Data Controls :: Check If Table Exists In Database Or Not
Apr 27, 2016I need to check whether table named 'CSE' is existing in database or not. if it exists, i want to drop the table 'CSE'.
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How To Check A SQL Database Table To See If A Record Exists?
May 10, 2010I have a SQL database that creates a record for every document uploaded by the user to the server. I want to check this table before a user uploads a document to ensure they don't upload a file with name that already exists.
I know how to make the connection and make the SqlCommand to query the table for an existing record. But I don't know how to check the record count from the sqlCommand I made.
Does that make sense?
Using myConnectionCheck As New SqlConnection(myConnectionStringCheck)
Dim myCommandCheck As New SqlCommand()
myCommandCheck.Connection = myConnectionCheck
myCommandCheck.CommandText = "SELECT * FROM Req_Docs WHERE Doc_Name =" & DocName
myConnectionCheck.Open()
myCommandCheck.ExecuteNonQuery()
End Using
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Aug 19, 2010I have a form for data entry which has a checkbox for featured item.
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How can I check when doing the insert if another item in the table is a feature item?
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Jan 5, 2010how to check if the particular values in a table exists?
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Oct 15, 2010I have 2 tables:
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Am I on the right way with statement below, though I got syntax problems
[Code]....
DataSource Controls :: Test If Table Exists In Database Using SQL?
Jun 9, 2010I need to somehow test if a table exists in a database. If it does not then I need to create the table. How can I test for existence of a table using SQL? It seems like some type of SQL logic is needed?
View 2 RepliesWeb Forms :: Check If Record Exists In Table And Prompt User
May 27, 2010Using C#.NET and VWD 2008 Express
I'm looking for a hand with:
When inserting, i would like to check if the record exists in the table, then if it doesn't, insert it, else either redirecting to a different page, or showing a message box saying "Record already exists" ...
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Sep 20, 2015I am learning a tutorial, it is about saving mp3 files in database.
Have a look below picture i can upload a mp3 file multiple time with the same name how to avoid it?
[URL] ...
protected void btnUpload_Click(object sender, EventArgs e)
{
using (BinaryReader br = new BinaryReader(FileUpload1.PostedFile.InputStream))
{
byte[] bytes = br.ReadBytes((int)FileUpload1.PostedFile.InputStream.Length);
string strConnString = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
[Code] .....
AJAX :: How To Check Whether Email Address Already Exists In Database
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View 1 RepliesAJAX :: Check Whether A Particular Record Exists In Database Using JQuery
Aug 18, 2015I have a asp:Button and asp:Textbox on Default.aspx page
Code is as below:
<asp:Button ID="Button1" runat="server" Text="Save" Width="80px" CommandName="Update"
OnClientClick="EnableDdlCompany();saveButtonClick();" CommandArgument="Save" OnClick="btnSave_Click"/>
<asp:TextBox ID="txtBarcodeNumber" runat="server" MaxLength="11" Width="230px"
Text='<%# Bind("BarcodeNo") %>' Display="None"
OnTextChanged="TextChanged" AutoPostBack="true"></asp:TextBox>
On button click, I want to call a javascript code to check that If the entered BarCode Number in Textbox already exist in Database, then show an alert "Number already exist" else allow user to save and navigate to Default2.aspx
I can able to do the same checking on TextBox OnTextChanged event using c# code, as below:
protected void TextChanged(object sender, EventArgs e) {
TextBox txtbarcode = fvIPRForm.FindControl("txtbarcodenumber") as TextBox;
if (txtbarcode.Text.Length > 0 && txtbarcode.Text.Length < 11) {
string error = "The Barcode Number " + txtbarcode.Text + " is invalid, the barcode length must be 11 character.";
ScriptManager.RegisterStartupScript(this, typeof(string), "Successful", "alert('" + error + "');", true);
[Code] ....
Here, IPRRequest is the class/.dll file name and IsValidBarcodeTest is a function defined in the class file
But same checking I tried using the c# code on button's OnClick="btnSave_Click" event, but dont know why this event is not firing, I guess due to CommandArgument on button, but I am not sure.
That's why I want to achieve it using Javascript.
Forms Data Controls :: Check If A GridView Exists?
Dec 9, 2010I have a page with a simple textbox, when an OrderNo is entered in te textbox the page is populated with 2 or 3 gridviews depending if the order has items reserved or on back order.
GridView1 has data about the order, like status, payment details.
GridView2 has data about orderitems, each row displays an item from the order with stock and order quantities
GridView3 has data about backorders, each row displays an item from the order with quantity reserved and quantity on back order. As is no data for GridView3 if order is not on backorder I thought that I can enclose my code inside an if block
if GridView3 isnot nothing then
'getting some data from the cells in GridView3
endif
but the code still executes.
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manager="manogar1";
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}
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View 1 RepliesJavascript - Check Email Id Already Exists In Database When Losing Focus
Mar 18, 2011I want to check the entered email id already exists in my database or not. For that I need the Text box lost focus event so that I can call it in update panel trigger asynchronously. whereas in my event I can check whether the entered value exists in database or not.
I tried:
txtEmailId.Attributes.Add("onblur", "javascript:CheckEmailIdIsExist()");
If so, the what should be inside CheckEmailIdIsExist() javascript method? how to check database values asynchronously from javascript function?
Web Forms :: Check Username And Email Address Exists In Database?
Jul 30, 2012In this article u describe how to check
[URL]
But I want to Data retrive from data base in this way can u tell me using java script and query string
Data Controls :: Check (Validate) If Record Exists In GridView When Adding New Row?
May 7, 2015I would like to check if a particular value already exist in the database Gidview row. If the value already exist, tell the user that he has already entered the record and don't save. otherwise save the record. In my case I want to check the "Random number".
<asp:TextBox ID="txtRandomNumber" runat="server"></asp:TextBox>
Maybe it could be done with a foreach loop statement.
Forms Data Controls :: Check If Item Exists In E.item.dataitem?
Oct 27, 2010I use a ItemDataBound for a repeater.But i use 2 kinds of linq querys to bind it.Some of them has a MerkID, and some doesnt have this item.So its easy i need to do this:
if(e.Item.DataItem.Contains("MerkID"))
{
//Code for linq query 1
} [code]...
So of course the if selection doesnt work, but how can i do that? I already tryed this:
DataRowView drv = (DataRowView)e.Item.DataItem; if (drv.Row.Table.Columns.Contains("MerkID"))
But that doenst work because he cant convert it to a datarowview because its a linq class.So what to do? Right now i use a try and catch, but there are better solutions i guess...
DataSource Controls :: How To Check If Record Exists
Jan 6, 2010Just have a problem, I want people to join a mailing list, I just have a textbox and button. When a user enter's their email address, the address and time are inserted into a database. However, if the same email is added again I would like for a message to appear saying the record already exists.
Can someone show me how to do this, here is my current code:
[Code]....
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Apr 17, 2010I want to check if an sqlparameter exists before adding a new one so I don't get the error - @param was supplied multiple times. IS this possible?
View 7 RepliesCheck Checkboxlist Into Database Table
Aug 16, 2010I've seen this done a few times in C# but I'm afraid my knowledg doesn't extend into converting this to vb.net. I'm simply looking to examine a checkboxlist and then send the checked values to a database table. It's the actual inserting into the database that i'm not sure what to do with.
Here is some code...
VBNET Code:
Protected Sub InsertButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim ckbox As ListItem
Dim ckboxlist As CheckBoxList
Dim profile_id_int As TextBox
ckboxlist = CType(Me.FormView1.FindControl("Checkboxlist1"), CheckBoxList)
profile_id_int = CType(Me.FormView1.FindControl("staff_payroll_int"), TextBox)
For Each ckbox In ckboxlist.Items
If ckbox.Selected = True Then
'insert record in profile_skill_link table
Try
'Create a New Connection for the Stored Procedure
Dim myConnection As New Data.SqlClient.SqlConnection(Me.SqlDataSource3.ConnectionString)
Dim mysql As String
myConnection.Open()
mysql = "Insert into staff_profile_string_link(staff_profile_int, skill_id_int) values('" + ckboxlist.SelectedItem.Text + "','" + id_int.Text + "';)"
'MsgBox(mysql)
'insert into database here
Catch ex As Exception
Response.Redirect("~/GenericErrorPage.aspx", False)
End Try
End If
Next
End Sub
Data Controls :: How To Check Transaction ID From SQL Table In ViewState GridView
Jan 5, 2014how to write a code to check the Transaction ID from SQL Table in view state gridview for each row data ?
For Example, select transID from Table.Current ID is 14481.
So now when i add in the view state grid view, it show the same trans number
Is it any method to write the + values in add row function in c# to increase the values ? as below is the c# code.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
[Code].....
Forms Data Controls :: Populate Grdiview / Check To See If Data In A Table Has Changed?
Nov 13, 2010On a page load, how do I check to see if data in a table has changed? And if any data has changed, populate Gridview1?
View 2 RepliesHow To Check If A Record Exists
Jul 26, 2010I tried to illustrate the problem by providing the following instructions, unfortunately the data was deleted and the example failed. It is now working. I have been working through one of Scott Mitchells ASP.NET Application Tutorials Title "Using TemplateFields in the GridView Control"
The URL is ...
The example demonstrates a temporary field being used in different ways, one of which involves dates in a Calender. If the HireDate in the example is deleted or not available the program fails. Providing the date is a valid date it works fine....