Clear All Data In Datagridview And Not Delete Data , Column In Datagridview?
Jul 19, 2009How i clear all data and not delete data or column in datagridview?
View 1 RepliesHow i clear all data and not delete data or column in datagridview?
View 1 Replieshow to clear the old data from the datagridview in vb.net.. the below code is retrieving the data from table and display in a gridview for particular person. but when i wanna check the next person record if he dosen't have record so the previous data still will not erased?
Dim c As New sqlStmt
c.myCon()
Dim da As New SqlDataAdapter("SELECT * FROM Experience WHERE CID='" &
[Code]....
Public
Class LoanCalc
Private Sub butCalc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles butCalc.Click
'This procedure executes when the user clicks the Calculate
'button to produce a loan payment based on the requirements
'as stated in the service request.
'Variable Declarations
Dim douPrincipal As Double = Me.txtPrincipal.Text
Dim douInterest() As Double = {5.35, 5.5, 5.75}[CODE]......
i want to delete existing data in datagridview using loop . i write code below:[code]but problem is that when data found and deleted row then orginal data index mismatch. and get error. how do make loop in up to down and delete row if match
View 4 RepliesHow to Insert, Delete and Update Data in a Datagridview using MySql as the database? There is a textboxes and button that adds data in the database and i want it to be refresh the datagridview.
View 3 RepliesI have a DataGridView and i binded its datasource to the datatable.Now i want to edit and delete the data from the datagridview in this way:I did this in asp.net and now i want to do the same in the vb.net.What i want to do is that each dataGridView row will contain two link button called edit and delete(in the above figure they are the imagebuttons of asp.net),when i will click the edit link button then it will change to update and cancel link buttons and the contents of that particular row will be shown in textboxes so that the row can be edited by the user.
View 8 RepliesI have a data grid view that contains several columns. The first column is the only column I care about and it contains Result IDs. The view may be filter from time to time. I want to get the Result IDs from all the visible rows and put them into a table variable so I can use ADO.Net to send that table to a SQL Server stored procedure. I currently use a loop (see below). Is there a way to do this quicker without a loop? I'm new to VB.Net and I was hoping .Net would have an impressive method to do the same thing the loop below is doing.
Private Function prvfnc_GetResultIDs(ByVal dgv As DataGridView, ByRef dt As DataTable) As String
Dim rw As DataRow
[Code].....
Iv've always done a loop like below to go through each row of my DataGridView..For Each row As DataGridViewRow In DataGridView1.Rows....Is there a way to specif a specific row and column that i want to get data from? I tried this below but didnt work
MessageBox.Show(dataGridView1.Rows[1].Cells[0].value)
and
MessageBox.Show(dataGridView1[0, 1].Value)
I'm having problems editing the text of a particular column in a datagridview from the front end. The text enters ok but as soon as the cell loses focus it goes back to the old value. The datagrid view readonly property is set to false and I don't have any problem writing to the other columns.
View 2 RepliesHow can i extract the values from a column in a datagridview?I would like to put them into a string array.
View 2 Replieslet's say the datagridview have 3 column
|--------------------------------
| id | name | age |
-----------------------------------
| 1 | john | 20 |
------------------------------------
i want to get "id" only from every row i tried this code,but it wont work
For cn As Integer = 0 To DataGridView1.RowCount - 1
DataGridView1.Rows(cn).Cells(0).Value)
Next
i want to fill my datagridview column with sql query and data i have 1 datagridview in datagridview 4 column
column1 column2 column 3 column4
this gridview is undound
i want to fill with sql data
I am writing validation for a datagridview which may open a number of different tables (dependant on what the user selects). The idea is that the user will select a lookup table to edit or add too, the datagridview opens (via a binding source) and populates itself with a specific table's data.
The user can then edit the data in the rows and when they are happy update the dataset which in turn updates the database table.
This all works except there is no validation per say prior to the update. As the datagrid loads a different table dynamically I cannot predetermine table column names (without writing a mass of hard coded values) so I would rather go by the datatype of the column since the tables all follow a similar format.[code]...
I have a datagridview with 4 columns (id, name, ticket_number, destination), i just want that datagridview on column "ticket_number" to display ticket_number from mysql database and another 3 columns for user input.
View 3 RepliesI would like to bind different queries for a long set of columns in datagridview that has been set already during the formload, e.g:
With dgvGrid
.Columns(0).Name = "Dept Code"
.Columns(1).Name = "Emp ID"[code]....
there are still more of it. The data needed for those columns is coming from a different table.
So I have a datagridview being populated with data from a database.At this point a user may or may not selected (via mouse click / key press) one or more rows within the datagridview.I need to (upon selection) create a new dataset, datatable and add rows with the some data from the said datagridview.
For example, if a table had nothing but names, e.g.
Joe
Sean
Larry
Chris
Upon the user clicking, dragging a selection over Sean and Larry to add those names to a new dataset so I can pass it to another method for further processing.
[Code]...
Input array is longer than the number of columns in this table.It looks like I'm either missing a column declaration or adding the table to the set?
I am having trouble in allowing the user to select the row in the datagridview.
I managed to include the checkbox column in the datagridview but i do not know how to wrte the code such that when the user wants to update or edit the data in the checked row, he just have to check the affected rows checkbox, can be one or many, and then click on ok button, which will then lead him to the data updater form, allowing him to update the data.
Currently i have the below code which can populate the checkboxclumn only.
dbProvider = "PROVIDER=MICROSOFT.Jet.OLEDB.4.0;"
dbSource = "Data Source = '" & Form1.TextBox8.Text & "'"
con.ConnectionString = dbProvider & dbSource
[Code]....
I have to implement a column (TransactionCompleted) which will only hold two states Yes/No. I am using SQL Express and wonder which would be the best DataType to go for that column, if I prefer to display the data in a DataGridView column as CheckBoxes later in my application?
View 5 RepliesHow to point the textbox as key-in data TO datagridview specific COLUMN because some COLUMN i leave them as a BLANK
Exampel :
column 1=ID
column 2=Range
coulmn 3=Name
my question is :i want to key -in data in TEXTBOX1.text to column 3 Normally i use code bellow,
datatable.rows.Add(text1.box.text)
I have a form and in that form is a datagridview listing information from a table in a database. The datagrid is setup as read only and the user is unable to move the columns around. The purpose of the datagrid is to allow the user to select entire records and press a menu button that does some action on them. To make it easier to use the very first column in an unbound data column that I fill with a number representing the row count so 1,2,3,4.... this makes it easier for the user to count how many rows he has selected.
The problem is that the unbound column moves to the last column in the datagrid at random times.This only happens in development not after the application has been deployed. Its annoying because lets say I go in to add a label or change a menu item on the form that has nothing to do with the datagrid I have to make sure that the unbound column hasn't moved.Has anyone else had this problem mixing bound and unbound columns in a datagridview.
I have this test form where I'm testing the idea, but ran into a snag. Now the main idea is to load all the data from a dataset into the one column of the datagridview. This works perfectly as shown in the image. Now there is something that I want to happen, but just can't get it right. when on the DataGridViewComboBox Column I also want to be able to type in my own data if the one I want is not available in the combobox.
Also if there are 50 values in my combobox and 2 of them are:
jacky, jacson
When I type jac, I want the combobox to only give me the options starting with "jac"
Here is the code that I'm currently using:
Dim dt As DataTable
Dim dsNewDataset As New DataSet()
Dim i = 0, intSetArray As Integer = 0
Public Function JT_PullDataWithCOLUMNS1(ByVal Cols As String, ByVal TableName As String) As DataTable
[Code] .....
I am trying to link two columns with dates and time to a new column, but the original columns are not in DateTime format. Here is sample of the data:
C_DATE C_TIME
231110
211152
[Code].....
I have a vb.net form to add, modify or delete the product list..i have a datagridview in which i m loading data from sql server datatable...now i have a text box which accepts code for the product..i want that when i press a key, all data starting with that key should be highlighted in datagridview.....
eg
i have product codes
A001
A002
A003
C001
D001,, etc..
Now i press A in text box...in datagridview all data with A should be highlighted
I have a datagrid and set of collection of columns for the datagrid. I have added cloumnname and headertext using column collections in design time. I have made false of autogenerated column. I was unable to load the data in datagrid from datatable. If i remove the collection and add bind data in datagrid means working fine but not for the column collections.VB.net windows application.
View 2 RepliesOnce I read the property for DataGridView Column which allows Grid Column to adjust as per the data width. I can not recall it or find it.
View 1 Repliesi have a problem with a SELECT statement.I have a table <EisagogiStoixeion> with 6 columns, one of then is < AgonPeriodos>. I want to display data in a datagridview depending on the column <AgonPeriodos>. I use the Select statement like this :
SELECT * from EisagogiStoixeion where AgonPeriodos = '" & textbox1.text &"'.
Value not set for one or more required parameters. This is my problem on the fill command.
If i don't use the where statement everything is ok and i can see the data including the data from the AgonPeriodos column.
I'm using visual basic 2010 and i am able to import the raw data from excel and into my datagirdview but i am unable to get the code to add the values of raw data in column 2 and 3 and show the answer in column 5. Do i need to loop it?
The entire project is in the attachment take a look at it.
This is the entire code i have now:
Imports System.Data.SqlClient
Imports System.IO
Imports System
[Code]....
I have a datagridview that is populated from an Oracle 11g DB. What I would like to do is add the values of a column together and display the results in a textbox. What would be the easiest way to do this?
View 2 RepliesIn my datagridview there are two dependent columns, one is category and the other is items. So I want to filter my item column list as per selected category. But the problem is that when I change the category wise data to datasource of items combobox, previous selected items names disappear because previous items is not in current datasource.
View 1 RepliesUsing MS Access 2003 I am trying to build a command button in a form which clears the contents of a table column (which are tick boxes) - the idea behind it is this - the database is a contacts database for a club. Every year there is a subscription to be paid, so I want a column to annotate those who have paid (using a tick box). At the end of the year this will be reset - hence the reason for trying to produce a command button that clears out the ticks. What I using is this ....Private Sub Command11_Click()Dim strSQL As StringstrSQL = "UPDATE TBL-Master SET TBL-Master.campaign = '';"DoCmd.RunSQL strSQLEnd Sub(TBL-Master is the table name, campaign is the column name)What I am getting is a runtime error - 3144 -
View 3 Replies