Web Forms :: Compare Array Values With String?
Feb 28, 2011compare Array Values with String?
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compare Array Values with String?
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I want to compare a user-entered value on a Web form against an array of existing values from the database, and do so on blur. If match, then show error. Scenario is to stop user from needlessly filling out other fields if this record has already been entered.
how to trigger this? What parts are client-side, what parts are server-side? Can I do it without Javascript?
I need to know what would be the best choice of array to use given the following specifications. This array's size will be predermined upon the loading of the appication. All I want to do is be able to add values to this array and replace preexisting array items with new values without the array changing size. Someone suggested that I use a Dictionary Array Object? I would appreciate any suggestions.
View 3 RepliesI'm just stumped on what to do with this code, I'm just trying to implement a 'no duplicates' catch on my insert customer form, but it just slips through my if statement to the else everytime. This is the source. Also I tried a .Equals with the same results :(
Protected Sub srcAllClients_Inserting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceCommandEventArgs) Handles srcAllClients.Inserting
'Establish Variables
Dim emailAddress As String
Dim srcUsers As SqlDataSource = New SqlDataSource()
srcUsers.ConnectionString = ConfigurationManager.ConnectionStrings("ISSD21ConnectionString").ConnectionString
Dim view As DataView
view = DirectCast(srcUsers.Select(DataSourceSelectArguments.Empty), DataView)
srcUsers.SelectCommand = "SELECT EmailAddress FROM ISSDClients"
srcUsers.DataSourceMode = SqlDataSourceMode.DataReader
Dim reader As IDataReader
reader = DirectCast(srcUsers.Select(DataSourceSelectArguments.Empty), IDataReader)
emailAddress = FormView1.FindControl("txtEmail").ToString
While reader.Read()
If reader("EmailAddress") = (emailAddress) Then
lblError.Text = "Your Email is NOT Unique!"
'this is where we cancel the update and return an error
Else
lblError.Text = "Your Email is Unique!"
'nothing needs to happen, maybe just tell them that it went through
End If
End While
reader.Close()
End Sub
I have a query string which contains the value of more than one Array, I want to pass these values from Page 1 to Page 2 and then distribute the array values into new arrays on Page 2.
Here is what I have so far.
Page 1
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Page 2
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All that I get returned in EFFinal and IFFinal is System.String?
How can i send a string session array values to dataset? I have a session array where i stored textbox values. nowi want to send these values to dataset. how can i write the code in c# to send these values to dataset? I dnt want to save these values in database.
View 1 RepliesTrying to do a simple NOT IN cluase, but can't get the Linq syntax to do it.Basically, here's what I am trying to do ( in incorrect syntax):
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So, I wasnt to select all rows where d.CD IS NOT one of the values contained in the string array.
using c#, i have an array where i want to test every single line of this array if it is already contained in a table of a database. if not, i do an insert. the test if the line is already in the table is performed using update, if update fails i insert the line. this works BUT the table contains 100000 entries, the arrays i want to compare/insert contain appr. 5000 entries. so, i is really slow and takes minutes.
View 7 Repliesi have four radio buttons and one text box..i have to check the selected radio button value equals to the textbox value..
View 3 RepliesI am working on asp.net mvc using linq to sql. I have to login my application only if the user registered (in register view page).I need to know how to compare the entered login and password values with registered values
View 3 RepliesI would like to split the string to the string array.
but when the string hasn't has the splite sperator, i can't put the string into string array directly.
how to do?
if (Str.Contains(','))
{
str_array=Str.Split(',');
}
else
{
str_array=Str; <-- error occurs at this line.
}
I have a textbox control with a calendarExtender. I want to make the user select a date subsequent to Today. I have a public function, called display_error, written that displays some text in case of validation not successfull. So in this case, the validation of the date inserted by user would look like
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So, my textBox.text is a string, which I need to convert to Date to compare it to Today. Here's what I've written
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I've tried different methods, like Parse, but I keep getting the same error, String was not recognized as valid DateTime.
All of the examples I can find show the compare validator being used to see if two values are the same. Validation is succesfull if these values are the same, such as password confirmation.I want validation to succeed if values are not the same. I want to use this to be sure that someone doesn't enter the same value for two phone number fields. I want the two values to be different. Can the compare validator be used for this? I wasn't able to find any properties or examples that used it in this way. If not, how should this be done?
View 4 RepliesI have a textbox and the date needs to be in between two dates. I want a popup message to display when they are out of those parameters. I don't want to use the Validator's because they make you put in a date to move forward.Â
One option is if I do use them is it anyway to add "out of date parameters" when they don't meet those dates then move to the next question?
Another option would be to just check the date, give an error message and move to the next question. Is it possible to do either one of these?
How i can compare two text from text file and define percent between text?
View 1 RepliesI need to compare the old value of my textbox to the new value that was put intot he checkbox to see if anything changed alse I don't wnat to save anything in the wor and move to next row. Here is my gridiview with bound txtBoxes and my initial code behind.
<asp:TemplateField HeaderText="ACTUAL">
<ItemTemplate>
<asp:TextBox ID="txtActual" runat="server" Text='<%# Eval("ACTUAL_VALUE") %>' Width="60" MaxLength="8"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="TARGET">
<ItemTemplate>
<asp:TextBox ID="txtTarget" runat="server" Text='<%# Eval("TARGET_VALUE") %>' Width="60" MaxLength="8"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="TOLERANCE">
<ItemTemplate>
<asp:TextBox ID="txtTolerance" runat="server" Text='<%# Eval("TOLERANCE_RAW") %>' Width="120" MaxLength="8"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
I save a linkbutton to save it all. but I need to compare values so that I am not saving information that does not need to be saved becuase of the expensive long trip of the update process to an oracle server over a link from sql.
For Each dgi As GridViewRow In Gridmain.Rows
Dim Actualval As String = CType(dgi.FindControl("txtActual"), TextBox).Text
Dim Targetval As String = CType(dgi.FindControl("txtTarget"), TextBox).Text
Dim Tolval As String = CType(dgi.FindControl("txtTolerance"), TextBox).Text
Dim BMVal1 As String = CType(dgi.FindControl("txtBm1"), TextBox).Text
Dim BMVal2 As String = CType(dgi.FindControl("txtBm2"), TextBox).Text
Dim BMVal3 As String = CType(dgi.FindControl("txtBm3"), TextBox).Text
Dim BMVal4 As String = CType(dgi.FindControl("txtBm4"), TextBox).Text
Dim BMVal5 As String = CType(dgi.FindControl("txtBm5"), TextBox).Text
Next
If I have a GridView with 4 columnsthree of them displaying different prices of the same product and the fourth one should display the cheapest..how can I compare the values of the columns ??
View 5 RepliesI have a form where one field needs to check if the person is up to 17 years of age by between 01/01/2011 and 12/31/2011.
So I added a a Range Validator and Validator Callout ExtenderÂ
How can I get the page to check this range when the user enters in their dob in the dob textbox then when they go and enter a date in the bmidte box (if they are over 17 years of age) I want my error message to apper.
 Here's the aspx page code:
     RangeValidatorBMIDte.MinimumValue = "01/01/2011"
    RangeValidatorBMIDte.MaximumValue = "12/31/2011"
    RangeValidatorBMIDte.ErrorMessage = "Date Entered is NOT Valid. Value needs to be between 01/01/2011 and 12/31/2011."
12/31.
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i have two text boxes and one button in web form. I need to display the contents of text boxes in a datatable in the same form, when i click on the button.
How can i do this using session array. I need to store values in session array. and get back the values from session when i need .
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As you can see that the code read the XML file and put it into a string array.
this array is 1000 cell length...
and that's my problem...
I want the array to be with dynamic size no limited one...
I would like to store an array of string or a List<string> in a Hiddenfield. You can c the code I am trying below :
public
int[] ListEmails{
get {
if (hdnEmailBody.Value.Length == 0)return
new List<string>();return
hdnEmailBody.Value.Split();
}set
{
hdnEmailBody.Value = ?
}
}
value;
my column data is from 'nvarchar' type and the data for my text box is from string type. when i want to compare these value , the expression always is false . even when the values are equal. i use Convert.toInt32 for my column have dataType int but in this part i want compare two string type.
View 2 RepliesI have the following code to generate table from User inputs for ROWs and COLUMNs and i Have created a new array. I need read the text value from table , convert it to int and save it in the array.
Table tbl = new
Table();// Add the table to the placeholder control
PlaceHolder1.Controls.Add(tbl);
// Now iterate through the table and add your controls
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When I run this It throws an error that - Input string was not in correct format
What I want to happen is, I will populate or load the patient Name into TextBox. If the patient are 20, the page will dynamically create 20 textboxes to display the patient name..And when I click save, Changes will be save base on the input on textbox..
View 1 RepliesI am using string builder class to store the dropdown selected values .. I am doing this on the selected index change event .. The problem is the previous value does not retain ..
sb.Append(degreedropdown.SelectedValue+"-");
string nums = sb.ToString();
string pattern = "-";
string[] substrings = Regex.Split(nums, pattern);
arraylength = substrings.Length;