- Strength to Increase Rep
- +6
- Strength to Decrease Rep
- -1
- Upvotes Received
- 7
- Posts with Upvotes
- 5
- Upvoting Members
- 6
- Downvotes Received
- 0
- Posts with Downvotes
- 0
- Downvoting Members
- 0
94 Posted Topics
Re: hi I want to know how to read from excel file i know how to open it but how to store cell's value from excel to the variable i wrote varname=xlsheet.Cells(1, 1) and i got run timeerror "cast from range to "string not supported | |
Re: "Never argue with idiots, they'll just bring you down to their level and beat you with experience." :) | |
Re: i hope this link will help you [url]http://www.vbdotnetheaven.com/UploadFile/aghiondea2/StoringImagesInVB11122005034248AM/StoringImagesInVB.aspx?ArticleID=7ed1fe42-0819-4912-88ae-bbc43829d8a6[/url] | |
Re: i think you just need to add reference to System.configuration.dll | |
Re: I am not sure if I understand you well :S do you want to clear the textbox from data when user click some button ? you do like this [CODE]Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click TextBox1.Text = "" [/CODE] and that for all ur … | |
Re: Add ColorDialog control to the form , then change its property to the way you want it to show . to show the dailog [CODE]ColorDialog1.ShowDialog()[/CODE] you can get the color that user selected by ColorDialog1.Color after this you can set the backcolor of form to this color | |
Salam... I need to get value that has been selected from combobox .. the values in combobox is taken from column's contents of one of tabel in database..so once i write if x=combobox.selectedvalue..i got error that i Additional information: Operator is not valid for type 'DataRowView' and string | |
Re: [QUOTE]I am getting an error called 'Data type mismatch in criteria expression'. This only happen when I tried to add an item.[/QUOTE] I think the error means that you have variable from one type and you are trying to store in it value from other type . since you have … | |
Re: I got 27 [QUOTE]You are an average on-line user. You may surf the Web a bit too long at times, but you have control over your usage.[/QUOTE] | |
Re: hi MichelleCrews, welcom to Daniweb ! I hope you will enjoy here and learn more to get A :D | |
Re: i do not understand your code. >>"this the code for button next n previous" you mean that the same code for next and previous ? each one has its own code [CODE] i = 0 [B]For i = 0 To -1[/B] TextBox1.Text = varDataSet.Tables("tbl_rop").Rows([B]0[/B]).Item("Name_User") TextBox2.Text = varDataSet.Tables("tbl_rop").Rows(0).Item("Date_of_birth") TextBox3.Text = varDataSet.Tables("tbl_rop").Rows(0).Item("Hobbies") … | |
hi every one . does any one know how to insert checkbox in datagrid so user can select row and how to know which rows selected | |
Re: [QUOTE]plz...m relly need a immediate coding.. plz sumbody solve my probs.. i want to subtract my current quantity stock went m enter any amount at a textbox... currentquantity = fullquantity - amount(type in the textbox) then save to database can sumbody help mee..plzzz[/QUOTE] As Teme64 said open new thread with … | |
Re: [QUOTE]When i click on the ID field that id should get displayed in the ID TEXT FIELD...[/QUOTE] do you mean display it on TextBox? if yes then use MouseUp event handler inorder to know when user select the cell, and then display the cell content in textbox [CODE]Private Sub DataGrid1_MouseUp(ByVal … | |
Re: [QUOTE][CODE] Private Sub add(Of T)(ByVal x As T, ByVal y As T) Dim res As T res = x + y MsgBox(res) End Sub[/CODE][/QUOTE] what type T ?? | |
Re: do you get error, or the program run but no change made to database or what ? | |
Re: it would be better if you post your code any way , I think you didn't convert from string to double before calculating, you wrote like this [CODE] Balance.Text = coursefees - installment1.Text[/CODE] it may work but if user did not enter value and leave the textbox empty then you … | |
Re: [QUOTE]i have to input number in all textboxes so it gives me a zero in the total. also i have an error coming up its text is not member of double. please help on this.[/QUOTE] sorry but I don't understand the problem , you mean the total is always zero? … | |
Re: [QUOTE] I just wanna discuss about that difficulty, have some advises and know about difficult that you find or found out to plan yours careers.[/QUOTE] About me I had job interview few days ago , he asked me what your career plan for the next 5 years :S I really … | |
Re: 1/to use image in the form you need [URL="http://www.startvbdotnet.com/controls/gbox.aspx"]PictureBox Control[/URL] 2/in order to change the picture whenever the user select item from the comboBox you use the SelectedIndexChanged event, you can get the item that user selected by [CODE] dim selectedItem as string selectedItem = ComboBox.Text [/CODE] | |
Re: there are many good tutorials in net like [URL="http://www.homeandlearn.co.uk/NET/nets12p4.html"]this [/URL] and [URL="http://www.itwriting.com/pcw/vbdotnetdata.php"]this[/URL] you can search for more and it will help you to come up with your code if you need help you can ask here | |
Re: to read from file line by line you need to use ReadLine method as you did , plus checking if you reached the end of file or not by Peek method [CODE]While loadf.Peek <> -1 Line = loadf.ReadLine() ... ... End While[/CODE] [QUOTE]Please just give me the code to read … | |
Re: [QUOTE][CODE]Public Sub save(ByVal sav As Double) If sav= 0.0 Then Console.WriteLine("Is not valid") Else mainsave = sav End If[/CODE] [/QUOTE] what I understand that the user will enter the value in textbox , after you check that user did not leave it empty you can use it . [CODE] Dim … | |
Re: you will need dataAdapter and dataset by using dataset you can [B][I]update[/I][/B] the value of any cell in database [CODE]Me.DataSet11.Tables("Table_Name").Rows(0).Item(1) = TextBox1.Text[/CODE] this will not update your databse , to change it you must write [CODE]Me.OleDbDataAdapter1.Update(Me.DataSet11)[/CODE] inserting new row is like updating, you first add new row into dataset then … | |
Re: first thing you need to store the special characters in [URL="http://www.startvbdotnet.com/language/arrays.aspx"]array [/URL], so you will declear array [CODE]Dim SC(36) As char[/CODE]after that store values [CODE]SC(0) = "Ï" SC(1) = "Î" .......[/CODE]2-go through the user's string using For loop and for each character in user's string ,which you can get by … | |
Re: [CODE] If myGuess = randNum Then[/CODE] here you compare between [I][B]integer[/B][/I] and [I][B]class Random [/B][/I] to solve this [CODE]If myGuess = randNumGenerated Then[/CODE] same thing in the "<" and ">" but you need to define randNumGenerated as global variable I think.. any way your game is hard :S at least … | |
Re: [QUOTE]My Question is should I create a database first...if yes then how and with what? if No then what i`m suppose to do...?[/QUOTE] as Jx_Man said you need to have database so you can make it as source of your data you can use Microsoft Access to create it read … | |
Re: and[URL="http://www.java2s.com/Tutorial/VB/0160__Collections/0220__ArrayList.htm"] this [/URL]is other site now we are waiting your code :) | |
Re: [QUOTE]How can I declare the InitialValue.text, txtSalvageValue.Text and TxtAssetLife.Text part of this code?[/QUOTE] You do not declare InitialValue.text you just declare variable as textbox. textbox has many properties one of them is text we access properties of InitialValue variable by typing[B] InitialValue[B][COLOR="Red"].[/B][/COLOR][/B] what comes after its property to declear textbox … | |
Re: [CODE] x = TextBox1.Text.ToCharArray While continue = True And (i < x.Length) If IsNumeric(x(i)) Then y += x(i) Else continue = False MessageBox.Show("Sorry, only numbers allowed") End If i = i + 1 End While TextBox1.Text = y[/CODE] any way I think not allowing user from start to violate the … | |
Re: [QUOTE]What do I need to do to correct that?[/QUOTE] you need to do as Jx_Man suggest , use Convert.ToSingle | |
Re: [QUOTE]For i = 0 To fLen1 - 1 snglRead1(i) = br1.ReadSingle() 'EXCEPTION thrown right here Next[/QUOTE] maybe you trying to read while you reached the end of file , [QUOTE]fLen1 = f1.Length[/QUOTE] i think this return length on byte , try this [CODE]fLen1 = Int(f1.Length / 4)[/CODE] | |
Re: i hope [URL="http://www.vbdotnetheaven.com/UploadFile/tameta/DataGridControl04112005012947AM/DataGridControl.aspx"]this artical [/URL]will help you | |
Re: to know which row is selected use this [CODE]DataGrid1.CurrentRowIndex [/CODE] to show the value of first column in text box [CODE]Me.TextBox1.Text = DataGrid1.Item(DataGrid1.CurrentRowIndex, [B]0[/B])[/CODE] | |
Re: u mean how to play flash movie in vb.net ? add Shockwave Flash Object from COM Component ( by right click on tool box -->>Add/Remove Items -->> COM Component tab --->> Shockwave Flash Object) then drag the item that will appear in tool box to the form on play button … | |
Re: see [URL="http://www.daniweb.com/forums/thread72816.html"]this link [/URL]for adding flash file | |
Re: [CODE]YourString.Substring(0, YourString.IndexOf("have"))[/CODE] but you must handle what if "have" does not exist , i think it will give you error | |
Re: [QUOTE]Dim intListIndex As Integer[/QUOTE]what i understand from your code that intListIndex is integer , so you can not write intListIndex.SelectedIndex to print only what the user select try this [CODE] e.Graphics.DrawString(lstProducts.SelectedItem, fntPrintFont, Brushes.Black, sngX, sngY) [/CODE] | |
Re: i am not sure if i understand you . any way to check mandatory fields , check they not empty for example if user must enter ID in textbox check it like this [CODE] if Id_textbox="" then Label1.Text = "you must enter the ID" end if [/CODE] about confirming exit … | |
Re: i did not understand why u use For loop , do you want to show [B]all [/B] the array's content in one label ? if yes then [CODE]For subscript As Integer = 0 To [B]3[/B] ratesLabel.Text =[B]ratesLabel.Text[/B]+ " "+ rates(index).ToString Next subscript[/CODE] if you want to show only one rate … | |
Re: [URL="http://www.devcity.net/Articles/102/Articles.aspx?a=ViewArticle&ArticleID=102"]this [/URL] is good explanation for what you need | |
Re: you can use split method in string class [CODE] Dim namepart(3) As String fullname = TextBox1.Text For i = 0 To TextBox1.Text.Length - 1 namepart = fullname.Split(" ") Next TextBox2.Text = namepart(0) TextBox3.Text = namepart(1) TextBox4.Text = namepart(2)[/CODE] you can read more about array [URL="http://www.startvbdotnet.com/language/arrays.aspx"]here[/URL] and about string [URL="http://articles.techrepublic.com.com/5100-3513-6030362.html"]here[/URL] | |
Re: are you asking about how to loop thru database ? i think like this [CODE]count = Me.DataSet.Table_Name.Count For i = 0 To count - 1 m = Me.DataSet. Table_Name.Rows(i).Item("Column_name") Select Case m Case "Leo" Display image of Leo in Me.DataGrid1.Item(i, 0) . . . etc End Select[/CODE] | |
Re: as you did here [QUOTE]Dim p As String = rdr(1) If txtPassword.Text = p Then[/QUOTE] you can show the data in lable or textbox [code]textbox1.text=rdr("column_name")[/code] | |
Re: read [URL="http://www.codeproject.com/cs/webservices/SendSmsThroughWS.asp"]this[/URL] it may help u | |
Re: >number = number * 4.3 i think that's wrong , you need to add 125,000 to the population grouth each year number=number+(number*4.3) Loop Until count = 200000 other thing why you stop looping untill count=200 000 ?i think you mean number not count | |
Re: use boolean varaible to indicate if the user enter correct value for each input like this [CODE]If Val(employeeid_txt.Text) > 10 Or Val(employeeid_txt.Text) < 1 Then MessageBox.Show("Employee Id Outwith Range 1 to 10 ", "Please re-enter", MessageBoxButtons.OK) Else [B]correct_EmployeeID=true [/B] End If[/CODE] then if all inputs for user are correct , … |
The End.