Compiler Error Message: CS1501: No overload for method 'ToString' - ASP.NET

[itsvineeth209]

Source Error:



Line 248: //{
Line 249:
Line 250: int RollNo = Convert.ToInt32 (str.ToString(s tr.Append(GridV iew1.Rows[i].Cells[1].Text)));
Line 251:
Line 252: DeleteStudent(R ollNo);


Source File: h:\Office Works\Projects\ Sample Applications\Gr idViewVitCode.a spx.cs Line: 250


Plz solve this problem.

This is the actual full code

for (int i = 0; i < GridView1.Rows. Count; i++)
{
StringBuilder str = new StringBuilder() ;
GridViewRow row = GridView1.Rows[i];

bool isChecked = ((CheckBox)row. FindControl("Ch eckBox1")).Chec ked;

if (isChecked)
{
//str.Append(Grid View1.Rows[i].Cells[1].Text);


// Column 2 is the name column


int RollNo = Convert.ToInt32 (str.ToString(s tr.Append(GridV iew1.Rows[i].Cells[1].Text)));

DeleteStudent(R ollNo);

//Refresh Grid

BindGrid();


}

[shweta123]

Hi,

The syntax of the ToString method is as follows :
e.g.

str.ToString()

So in order to remove the error you you can make change in your at the following line :

str.Append(Grid View1.Rows[i].Cells[1].Text)
int RollNo = Convert.ToInt32 (str.ToString() );

Source Error:



Line 248: //{
Line 249:
Line 250: int RollNo = Convert.ToInt32 (str.ToString(s tr.Append(GridV iew1.Rows[i].Cells[1].Text)));
Line 251:
Line 252: DeleteStudent(R ollNo);


Source File: h:\Office Works\Projects\ Sample Applications\Gr idViewVitCode.a spx.cs Line: 250


Plz solve this problem.

This is the actual full code

for (int i = 0; i < GridView1.Rows. Count; i++)
{
StringBuilder str = new StringBuilder() ;
GridViewRow row = GridView1.Rows[i];

bool isChecked = ((CheckBox)row. FindControl("Ch eckBox1")).Chec ked;

if (isChecked)
{
//str.Append(Grid View1.Rows[i].Cells[1].Text);


// Column 2 is the name column


int RollNo = Convert.ToInt32 (str.ToString(s tr.Append(GridV iew1.Rows[i].Cells[1].Text)));

DeleteStudent(R ollNo);

//Refresh Grid

BindGrid();


}