taller. I use this code
Me.DataGridView1.RowTemplate.Height = 100
I want it to adjust base on the content of the text.. so that each row dont have the same height and it will base only on the size of the text or content of the current row?
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Jan 23, 2012
I'm trying to create my own custom "inputbox" (can't think of VB.Net term for the VB6 input box).
Anyways, I'd like to have a label & a textbox on my form along with 2 buttons. I want to let the label to grow based on the text that is in it. I know it has an autosize feature to it, and guess I can use that, how do I limit the width so that once it hits that limit it goes to a new line so that if I have a message or a question to pose to the user, it doesn't get too wide. Kind of like MessageBox.Show.
It'll be Label at the top, textbox under that, and the two buttons under that. I'd like the textbox to move up/down based on the size of the label, and the buttons to do the same along with the window not becoming too wide.
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Jan 21, 2011
I am trying to create a accept User Name in textbox and as additional feature i want to show suggestion to user automatically. For example if user press "J" he names starting with "J" (present in name table ) should be displayed as drop-down.
Can i do it with TEXTBOX or is there any other simple way?
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Sep 2, 2011
I am trying to make a listview custom control based on the standard listview control that will allow me to drag a column header outside the standard listview control and drop it on a panel. I plan to use the drop event to determine which column I should group by view on.
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Sep 28, 2009
i have been working on an app and now have got to the point i want to let people test it i know how to use the click once auto-update but what i want to do is display the auto-update progress with a form that shows :
ProgressBar - Label displaying % - label displaying Current Process
label displaying Current Process EG Downloading file - copying file to directory stuff like that how would i go about setting this sort of thing up
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Jul 17, 2011
I have an Access table which has an auto-number primary key. When I add a new record to it I want to be able to get the value of this field.
The relevant code I have is:
dsNewRow.Item("FullName") = NewStudentFields(0)
dsNewRow.Item("FirstName") = NewStudentFields(1)
dsNewRow.Item("LastName") = NewStudentFields(2)
[Code]....
I want to be able to access the value of the primary key immediately after the Update (if that's possible without having to search the dataset for the new record - cumbersome!) or, even better, just before the Update, if that's possible.
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Apr 5, 2011
I want a textbox to have autocomplete. I want the completion to be based off of text that has been previously entered into the textbox. My method of saving seems to work but when i close the program and re run it the autocomplete suggestions arent there anymore.
[Code]...
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Jun 3, 2011
am trying to calculate the values in rows in column 6 based on values of column 5. Bellow is the the code I am using I get a run time error about the string not formatted properly
[Code]...
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