Loop Through Datagridview1 To Obtain The Name Of Each Of The Columns To Set The Attributes?
Feb 8, 2010
I need to loop through my datagridview1 to obtain the name of each of the columns to set the attributes. I'm not sure what I need to look for when doing this.
I tried:
For Each Field As String In DataGridView1.DataGridViewColumn and For Each Field As String In DataGridView1.Columns But it's giving me errors. What would be the proper way to loop through the DatGridView and get the name of each column?
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Apr 19, 2012
Question: I'm exporting a System.Data.DataTable to XML.So far it works fine.But I want to have all the data in attributes, which works fine as well.But my problem now, if in one column, all rows are NULL, no empty attributes are written.So if I read the XML back to a DataTable, it lacks this column...How can I force write all columns even when they are empty ?(DataType not necessarely string)
public void ExportTable(string strDirectory, DataTable dtt)
{
using (System.Data.DataSet ds = new System.Data.DataSet()) {[code].....
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Jun 29, 2010
I have the following code:
Dim i As Integer
For i = 1 To 20
Dim captionTextBox As TextBox = DirectCast(Me.FindControl("news_Image" +
[Code].....
Where the comment is in the code above, I need to insert the value of the textbox (text) into Linq columns. For example: articleToUpdate.news_Image1Caption, news_Image2Caption, but I need to change the number after news_ to the value of i in the for loop.
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Feb 15, 2010
I'm using a loop condition to check if there is null value in the columns, then remove it.
-Original author
[STart:]
For i As Integer = counter To dt1.Columns.Count - 1
For x As Integer = 0 To dt1.Rows.Count - 1
if some condition then
something = true
[Code]...
Sometimes it runs correctly and sometimes even though when i becomes greater than (dt.columns.count - 1), it still executes the for loop and throws an error that there is no column with that index. I must be missing something here but I'm not able to debug the issue.
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Apr 22, 2011
I need to loop inside listview and its columns Sub Items. I'm currently using this.
For Each item As ListViewItem In ListView1.Items
For Each si As ListViewItem.ListViewSubItem In item.SubItems
Next
Next
But it over loops on the items causing the code to produce incorrect tasks.
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May 18, 2011
I am using datagridview to show the data when the form load.Datagridview have a template checkbox column also where the user will select the class to attend.I want to loop the datagrid and find the selected row ro columns value when the user click the save button How i do this am using vb.net 2008?
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Aug 6, 2009
I have a class that add extra information about a column for linq2sql (see code below) right now, I have to explicitly tell what column I want that info on, how would you put that code with a loop on every column in every table from a dbml file? I was doing my test on a very very small DB, now I have to implement it on a much more bigger database and I really don't want to do it manually for every tables/columns it will take hours.
how it's being used:
Partial Class Contact ''contact is a table inside a dbml file.
Private _ContactIDColumn As ExtraColumnInfo
Private _ContactNameColumn As ExtraColumnInfo
Private _ContactEmailColumn As ExtraColumnInfo
[Code]....
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Sep 10, 2011
I'm trying to pass the information on datagridview1 to datagridview2 via clicking a button, where should i start?
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Jun 5, 2011
I use visual baisc 2008 if i use "mouse click" or "use arrow keys " in the datagridview1 then i want that always the focus in on the textfield => Number_Pieces.text.[code]
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Apr 6, 2009
I have create a dataset and attached rows to the DataGridview1. I modifed the rows and attached to the DataGridView2.I find that DataGridView1 and DataGridView2 contains the Same values as modified.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim ds As New DataSet
ds = CreateDataSet()
DataGridView1.DataSource = ds.Tables("Product")
[code]....
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May 22, 2009
I have created a program using VB2008 it has two forms that I am having a problem with FORM2 has a textbox and a button that I use to pass a string to the code in FORM3 that is used to populate DATAGRIDVIEW1. I am using MS ACCESS 2007 for my database. I have supplied the code I am having trouble with below. When I run the program and type a string into the textbox and press the button I get this error: oledbException was unhandled: No value given for one or more required parameters. The area that was highlighted was m_daDataAdapter.Fill(ds). How can I get this code to populate the
[Code]...
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Feb 28, 2011
I am using VB 2008
I created a simple form which has two tableadapters to a Access database. On the form I have a combobox that uses the Category TableAdapter and it populates on load fine. the other control is a DataGridView1 which is popluated by the Message Table Adapter based on which Category is selected. It does NOT populate on LOAD and thats my problem.
So the result I'm looking for is when you run the app and my first form loads it
A. Chooses the frist Category in the list (and it does that fine)
B. Populates the DataGridView1 based on the first Category (this is my problem)
The DataGridView1 does Populate after I re-select the Category in the combobox1.
Here is my code below.
Public Class FunnyMessages
Dim catid As Integer
Private Sub FunnyMessages_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
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Sep 5, 2009
I am having a problem trying to find out how to filter a datagridview1 with a textbox1 by using the code I have below. Public Class Form1
[Code]...
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Nov 11, 2011
Getting Specific Row In Datagridview1 To Other Datagridview?
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Jan 11, 2012
How to search DataGridView by text in textbox1, but after a search when textbox1 empty,I want to be DataGridView1 back to its original state.
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Jun 17, 2012
I don't want the last empty row appear in my DataGridView1. How to get rid of it? Please advise. I am adding data through textboxes. The DataGridview is only to see the data.
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Feb 22, 2009
I'm having problem here with my code. I would like to Update the Database with my DataGridView1 when Click the Button1. But from the code below,I found that an Error have occured.Error from Visual Studio 2008= System.Data: Missing the DataColumn 'DO_No'in the DataTable 'Main_table' for the SourceColumn 'DO_No'.
[Code]...
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Nov 14, 2009
I am trying to use the DataGridView1 to display a table. But it comes blank.
I do not get any errors. Below is my code. Can someone help me????
I can assure the path/table name are correct and there are data in the table
Imports System.Data.OleDb
Public Class frmFindCustomer
Dim ds As New DataSet
Dim conn As New OleDbConnection
Dim da As New OleDbDataAdapter()
[Code]...
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Nov 10, 2011
i have a datagridview1 with a 6 rows and have a value, i want to do is get the index0 to index3 of datagridview1 and put it in datagridview2
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Mar 14, 2011
Makes the following statement about the code below:
**"The computer evaluates the loop condition in the Do...Loop statment to determine whether the loop instructions should be processed. In this case, the inputsales <> String.Empty condition compares the contenst of the input sales variable to the String.Empty value. As you know the String.Empty value represents a zero length, or empty, string if the inputsales variable is empty, the loop condition evaluates to True and the computer process the loop instructions. *If on the other hand the inputsales variable is not empty, the loop condition evaluates to false and the computer skips over the loop instructions.
Based on the code I think it is the opposite: ...that while the inputsales value is not empty it should evaluate to true and process the loop and if it is empty it should evaluate to false and skip the loop?
See below.
Option Explicit On
Option Strict On
Imports System.Globalization
[CODE]...
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Apr 5, 2012
I have 2 datagridview with name datagridview1, datagridview2. when cell_click on datagridview1, datagridview2 in Form2 will show show on datagridview1 as below:
datagridview1.Controls.Add(Form2)
I cannot set focus to datagridview2 because system always focus to datagridview1
I not that prefer:
Form1.Controls.Add(Form2)
datagridview1.Enabled = false
Because i cannot Form2.bgcolor = transparent to Form1 instead of datagridview1
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Oct 19, 2010
what's the best way to copy all data from one datagridview to another?
I am not sure how to do it... lopp rows? loop colums?
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Feb 8, 2010
i use below code to open CSV file with openfiledialog to datagridview1. So i can show my CSV file at datagridview1.my problem is thaif CSV file have 5-10 line, it works good. But if CSV file 1000 line, it doesnt open. I have a error message that "it more than 60 second and it get CPU and RAM so much. You should use something(I dont understand what it means so i wrote something)"
OpenFileDialog1.Filter = "CSV Dosyalar± (*.csv)|*.csv"
'OpenFileDialog1.InitialDirectory = initialDirectory
OpenFileDialog1.Title = "CSV Dosyas± Seiniz"
[code].....
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Jan 10, 2012
How put selected items from DataGridView1 to ListView1
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May 30, 2012
I have an vb.net app that runs a SQL query and then emails if the results are > 0 I would like to add the results of the query in the body of the email. thoughts?
[Code]...
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Dec 7, 2011
How Change the Header Names in the DataGridView1 By DataGridView2 In the sense I want to change the title in the pole DataGridView1 Through the fields in the first column DataGridView2 The first field in DataGridVeiw2 =The first column heading in the DataGridView1 the second field in DataGridVeiw2 =The second column heading in the DataGridView1 And so on
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Jun 13, 2011
In case there were two datagridview and different data source. What's the easiest way to copy the selected rows of datagridview1 to datagridview2 ?
Note: that the selection of Srifa rows using the checkbox column
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Jan 12, 2012
DataGridView1.DataSource = Table1TableAdapter.Fill(
Me
._OperatorGUI_DatabaseDataSet.Table1)
[code].....
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Dec 16, 2009
i try to print data but when i put this code ..my data is repeated example[code].....
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Jan 26, 2012
I got an application with a binded Data Source and im trying to display how many rows in the DataGridView are present in the dialog title like
[Code]...
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