How To Validate Length Of Value With Dataset
Jan 2, 2010Here is the code I am trying to get to work:[code]I have managed to check for null. it is just the length check that I am have difficulty with.
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VB Dotnet - Validate Length Of Data In A Text File?
Dec 27, 2011I am working on a VB.NET windows applications. It reads data from a text file and inserts them into SQL server DB using SQL Bulk copy.I want to validate the length of all the fields in the file. The maximum length allowed for evey field is stored in tbFieldLength table. File has 50 columns and 10,000 rows and the values are separated by '|' symbol.
If the length of a value in any row is greater than the length specified in the tbFieldLength table, I want throw an error with exact row and column details. For example,saying
"Lenght of the value in Row 6, Column 20 is greater than the expected length"Also, I want to identify all the places if the error occurs in multiple locations. What is the best way to validate the length of fields in the text file?
VS 2008 Function IsValid - Validate Some Criteria - Text Length Character Content
May 4, 2011I need to create a function named isValid to validate some criteria, text length character content. have validated length but i need to validate at least one Uppercase letter and one number is used(minimum) i was thinking of using a loop to check each character individually. thats probablly where i go wrong i, i often convolute the simple and keep heading of track.
View 3 RepliesVS 2008 Dataset - Form Validation And Validated Events To Validate The Data
Mar 22, 2012I have an application has a data entry form, and currently I'm using the form validation and validated events to validate the data - along with an error provider. I've read that this logic should be placed in the Dataset rather than the form. To that end, i've started exploring how to do that.
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Database "update" Button To Validate The Input Before Applying It To The Dataset ?
Jan 22, 2009Ok, so I have created an Access database, and everything is working fine (much to my amazement) except for one thing. I want the database "update" button to validate the input before applying it to the dataset, and if there is an error (empty field) I want it to pop a message and highlight the text box in question where the error occured (there are 7 textboxes).
How precisely do I go about doing that?
CODE:
This is what I have so far for the update button. I attempted the "textbox1.isnullorempty"
Validate Html.editorfor - Validate The User Data Entered
Apr 26, 2012I'm trying to figure out a way to validate the user data entered:
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This is in MVC3, VB.net. I'm looking for an easy way to validate a users input data into the editorfor field.
Substring - Error: Index And Length Must Refer To A Location Within The String. Parameter Name: Length
Apr 17, 2009this is not working?
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End WhileI am trying to read from the ": " to the end of the line. I keep getting this error: Index and length must refer to a location within the string. Parameter name: length
Index And Length Must Refer To A Location Within The String. Parameter Name: Length Exception
Feb 17, 2011am getting the above exception while swaping Items in the list(lstRoutePriority).PFB my code
if (lstRoutePriority.SelectedIndex > 0)
{
//Swap the two items
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Convert Character Length To Pixel Length?
Jan 6, 2010I have a field displaying on a datagrid that the user has asked to be variable length based on the data that is returned. Is there an easy way to determine how many characters are returned for a field and then converting that to a pixel length so that I can change the length of the field in the code.
View 2 RepliesOutput Error "Index And Length Must Refer To A Location Within The String. Parameter Name: Length" With Substring
Mar 23, 2009"Index and length must refer to a location within the string. Parameter name: length" whenever I run this code
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Substring Size - "Index And Length Must Refer To A Location Within The String. Parameter Name: Length"
Jul 21, 2010If using the following in an if statement I get an error: If trg.Name.Substring(4, 6).ToUpper <> ("ABCDEF") Then I get the error: "Index and length must refer to a location within the string. Parameter name: length"
I assume this is because the string (trg.name) is too small for the 4, 6 substring. What would be the correct method of working around this problem? VB.net Studio 2008.
Length Cannot Be Less Than Zero. Parameter Name: Length
Jan 31, 2012When I load in the file to my program.
GPRS: 232154,456464,546
IP Addr: 123.456.2.789,9001
Interval: 12.5422
It appear Length cannot be less than zero. Parameter name: length.
My program is...
Private Sub Loadbtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Loadbtn.Click
'Dim strFileName As String
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DataSet Editor - Allows The User To Edit A DataTable In A Strongly-typed DataSet
Mar 15, 2010When the user clicks an "Edit" button on my form, I want a box to come up which allows the user to edit a DataTable in a strongly-typed DataSet. What's the best way to do this?
View 2 RepliesIDE :: Dataset Code Behind Datatable.ColumnChanging Event Firing / But Dataset.HasChanges Property Not True
Jan 28, 2010I have code running in the Datatable.ColumnChanging event in my dataset. This dataset underlies a form and conventional drag/drop controls are in place for data entry.when the event triggers and runs, I am running code in the form that checks the dataset.HasChanges property. It is showing False. But this is immediately after the ColumnChanging event has been triggered.Okay, I see by others posts and MSDN that .HasChanges will only be true after moving off the row with the changed column. I have also noted lots of discussion about the advanced binding property of DataSourceUpdate Mode, but that does not address this issue.I guess I can do this by checking the state of the row for the binding source. Just seems odd that the event behind the dataset can be triggered and that does not change the dataset.HasChanges property.
View 3 RepliesSystem.Data.Common.DbDataAdapter.Fill(DataSet DataSet)
May 14, 2012I have tried everything I can to get beyond this error which shows below as <<<<< error here. It is trying to fill a dataset from a data adapter. If I change the SELECT statement to just SELECT * FROM xTable I get the correct number of records in each table. But anytime I try with a more complex statement I get the error message shown below which indicates System.Data.Common.DbDataAdapter.Fill(DataSet dataSet. I've completely erased all data and entered a new set of test data so I know there is no problem with relationships. Each table has primary key which is foreign key in other table. IS there something wrong with the Imports section: Imports System
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.net - Copy Data From Dataset To A Type Dataset Using Automapper?
Aug 24, 2010i am trying to copy data from a standard Dataset to a Type Dataset (XSD) of same table structure. i want to use Automapper to do that one. So how can i do that using automapper?
View 1 RepliesFill A DataSet On Application Startup And Use Dataset Other Form?
Jun 5, 2010I need to pick all data in my application from my database and use it in my form
my question : how to pick all data in my application then i use it
Loop Through Dataset Updating Data From Results Of Another Dataset
Jun 22, 2010I have two Datagrids, One grid has all the customers garments on it with style number and contact length. The other grid has the users who have garment issued to them. the style number is in both grids. I need to loop through the users grid and say if the contract number is 1 from the first grid then the contract date on the second grid will be todays date + 365 days (year contract) I have looked at using a stored procedure and also a for each command but I am just getting stuck with it all. [Code]
View 1 RepliesSaving Dataset To Database Which Has Imported Rows From Another Dataset
Jan 4, 2011I have a problem saving a dataset which contains rows that i have imported from another dataset. i can successfully view the imported rows in a gridview but i cannot commit the rows back to the database.
View 2 Replies.net - Combine Multiple Dataset Columns To One Dataset?
May 19, 2010I have multiple datasets that I would like to combine into one. There is a common ID field that can be associated to each row. Calling Merge on the dataset will add additional rows to the dataset, but I would like to combine the additional columns. There are too many fields to do this in one query and therefore would make it unmanageable. Each individual query would be able to handle ordering to ensure the data is placed in the correct row.
For Example lets say I have two queries resulting in two datasets:
SELECT ID, colA, colB
SELECT colC, colD
The resulting dataset would look like
ID colA colB colC colD
1 a b c d
2 e f g h
Repointing A Report Dataset To A Test Dataset
Feb 18, 2011ok, I've finally got my test database issues sorted out, however now I need to actually modify my existing report to add the two new fields from my test database. I have made a copy of the report so that I am not modifying the original. I have deleted the two old fields and now want to add my two new fields in there. In the Field explorer window, I see an object called "dataset1" and when I expand it, it is using a view that includes fields from the table that I added my two new fields to.
The problem I see here is that I have gone in and modified the view to include these two new fields in my test database - but again, they are not showing up as selectable fields here. I am just assuming that "dataset1" is somehow pointing to the live database again and that I need to change the datasource location.In my solution explorer, I see an object called "dataset1.xsd" but the properties of that do not tell me much about where it is actually pointing to...
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VS 2005 Typed Dataset Vs UnTyped Dataset
Nov 25, 2009I want to access data using both the datasets.
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Try
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In my code i have dataset name ds and table named Info1,when i write ds after that how tablename is coming,its not possible? How to do that ?
Asp.net - Geocoding A Dataset - Map A Dataset Of Addresses On A Map
Aug 2, 2011i am looking to map a dataset of addresses on a map. basically, i want the users to type a street name in my town and be able to see the houses that have signed up already on that street. so a pinpoint should show up on the houses that came up on the dataset.
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C# - .NET Dataset Design - Have A Dataset For Each Table?
Jul 23, 2010I have some concern about designing Datasets. I was told that it would be good to have a dataset for each table for maintenance purpose. Because frequent change in database tables is expected, having one dataset including every tables would be pain to make the corresponding change in the application.
Q. is it good approach to have a dataset for each table ( I would end up having 30~40 datasets for each db table using Stored procedure) ?
I have a separate project for commonly used datasets. each project include "dataset project" as a reference, and use it by including needed dataset into Forms, classes, etc.
Q. Does this approach makes the whole system to be slower? If I have a set of datasets as a separate project, it would be beneficial, since It will be easier to make a change (I only need to make modification in one place)
DataSet Transformation To New DataSet Group By (x)?
Dec 3, 2009it returns date, and value by date.
for ex:
01.01.2009 454
02.01.2009 785
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Datatype Of A Dataset - Filling A Dataset
Feb 26, 2010I am having difficulties with Filling a dataset. It seems to be automatically assigning a datatype to the column based off of the first field of data it finds in that column. The column sometimes contains an integer, but it may also contain letters and numbers. If the first field is an integer, it says the fields in the column that contain a letter are DBNull. I'd like for the entire dataset to be formatted as a string/text type since I do not know what the values will be that I'm importing 100% of the time. How do I tell the dataset to expect a certain datatype for all columns and rows i'm going to import?
View 19 RepliesDeclaring Variables With New DataSet Vs DataSet?
Apr 16, 2010What is the impact of creating variables using:
Dim ds as New DataSet
ds = GetActualData()
where GetActualData() also creates a New DataSet and returns it? Does the original empty DataSet that was 'New'ed just get left in the Heap?
What if this kind of code was in many places? Would that affect the ASP.NET process and cause it to recycle sooner?
Get Dataset From A Grid Which Has Already Bound To A Dataset?
Jan 11, 2012I have a datagrid which is already bound to a dataset, I need to get this dataset,make changes on some data, then rebind the datagrid with the modified dataset.
here's my code
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MS Access - Dataset - How To Reset A Dataset
Jun 9, 2011I have a form that has 1 text box and has 2 queries that locate the data. One is by customer ID and the other is by customer last name. They both work but when the code works and the user enters a customer ID and the query locates it then enters a customer last name it also locates it. If the user enters the same customer id again the query seems to fail. This is why I'm sure I need to add some kind of code to reset the Dataset.
Here's the code in the load sub procedure:
EditBoxSearch.Focus()
' Start out clean.
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Filtering Dataset - Dataset (WW1Dataset) With One Data Table(WW1) (database Used In An Access Database)
Feb 1, 2010I have a dataset (WW1Dataset) with one data table(WW1).(database used in an access database) I'm trying to filter the dataset e.g a user wants to filter by a chosen surname (SurnameTextBox.text) so the datset is filtered to display only those records wherethe surname column in the dataset matches SurnameTextBox.text.
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